South Korea in September 2025 | Weather + Best Festivals in Seoul and Beyond
After the searing temperatures and exhausting humidity of Korea in August, we all breathe a collective sigh of relief in Korea in September.
Welcome to one of the very best months of the year in South Korea!
Visiting Korea in September is an excellent idea!
In this guide, you’ll learn:
- what the weather is like during September in Korea
- the Seoul weather in September and other major cities and tourist hotspots, including Busan, Gangneung, and Jeju
- the best autumn festivals to attend around the country in September
- what to wear and the best things to pack for a successful trip to South Korea in September
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In this guide
- 1 Visiting Korea in September
- 2 How’s the weather in South Korea in September?
- 3 Summary of Korea’s Weather in September
- 4 Planning a trip to Korea?
- 5 Korea in September | Typhoons
- 6 Autumn Tours in Korea
- 7 Korea in September | Best Festivals and Events
- 8 Essential Day Tours from Seoul
- 8.1 Jecheon International Music & Film Festival | 제천국제음악영화제
- 8.2 Muju Firefly Festival | 무주 반딧불축제
- 8.3 Hyoseok Culture Festival | 평창효석문화제
- 8.4 Gyeongbokgung Palace Starlight Tours | 경복궁 별빛야행
- 8.5 Changdeokgung Palace Moonlight Tour | 창덕궁 달빛기행
- 8.6 Gyeryong World Military Culture Expo | 계룡세계군문화엑스포
- 8.7 Busan International Film Festival (BIFF) | 부산국제영화제
- 8.8 Geumsan World K-Insam Festival | 금산세계인삼축제
- 8.9 Seoul Drone Show | 드론 라이트 쇼
- 8.10 Jeongseon Arirang Festival | 정선아리랑제
- 8.11 Hanseong Baekje Cultural Festival | 한성백제문화제
- 8.12 Seosan Haemieupseong Fortress Festival | 서산해미읍성역사체험축제
- 8.13 Seoul International Fireworks Festival | 서울세계불꽃축제
- 8.14 Andong Mask Dance Festival | 안동국제탈춤페스티벌
- 8.15 Suwon Hwaseong Culture Festival | 수원화성문화제
- 8.16 Great Baekje Festival | 백제문화제
- 8.17 Gangnam Festival | 강남 페스티벌
- 9 September in Korea | What to Wear
Visiting Korea in September
If you’ve planned your trip to South Korea for September, you’re in for a wonderful time! With golden light and comfortable weather, it’s easy to feel optimistic this month.
Whether it’s challenging yourself with a hike up Bukhansan, seeing the sights from the deck of a luxury yacht on the Han River, or scooting around Seoul on an e-bike, September is definitely a month to spend as much time outdoors as possible.
Sunsets in Korea in September are simply glorious.
In Korea in September, kids are back in school, and the epic crowds seeking peak autumn foliage haven’t arrived yet. So booking tours and the ideal accommodation in Seoul is relatively easier, and more affordable than in October and November.
You’ll have to wait until October or November to see this kind of fall foliage in Korea.
There’s also plenty to keep you entertained in South Korea in September, with some truly unique festivals and events set to take place in this first month of autumn. I’ll cover these a bit later on in this guide.
How’s the weather in South Korea in September?
After the oppressiveness of summer in Korea, the September weather feels just a little bit like heaven. This used to reliably be one of the best months to visit Korea climate-wise, with ideal temperatures, minimal humidity, and glorious sun-filled days… but I’m afraid it’s no longer the case.
Global warming is wreaking havoc on our usual weather patterns unfortunately, so it’s best to prepare for some hot and humid days this month too.
The weather in Korea in September is ideal.
However, there IS still an overall cooling trend in Korea during September, with daytime high temperatures decreasing 4°C | 8°F, from 27°C | 81°F to 23°C | 73°F over the course of the month.
It’s still hot enough across the country to be out in shorts and t-shirts for the first few weeks of September in Korea, but it’s wise to prepare a sweater or light jacket for evenings. Near the end of the month, it can feel downright chilly at night, with average lows of 17°C | 63°F.
It’s warm enough for shorts in the beginning of September in South Korea © Live Studio, Korea Tourism Organization
Summary of Korea’s Weather in September
City | Average Lows | Average Highs | Precipitation |
Seoul | 22°C | 72°F | 30°C | 85°F | 364-mm | 14.33-inches |
Busan | 25°C | 77°F | 28°C | 82°F | 204-mm | 8.03-inches |
Jeju Island | 24°C | 76°F | 30°C | 86°F | 263-mm | 10.35-inches |
Sokcho | 21°C | 70°F | 27°C | 81°F | 293-mm | 11.54-inches |
Jeonju | 23°C | 73°F | 31°C | 88°F | 278-mm | 10.94-inches |
Gyeongju | 22°C | 72°F | 29°C | 83°F | 212-mm | 8.35-inches |
Seoul Weather in September
With average temperatures ranging from 17°C | 63°F to a still warm 26°C | 78.°F, the Seoul weather in September is simply wonderful. It cools down as we head into Seoul’s incredible autumn season, but jeans and multiple layers are all that’s required for exploring comfortably this month.
You don’t need more than a light jacket and layers to explore Korea comfortably in September.
The humidity decreases quickly in Seoul in September, and by the end of the month, it sits at just 3%. There are about 9 days of rain, totalling approximately 170-mm, on average, but it’s not really anything to worry about.
September in Korea is such an incredible relief.
*Personal note: Last year, it stayed hot and humid during the day time right up until the end of September. It started to cool down a little in the last week, with evenings and nights pretty tolerable. Is this new September weather, or was it an outlier? We will have to wait and see.
Planning a trip to Korea?
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South Korea Travel Essentials
Hotels and Other Accommodation
Tours, Admission Tickets, and Things to Do
Klook | Trazy | Get Your Guide | Fever |. Creatrip
Airport Transfers, Transit, and Transportation
Discounted AREX Incheon Airport Express Train
K Airport Limousine Bus from Incheon Airport
Private Airport Transfers from Incheon or Gimhae
Car Rentals (International Drivers Permit required)
Seoul to Busan KTX high speed rail tickets
Korean Express and Intercity Bus Reservations
Wifi, SIM Cards, and Portable Wifi
Airalo eSIM | unlimited data SIM cards | Portable and Pocket wifi
Money-Saving City Passes
Visit Busan Pass with FREE admission to 31 attractions + 77 discounted
Wowpass, Prepaid Debit Card for Cashless Payment in Korea (includes T-money Card)
Busan Weather in September
With its location on Korea’s southeastern coast, Busan in September is usually cooler than Seoul. It has average daily temperatures ranging from 21°C | 70°F to 24°C | 76°F. It rains for approximately 9 days, but precipitation only totals about 70-mm over the entire month.
September is a great month to take a ride on the Haeundae Sky Capsule.
If you don’t mind a cooler sea, it’s still possible to swim at Busan’s beaches. The water temperature sits at 25°C | 77°F in September in Korea, and there’s plenty of sunshine to enjoy. Be sure to slather on that sunscreen though – the UV index is still very high.
BUSAN ONE DAY TOURS | Major attractions like Taejongdae Cliff, Songdo Skywalk, Gamcheon Culture Village, and Haedong Yonggungsa Temple are spread out in several different areas of Busan. Make it easy with by joining a one day tour. Check options here.
Jeju Weather in September
In September, average temperatures on Jeju Island range from 20°C | 69°F and 26°C | 78.4°F with 11 days of rain, totalling approximately 220-mm of precipitation.
You can still swim at gorgeous Gwakji Beach in September.
The water temperature is 25°C | 76°F, so you can still swim comfortably at one of Jeju’s gorgeous beaches.
GETTING AROUND JEJU ISLAND | Jeju is a surprisingly large island, and public transit can be slow and time-consuming. If you don’t have a ton of time, your best options are to rent a car and drive yourself, or join a group tour of major Jeju Island sites.
- Eastern Jeju Discovery: Horse riding, Seongeup Folk Village, Women Diver Show (Haenyeo Museum on rainy days), Seongsan Sunrise Peak + Manjang Cave
- Western Island Exploration: Hyeopjae Beach, Hallim Park, O’sulloc Green Tea Field, Sanbang Cruise + Cheonjeyeon Waterfall
- Southern Jeju Adventure: Mysterious Road, Hallasan, Alive Museum, Jusangjeolli Lava Cliff, Lonely Rock + Jeongbang falls
- Jeju Island UNESCO Day Tour: UNESCO sites like Manjang Cave, Seongsan Ilchubong Peak, and Hallasan
Gangneung Weather in September (Gangwon-do)
The Korea weather in September on East Coast beaches is typically quite a bit cooler than in the interior.
The East Coast of Korea can be chilly, even in summer.
In Gangneung in September, the average daily temperatures range from 16°C | 60°F to 21°C | 70.5°F. The sea temperature hovers around 22°C | 71.2°F – which makes for uncomfortable swimming, for most people.
In my experience. the East Coast can feel quite chilly even in summer time, so be prepared with some heavier weight clothing.
AFFORDABLE TAXI TOUR OF GANGNEUNG | This 3 hour private taxi tour of Gangneung area sites provides incredible value at less than 55,000 won (USD40) per car (max 4 people). See famous sites like the BTS bus stop, Anmok Beach Coffee Street, Gyeongpo Lake, or Ohjukheon at your own pace.
Looking for other fun things to do in the Gangneung area? Check day and all-inclusive tour options here.
Korea in September | Typhoons
Typhoon season in South Korea is from July to September. At this time a few years ago, Typhoon Hinnamnor was barreling towards Jeju Island. It was at Korea’s highest typhoon rating, with a maximum wind speed of 55-m per second – strong enough to collapse a building.
Maemiseong Fortress was built to protect the land, after Typhoon Maemi hit Korea (the last super strong typhoon).
If a typhoon should hit while you’re visiting Korea in September, it’s best to stay indoors, shut the windows tight and avoid places where there could be flooding or mudslides… and maybe avoid Jeju Island. A lot of flights get cancelled or delayed there at difficult weather times.
Autumn Tours in Korea
Many of the best fall foliage spots in Korea are located in rural areas, or nestled deep inside provincial and national parks. Trying to do it independently using public transport is often time-consuming and more expensive, so joining a day tour is the easiest and most affordable way to see them. Check them out here!
Wondae-ri Birch Forest looks like a dream © Dodream, Korea Tourism Organization
- Seoraksan + Nami Island | September 16th – November 30th
- Jangtaesan and Jeonju Hanok Village Day Tour from Seoul | September 16th – December 10th
- Suwon Hwaseong UNESCO Fortress + Jangtaesan | September 16th – November 29th
- Nari Pink Muhly Grass + Nami Island + Gangchon Rail Bike | September 23rd – October 18th
- Seoraksan (Osaek Autumn Foliage) + Nami & Garden of Morning Calm OR Alpaca World | October 1st – November 28th
- Seoraksan National Park Hiking Tour (Private or Join-in | no set dates, recommend booking in the last 2 weeks of October
- Hwadam Botanic Garden + Namhansanseong Fortress (UNESCO) | October 21st – 31st
- Seoraksan National Park with Cable Car Day Tour from Seoul | October 15th – November 8th
- Seoul City Autumn Tour (Gamaksan, Eunpyeong Hanok Village, Haneul Park + Jingwansa) | October 16th – November 30th
- Jirisan National Park Autumn Tour | October 21st – November 4th
- Bulguksa Temple and Gyeongju Hwangnidan-gil Autumn Tour | October 24th – November 12th
- Naejangsan National Park Autumn Foliage Tour | October 25th – November 10th
- Classic Naejangsan National Park Tour | October 27th – November 14th
- Gyeongju Autumn Foliage One Day Tour | October 28th – November 15th
Naejangsan is in peak foliage in early November © IR Studio, Korea Tourism Organization
It’s also possible to see pink muhly grass from mid-September in some places. Here’s a few day tours to pink muhly hotspots in Korea.
Korea in September | Best Festivals and Events
When September hits Korea, it’s like we all wake up from a deep summer hibernation, fully recharged and ready to explore the country. The streets are packed and the mood is vibrant.
This list is by no means exhaustive, but here’s a rundown of some of the major festivals and events to check out in Korea in September.
Cherry blossom festivals take over Korea in April ⓒ Gangwon Office, Korea Tourism Office
Visiting Korea at another time of the year? Learn about weather and festivals for other months in Korea, in the following detailed guides.
- Korea in January: The Coldest Month of the Year
- Korea in February: The Final Month of Winter
- Korea in March: First Signs of Spring
- Korea in April: Chasing Cherry Blossoms
- Korea in May: In Full Bloom
- Korea in June: The Best Month of Summer
- Korea in July: The Peak of Summer
- Korea in August: Summer Vacation for EVERYONE!
- Korea in October: Full on Fall Foliage
- Korea in November: Autumn to Winter Transition
- Korea in December: Christmas Lights Galore
Snow and ice festivals happen during winter in Korea.
Seoul Light & DDP Autumn Festival | 서울라이트 가을
Festival Dates: 2025 TBA
Address: 281, Euljiro, Jung-gu, Seoul | 서울특별시 중구 을지로 281 (을지로7가)
Seoul Light is a massive media facade festival that projects images onto the surface of the Dongdaemun Design Plaza’s curvy architecture. Designed by both Korean and international artists, it began in 2019, and has already welcomed over a million visitors.
Seoul Light is a free for all this year!
Best of all, Seoul Light is free to see! I’ve personally gone to Seoul Light a few times, and been completely awestruck. Shows start at 7:30PM, and run until 10:00PM. Get full details here.
After Seoul Light, explore the rest of Dongdaemun Design Plaza, then head over to nearby Little Russia to eat some shashlik at Fortune Cafe.
Head to Fortune near DDP for a break from Korean food.
Jamsugyo Ttubeok Ttubeok Festival | 뚜벅뚜벅 축제
FESTIVAL DATES: 2025 TBA, Sundays from September 1st – October 27th last year
Address: 350, Dongjak-daero, Seocho-gu, Seoul | 서울특별시 서초구 신반포로11길 40
Banpo Hangang Park was already one of the best places to enjoy Seoul’s riverside park, but it just keeps getting better. Head to Jamsugyo submarine bridge (yes, this is the one under the Banpo Bridge Rainbow Fountain) on Sundays between 1 and 9PM to enjoy the Ttubeok Ttubeok Festival
An amazing location for a festival! © Seoul Metropolitan Government/Penta Press
On these days, the bridge is completely car-free, and you can enjoy fun activities like sunset yoga, a silent DJ party, concerts, dance classes, food trucks, beanbag chairs, a food festa, and so much more.
Seoul Sculpture Festival
Festival Dates: September 1st – 7th, 2025
Address: Various locations including Songhyeon Green Plaza, World Cup Park, Dream Forest, and more.
The Seoul Sculpture Festival is a brand new event starting this September in Korea. This festival will turn Seoul into an open-air museum, with sculptures and artworks displayed in outdoor areas across the city.
It’s free to attend, and the weather is finally cooperating, so get out there for a stroll among the sculptures.
Seoul Fashion Week
WHEN: September 1st – 7th, 2025
Seoul Fashion Week will be back full-force at Dongdaemun Design Plaza this September in Seoul. This promises to be a gorgeous event with all the cutting-edge style, spectacular shows, and celebrities you’d expect from Korea’s premier fashion event.
Seoul Fashion Week takes place at the DDP © Andrea de Santis, Unsplash
Essential Day Tours from Seoul
What | Where | Cost | Why Join this Tour | Full Details |
DMZ Tour | Demilitiarized Zone / Paju / Imjingak | from 72,100 won | Parts of the DMZ MUST be visited on a guided tour, due to security clearances. Optional add-ons like suspension bridge, or DMZ gondola available. | |
Suwon Hwaseong Fortress + Korean Folk Village | Suwon and Yongin | 78,500 won | Hwaseong is a majestic UNESCO Fortress. The Korean Folk Village is a vast living museum of the Joseon Dynasty. Both are south of Seoul in satellite cities. | |
Nami Island + Surrounding Region | Gapyeong / Chuncheon | from 38,000 won | Most popular day tour near Seoul, but spread far apart from each other, with few public transit options. Huge range of add ons to choose from, like Alpaca World to the Rail Bike to the Garden of Morning Calm. |
Jecheon International Music & Film Festival | 제천국제음악영화제
Festival Dates: September 4th – 9th
Address: 14-1, Uibyeong-daero 12-gil, Jecheon-si, Chungcheongbuk-do | 충청북도 제천시 의병대로12길 14-1 (명동)
The Jecheon International Music and Film Festival typically takes place during September in Korea, and showcases movies and documentaries that combine film and music, in gorgeous natural settings.
Cheongpyeong Lake is gorgeous! © Steve46814 (CC BY-SA 3.0)
There’s a separate musical program that features live concerts, outdoors on the shores of Cheongpyung Lake and Uilimji.
DISCOUNTED NANTA SHOW TICKETS | Nanta is Korea’s longest running show for a reason. Watch an incredibly entertaining performance that mixes acrobatics, comedy, and percussion using kitchen utensils. Best of all, it’s nonverbal, so anyone can enjoy this show, regardless of language. Check availability of Nanta tickets here.
Muju Firefly Festival | 무주 반딧불축제
Festival Dates: September 6th – 14th, 2025
Address: 326-14, Hanpungnu-ro, Muju-gun, Jeollabuk-do | 전라북도 무주군 한풍루로 326-14 등나무운동장
Muju is a natural habitat for fireflies, so it’s possible to see a field full of romantic flickering lights easily at the Muju Firefly Festival in Korea in September.
Muju is one of Korea’s natural firefly habitats.
You can enjoy traditional performances and concerts, but the highlights are definitely night programs, like firefly exploration and stargazing.
Most programs are free, but online reservation in advance is required for both stargazing (5,000 won) and firefly exploration (15,000 won).
Hyoseok Culture Festival | 평창효석문화제
Festival Dates: September 5th – 14th, 2025
Address: 157, Ihyoseok-gil, Pyeongchang-gun, Gangwon-do | 강원도 평창군 봉평면 이효석길 157 (봉평면)
The Hyoseok Culture Festival is held yearly to commemorate Lee Hyo-seok’s popular novel, “When Buckwheat Flowers Bloom.”
Buckwheat flowers bloom in Korea in September © Kim Jiho, Korea Tourism Organization
Make your way to Bongpyeong to see the Lee Hyo-seok Culture Village and Memorial Hall to learn about the book, and see the beautiful fields of buckwheat flowers that bloom every September in Korea.
Learn all about the festival here.
Gyeongbokgung Palace Starlight Tours | 경복궁 별빛야행
Starlight Tour Dates: 2025 TBA, September 11th – October 5th last year
Gyeongbokgung at Night Dates: 2025 TBA, September 11th – October 27th last year
Address: 161, Sajik-ro, Jongno-gu, Seoul | 서울특별시 종로구 사직로 161 (세종로)
Twice a year, Gyeongbokgung Palace is brilliantly lit and opened for night viewing. General night time viewing dates were from September 11th to 27th last year, but if you wanted a guided tour, it was necessary to enter a lottery for Starlight Tour tickets.
Details for 2025 TBA, but I’ll update as soon as dates are announced.
Enter Gyeongbokgung at night free, if you’re wearing a hanbok.
These 110 minute tours from are from Wednesday to Sunday, in 2 separate time slots. The first starts at 18:40, and the second at 19:40. There are only 68 spots per day, but those who are successful will enjoy a royal banquet at Gyeongbokgung Palace’s royal kitchen, gugak performances, and a night tour of the spectacular palace grounds.
There are usually 3 nights dedicated to foreign visitors, with tickets sold exclusively on Creatrip. Once announced, it does sell out incredibly fast, so act quickly!
Changdeokgung Palace Moonlight Tour | 창덕궁 달빛기행
Festival Dates: 2025 TBA, Thursdays – Sundays, from September 12th – November 10th last year
Address: 326-14, Hanpungnu-ro, Muju-gun, Jeollabuk-do | 전라북도 무주군 한풍루로 326-14 등나무운동장
Moonlight tours of UNESCO listed Changdeokgung Palace are back for a 15th year. To allow more visitors access to this stunning experience, the maximum number of daily visitors has been raised to 150.
Changdeokgung is gorgeous at night!
Tours are offered at 7:00, 7:05, 7:10, 7:35, 7:50, 7:55, and 8:00PM. Each tour lasts approximately 90 minutes, and tickets cost 30,000 won each. A maximum of 2 tickets can be purchased per person.
There are special tours for foreigners, on limited dates. I had the privilege of attending this year, and it is unforgettable.
I’ll update as soon as autumn dates for Changdeokgung Moonlight tours are announced!
Gyeryong World Military Culture Expo | 계룡세계군문화엑스포
Festival Dates: September 17th – 21st, 2025
Address: 16, Jeongjang-ri, Gyeryong-si, Chungcheongnam-do | 충청남도 계룡시 신도안면 정장리 16
In Korea in September, South Korea will host a World Military Expo in the city where South Korea’s Army, Air Force and Navy are all headquartered. At the Gyeryong World Military Culture Expo, you can watch performances by military bands from around the world, see a military parade, or even climb Mount Gyeryong.
This is an international event that attracts nearly 1.3 million visitors, who are into all things military. Learn more here.
Busan International Film Festival (BIFF) | 부산국제영화제
Festival Dates: September 17th – 26th, 2025
Address: 120, Suyeonggangbyeon-daero, Haeundae-gu, Busan | 부산광역시 해운대구 수영강변대로 120
Busan is always an amazing place to visit, but head there from in mid September, and you’ll find some extra special things to do, because the Busan International Film Festival is on!
Busan is always worth a visit © Kim Sangseok, Korea Tourism Organization
This is the biggest film festival in Asia, attracting hundreds of thousands of cinemaphiles, celebrities, and directors to the city, to screen hundreds of films from all over the world. Learn more here.
Geumsan World K-Insam Festival | 금산세계인삼축제
Festival Dates: September 19th – 28th, 2025
Address: 30, Insamgwangjang-ro, Geumsan-gun, Chungcheongnam-do | 충청남도 금산군 금산읍 인삼광장로 30
The Geumsan Insam Festivals is rooted in a 1,500 year old tradition of giving thanks to the mountain god who bestowed a humble farmer with gingeng to help heal his sick mother. Now in its 43rd year, this is one of the most popular festivals in Korea in September.
At the festival, try your hand at harvesting ginseng or drink some ginseng-infused wine. You can also enjoy traditional performances like the Geumsan Nongak and Nongbaukkeusigi. More details here.
Seoul Drone Show | 드론 라이트 쇼
Festival Dates: 2025 TBA, Saturdays, September 21st – October 26th last year
Address: 139, Gangbyeonbuk-ro, Gwangjin-gu, Seoul | 서울특별시 광진구 강변북로 139 (자양동)
The Drone Light show starts its second run for the year, this September in Korea. This is one of autumn’s most popular events, with 1000 drones lighting up the night sky above Seoul.
The Seoul Drone show is free! © Seoul Metropolitan Government/Penta Press
This is a totally free event taking place at Ttukseom Hangang Park. Check full details here.
Jeongseon Arirang Festival | 정선아리랑제
Dates: September 25th – 28th, 2025
Address: Bongyang-ri, Jeongseon-gun, Gangwon-do | 강원도 정선군 정선읍 봉양리
The Korean folk song Arirang was registered on UNESCO’s Intangible Cultural Heritage of Humanity list in 2012, and the mournful Jeongseon version is its oldest, dating back over 600 years.
At the Jeongseon Arirang Festival, you can hear many versions of Arirang from different regions, play traditional games, and watch a parade. Don’t miss the “Arirang Gilnori” – a massive performance of Arirang by over 1,600 people!
Hanseong Baekje Cultural Festival | 한성백제문화제
Festival Dates: September 26th – 28th, 2025
Address: 326 , Olympic-ro, Songpa-gu, Seoul | 서울특별시 송파구 올림픽로 326 송파구청
The Hanseong Baekje Cultural Festival takes place at Olympic Park at the end of September in Korea. Events centre around the remnants of the Baekje era Mongchontoseong Fortress, and features folk performances, musicals, family concerts, and activities.
There’s a lot to see and do at and near Olympic Park in Seoul.
I’ve attended this one with my daughter a few times, and there’s a lot of fun free and paid activities for children.
Head there between 10AM and 7PM to take advantage of them.
LOTTE WORLD TOWER | The Seoul Sky Observatory takes up the top 8 floors of the Lotte World Tower – the tallest building in Korea. Head to the top for panoramic views of Seoul you can’t get anywhere else. Pick up advance tickets.
Seosan Haemieupseong Fortress Festival | 서산해미읍성역사체험축제
Festival Dates: September 26th – 28th, 2025
Address: 143 Nammun 2-ro, Seosan-si, Chungcheongnam-do | 충청남도 서산시 남문2로 143 해미읍성
Seosan is one of those relatively unknown cities, with a surprising amount of stuff to see and do – including a 600 year old fortress called Haemieupseong, where you can enjoy a festival during September in Korea.
Haemieupseong Fortress in Seosan is 600 years old.
After you’ve enjoyed the traditional music performances, parade, and fireworks at the festival, head over to Ganworam Hermitage – a unique seaside temple that gets stranded on an island at high tide.
Check festival details here (Korean only).
Seoul International Fireworks Festival | 서울세계불꽃축제
Festival Dates: September 27th, 2025
Address: 330, Yeouidong-ro, Yeongdeungpo-gu, Seoul | 서울특별시 영등포구 여의동로 330
The Seoul International Fireworks Festival is a huge event that sees a million people head to Yeouido Hangang Park area to see an epic fireworks show. This year, Korea, USA, and Japan will participate in the festival.
The Fireworks Festival is one of Seoul’s biggest events in October © Park Sang-hoon, Korea Tourism Organization
This is one of the most anticipated events in Korea during September, with people staking out a spot the day before. The crowds should not be underestimated. Attend at your own risk.
Andong Mask Dance Festival | 안동국제탈춤페스티벌
Festival Dates: September 27th – October 6th, 2025
Address: 239, Yuksa-ro, Andong-si, Gyeongsangbuk-do | 경상북도 안동시 축제장길 200 탈춤공연장
If cultural travel is your thing, the Andong Mask Dance Festival is the perfect event for you to attend in Korea during September. This festival takes place near the UNESCO World Heritage designated Andong Hahoe Village, which is totally worth a visit on its own.
Enjoy the mask dance festival in Korea in September © Kim Jiho, Korea Tourism Organization
Aside from performances of Korea’s mask dance drama (intangible cultural heritage), and other mask dances from around the world, there are experiential programs, mask related competitions and a ton of food stalls to stuff yourself at.
Suwon Hwaseong Culture Festival | 수원화성문화제
Festival Dates: September 27th – October 4th, 2025
Address: 825, Jeongjo-ro, Paldal-gu, Suwon-si, Gyeonggi-do | 경기도 수원시 팔달구 정조로 825 (남창동)
There’s actually a lot happening near Suwon Hwaseong Fortress this month including media arts installations on the fortress walls, a Suwon Lantern Festival, and traditional performances and experience programs.
Suwon Hwaseong Fortress is UNESCO World Heritage © Live Studio, Korea Tourism Organization
Starting every September in Korea at the UNESCO World Heritage Suwon Hwaseong Culture Festival, you can enjoy a Citizen’s Parade, traditional performances, Guard’s Ceremony, and simultaneous Media Art, and Food Culture Festivals.
I checked this out a few years ago, and in my opinion, it’s a can’t miss event. It’s truly spectacular with so much to see and do!
There are a number of great events in Suwon in autumn.
Do not miss the Reenactment of King Jeongjo’s Tomb Parade. This is one of Korea’s largest national events, traveling 59.2 km from Changdeokgung Palace in Seoul to Yeungneug Tomb in Suwon on September 28th, 2025.
For media art – head there from September 27th – October 12th!
SUWON STARFIELD LIBRARY + UNESCO HWASEONG FORTRESS | Well! Suwon has become quite the hotspot for must-see places and events. See them easily on this affordable VIP tour of the city’s best attractions! Check full details here.
Great Baekje Festival | 백제문화제
Festival Dates: 2025 TBA, September 28th – October 6th last year
Address: 135, Baekgang-ro, Buyeo-gun, Chungcheongnam-do | 충청남도 부여군 백강로 135
The 71st Great Baekje Festival takes place in the old Baekje capitals in Chungcheongnam-do. This festival promises to be totally epic, with multiple large scale parades, exhibitions, performances, and events staged at UNESCO World Heritage sites in Gongju and Buyeo.
Gongsanseong is a treasure of the Baekje Dynasty.
I checked out this festival last year in Buyeo, Gongju, and Iksan – and it did not disappoint. I definitely need to head back again, because there was so much to see and do, I barely cracked the surface.
There are UNESCO sites to explore in Iksan.
I’ve been to Gongju at least 3 times also, and I highly recommend it. It’s a wonderful place to visit in Korea that’s sadly overlooked. with so much to see, do, and explore.
Gangnam Festival | 강남 페스티벌
Festival Dates: 2025 TBA, September 26th – 29th last year
Address: Coex K-POP Square, Gangnam Station, Garosu-gil, Throughout Gangnam-gu
The Gangnam Festival returns to Korea in September, with a K-pop Concert on Yeongdong-daero street outside of Starfield Coex Mall. Past concerts have featured Psy and other K-pop idols. Gangnam Style NEVER gets old. Am I right, or am I right?
Gangnam is full of city lights and skyscrapers.
If you didn’t get tickets to the concert, don’t fret. There’s a ton more to do at the festival, including a fashion festa, street performances, night movies, K-culture zone and much more. Get all the details here.
September in Korea | What to Wear
September in Korea is a shoulder month between summer and autumn. The weather can change quickly from hot to windy and cool this month, so it’s best to be prepared with multiple layers and weights of clothing to deal with the changing conditions.
By the end of September in Korea, you’ll want long sleeves and pants.
At the beginning of the month, temperatures are still relatively high, the sun is strong, and there’s some possibility of rain. I’m comfortable in shorts and t-shirts, even in the evenings, but I run pretty hot. Most locals are wearing jeans, leggings, skirts, long-sleeved shirts, and lighter weight sweaters, jackets, and windbreakers by the start of September in Korea.
By the end of the month (or even earlier), it’s cooled down enough that shorts and sandals would feel strange. Travellers from tropical climates would probably find it chilly, especially at night.
You’ll log thousands of steps a day, when visiting Korea. Comfortable shoes are a must © Korea Tourism Organization
You’ll log a lot of miles while exploring Korea, so comfortable shoes are a must. A quality pair of sneakers or running shoes will save your feet when tackling all the stairs and steps in Seoul.
Tips for What to Wear in Korea in September
Korea in September is mostly very green.
Korea in September | Packing List
Here’s a rough guideline of items to pack for the Korea weather in September. Keep in mind that this is a shoulder month, and you’ll need warmer items if you’re traveling to Korea in the latter half of September.
Bring from home
- travel documents: passport, itineraries, hotel reservations, plane tickets, travel visas, insurance
- international driver’s license if you plan to rent a car
- adaptor / plug
- t-shirts, lightweight sweaters, hoodies, cardigans
- jeans, trousers, leggings
- shorts, capris
- skirts or dresses
- light jacket, windbreaker or shell
- sunglasses, eyeglasses, contact lenses
- deodorant, feminine hygiene items
- comfortable shoes for lots of walking
- any special medications you need
Buy in Korea
- umbrella if it rains / parasol
- disposable air pollution / medical masks
- batteries / charging cables (super cheap at Daiso)
- skincare products like sunscreen (high quality and cheap in Korea!)
- eyeglasses and contact lenses can be purchased just by walking into a store (a free eye test will be provided)
- birth control can be purchased over the counter, without a prescription (but all brands may not be available)
Get ready for some wonderful light in Korea in September.
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Korea in September: Essential Info and FAQs
All ready for the perfect trip to Korea in September? What have you got planned?
senangsenangyuks
wow, yeash yeash South Korea in September is pleasing.
Love the photographs. <3
shelley
September is SUCH a relief after summer. I feel like I’m alive again. Ha!