Korea in July 2026: Weather & Festival Guide From a 15-Year Expat

The spring flowers of May and relatively comfortable weather of June are but a distant memory in Korea in July.

This is the peak of summer in all its hot, humid, monsoon glory. As someone who’s lived through 15 sweaty, sticky summers here, I know firsthand that July can be a difficult time to travel to South Korea if you aren’t prepared. Learn how to navigate the challenges properly, and it’s also a month packed full of incredible festivals, activities, and stunning places to go.

In this guide, you’ll learn:

• what the weather is like during July in Korea
• the Seoul weather in July and other major cities and tourist hotspots, including Busan, Gangneung, and Jeju Island
• the best summer festivals to attend around the country in July
• what to wear and the best things to pack for a successful trip to South Korea in July

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Visiting Korea in July

The July weather in Korea is challenging. There’s no getting around that fact. But Koreans don’t let the heat, humidity, and rain stop them from getting out and enjoying all the country has to offer, and you shouldn’t either.

Equip yourself with a personal fan, strong SPF, and an umbrella / parasol, and hit the streets. Because some of South Korea’s best festivals happen in July, huge water parks open around the country, and there are gorgeous beaches to enjoy on every single coast.

Despite the less than ideal weather, July in Korea is still a busy time for travel, with summer vacations starting around the world and diaspora headed back for a taste of home.

If you’re planning your visit to Korea in July, it’s wise to book day tours and accommodation in Seoul as early as possible… especially if you’re on a limited budget (or want a pool!)

South Korea Weather in July: Temperature & Rainfall

The Korea weather in July is hot, sticky, and downright uncomfortable. The average high temperatures range in the high 20s°C | low 80s°F, and there are definitely days in the low 30s°C | high 80s°F and higher.

However, it’s not the high temperatures that make this month a test of endurance. It’s the incredible humidity. July is the most humid month of the year, with an average humidity of nearly 80%.

Make sure to stay hydrated, take breaks, and wear sunscreen to avoid heat exhaustion. Prepare to sweat. A lot!

July Weather in Korea: Breakdown by Major Cities

Seoul Weather in July: Average Temperatures and Humidity

The Seoul weather in July feels very hot and muggy. The average temperature in Seoul increases just a couple degrees over the course of the month, from 27°C | 81°F to 29°C | 84°F, but you can also expect at least a few days in the mid-30s°C | 90s°F.

It stays quite warm at night – so much so that even breezes feel hot. There’s little to cool things off, except for the summer rains, which bring a much needed respite from the high humidity that’s characteristic of Korea in July.

July in Seoul is usually the month with the most rain and cloud cover, totalling nearly 400-mm of precipitation by month-end. Despite the grey skies though, the UV index is at its highest. Make sure to use sunscreen, wear a hat, or carry a parasol, as you’ll burn very easily without realizing it.

Check out my tips on how we Seoulites survive the hot and humid conditions.

Busan Weather in July: Ocean Temperatures and Swimming

Busan is located on the southeastern coast of Korea, so it’s slightly cooler than landlocked Seoul in July. It has average daily temperatures of 25°C | 77°F to 29°C | 84°F. In Busan, the Korea weather in July is quite wet, with an average of 13 days of rain, totalling approximately 200-mm of precipitation.

If it’s not raining, July in Korea is definitely the month to relax at one of the city’s many beaches, take a ride on the super-cute Sky Capsule Busan at Haeundae Blueline Park, or enjoy incredible views at the top of Busan Haeundae x the Sky.

Gangneung Weather in July: East Coast Beaches

The Korea weather in July on the East Coast beaches is slightly cooler than in the interior. Gangneung in July has average daily temperatures ranging from 25°C | 77°F to 28°C | 82°F, with an average humidity of 82%.

It can fall to as low as 20°C | 68°F at night time. If it’s windy, it can feel a bit chilly, so prepare with a light windbreaker or hoodie if you’re prone to feeling cold.

Gangneung is similar to the rest of Korea in July weather-wise, with about 15 days of rain, constant cloud cover, and a high UV index. Precipitation totals an average of around 235-mm, over the course of the month, but if it’s a particularly wet season, there can be as much as 400-mm of rain.

Jeju Island Weather in July

In July, Jeju has average high temperatures of 26°C | 79°F to 30°C | 86°F, but it can feel a lot hotter. With humidity levels reaching 78%, Jeju has a “real feel” temperature hovering around 35°C | 95°F. There’s about 12 days of rain on Jeju Island in July, totalling around 240-mm of precipitation.

When it’s not raining, the sea is a wonderful 25°C | 77°F that’s perfect for swimming. However, heat exhaustion and sunstroke are real possibilities, so be sure to stay in the shade as much as possible, drink lots of water, and slather on that sunscreen if you’re at the beach.

Korea in July | Typhoons

July marks the peak of South Korea’s monsoon season (which can last until September). Locally known as Jangma (장마), it can bring unpredictable daily downpours to some parts of Korea.

Typhoons have affected us pretty regularly over the last few years, but few of them have been deadly. It can however, mean high winds, flash floods, mudslides, and property damage – particularly in the southern regions of the country.

If a typhoon should hit Korea in July, it’s best to stay indoors, shut the windows tight and avoid places where there could be flooding or mudslides.

Things to Do in Korea in July

July is definitely not the month to fight the weather — it’s the month to work with it. The smartest Korea itineraries mix outdoor highlights in the early mornings or late at night, with indoor or water-based activities for when the heat and rain peak in the afternoons.

Chase the Lotus Flowers

July is peak lotus season in Korea, and it’s worth planning around.

Semiwon Garden in Yangpyeong is one of the most spectacular displays in the country, with pink and white lotuses spread across the water with Bukhansan as a backdrop on clear days. It’s the one I get to absolutely every July.

If you can’t get out of Seoul, Bongeunsa Temple has potted lotus flowers throughout summer. And if you want to get off the beaten path, the Buyeo Seodong Lotus Festival is another standout, set against the ruins of the Baekje kingdom.

Cool Off in a Mountain Stream

Koreans have been escaping the city heat in mountain valleys (계곡, gyegok) for generations, and July is when this tradition is at its peak.

Streams in the mountains around Seoul — Gapyeong, Yangpyeong, and the areas around Bukhansan — fill up with families and groups setting up portable grills and wading in the cold water. It’s one of the most local summer experiences you can have.

I recommend heading out to Namhansanseong Fortress. This area is full of cafes, with gyegoks directly behind them AND there’s a UNESCO World Heritage Fortress to discover too.

Hit the Han River Swimming Pools

Seoul’s Han River parks open their outdoor swimming pools in June and July, and they’re a fantastic way to spend a few hours.

The admission is incredibly cheap, it’s right on the river, and you can enjoy Korean ramyeon and other delicious street foods, surrounded by locals. Just keep in mind that the Jamwon Hangang Swimming pool is closed this year for renovations.

Go to the Beach

Every coast is open and in full swing in July — the best beach are on Korea’s East Coast, South Coast and on Jeju Island of course. But if you want to stay closer to the capital, here are 6 beaches worth checking out on a day trip from Seoul.

Haeundae in Busan gets extremely crowded but has the full beach town atmosphere. For something quieter, East Coast beaches like Anmok or Jeongdongjin are worth the short KTX ride. Book tix here.

Plan for Rainy Days

July in Korea will give you at least a handful of full rain days, and probably more, given that this month is peak monsoon. Having a plan matters.

Seoul’s jjimjilbangs, the National Museum of Korea, Lotte World Adventure, and the massive underground shopping malls in Gangnam and near Express Bus Terminal are all excellent options when the monsoon hits hard.

July also has some of Korea’s most famous festivals — from lotus gardens to a festival full of mud. See the full lineup in the section below.

July in Korea: The Best Festivals and Events

From serene lotuses, to a massive water gun battle on the streets of Seoul, there are a number of incredibly popular festivals happening in Korea in July. Check out these guides if you’re visiting in other months.

• 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 August: Summer Vacation for EVERYONE!
• Korea in September: Autumn Relief
• Korea in October: Full on Fall Foliage
• Korea in November: Autumn to Winter Transition
• Korea in December: Christmas Lights Galore

Hueree Summer Hydrangea Festival | 휴애 여름 수국축제

Hueree Natural Park has beautiful gardens, seasonal festivals, and a number of experiential activities. This is one of the most popular places to visit in Jeju for locals and tourists alike.

Semiwon Lotus Flower Festival | 세미원

Water lilies, including lotus flowers bloom beautifully during summer in Korea. The Semiwon is a picturesque spot located near Dumulmeori, where the heads of the Bukhan and Namhan Rivers meet.

At the Semiwon Garden, you can wander through the serene garden, surrounded by hundreds of different types of water lilies. If you’re looking for more activity at the festival, try your hand at making handkerchiefs and fans out of lotus leaves.

Daegu Chimak Festival | 대구치맥페스티벌

Could Korean fried chicken washed down with an ice cold beer be the best food and drink combo in history? I think it’s possible – especially in the steamy hot weather of July in Korea.

You can test out the theory yourself at the Daegu Chimac Festival, while dancing your heart out, chicken wing in one hand, beer in the other.

PS: If you didn’t know already – CHI = Chicken and MAK = Maekju (the Korean word for beer)

Garden of Morning Calm Rose of Sharon Festival | 아침고요수목원 무궁화 축제

Hydrangea and the Rose of Sharon bloom in Korea in July, and the Garden of Morning Calm is one of the best places near Seoul to see these gorgeous summer flowers.

Gawking at 250 varieties of Korea’s national flower – the Mugunghwa (Rose of Sharon) at the garden juuuust might make you forget the heat.

In combination with places like Nami Island, Alpaca World, and the Gangchon Rail Bike, the Garden of Morning Calm is one of the most popular day tours from Seoul, and one well worth taking.

Bucheon International Fantastic Film Festival | 부천 국제판타스틱영화제

If your idea of fun on a steamy July night in Korea is getting scared out of your wits, then the Bucheon International Fantastic Film Festival (BiFan) is for you. It’s all about Asian horror, thriller, mystery and fantasy films.

Get more details here.

Buyeo Seodong Lotus Festival | 부여서동연꽃축제

Buyeo is one of the former capitals of the Baekje Kingdom, along with Gongju City. Both cities are worth a visit, but head to Buyeo during July in Korea, when lotus flowers are in full bloom for summer. The Buyeo Seodong Lotus Festival celebrates the romance of King Mu and Princess Seonhwa.

Festival events include performances of this historical love story, as well as hands-on programs like lotus flower origami classes, soap making, candle-making sessions, and a LED lantern exhibition.

WATERBOMB Seoul 2026 | 워터밤

The WATERBOMB Festivals kick off their nationwide tour of Korea in July. For the summer 2026 circuit, the massive Waterbomb Seoul festival takes place from July 24th to July 26th, 2026 at KINTEX. Other major regional stops follow shortly after, including Waterbomb Busan from August 7th to August 9th, 2026, and the highly anticipated Waterbomb Sokcho on August 22nd, 2026.

All of the WATERBOMB events feature live performances from K-POP stars and DJs, a tropical lounge, and massive exploding water cannons. However, the highlight of WATERBOMB is defintiely a crazy water gun battle where you fight along your favourite celebs.

WATERBOMB is a 19+ event, that’s definitely not suitable for young children, as you can see from the video (don’t watch if flashing lights bother you). Check the line-up and get tickets here.

Taebaek Sunflower Festival | 태백해바라기축제

Wanna get lost in a sea of bright yellow sunflowers? Well you can do it easily at the Taebaek Sunflower Festival in Guwau Village. It’s the largest sunflower patch in all of Korea.

Boryeong Mud Festival | 보령머드축제

Every year, thousands of people flock to Daecheon Beach in Chuncheongnam-do to coat themselves in nutrient-rich Boryeong mud by day, and party to K-pop and EDM at night. I mean, you can’t really argue with festival events like giant mud baths, mud mazes, mud painting, and mud slides, can you?

I’m gonna go out on a limb here, and say that this is probably THE most popular and famous festival for international visitors to Korea in July. Join a day tour here.

Bongwha Sweetfish Festival | 봉화은어축제

Sweetfish are plentiful in Korea in July and August, and the most delicious can be found on the banks of the Nakdonggang and Seomjingang Rivers, near Bonghwa in Gyeongsangbuk-do Province.

Wade into the refreshing river water and try catching these slippery creatures with traditional nets, or even with your bare hands at the Bonghwa Sweetfish Festival. Cap off the day by grilling up your fresh catch on a charcoal bbq.

Best Summer Tours in Korea

Summer is the perfect time to take advantage of the scorching heat with activities at water parks, beaches, and on boats. From gorgeous lotus flowers to a beach full of mud, there’s a ton of unique events and festivals designed just for the hot, hot summer months in Korea.

Here’s a quick summary, so you can compare all summer tours and festivals at a glance.

Must-Try Korean Summer Foods to Beat the Heat

Koreans have a unique philosophy for surviving the intense July weather called Iyeol-chiyeol (이열치열), that involves steaming hot dishes designed to “fight fire with fire.”

So, whether you want to cool down instantly (this is the camp I’m in) or sweat it out like a local, make sure to seek out these seasonal dishes during trip to Korea in July.

Mul-Naengmyeon (물냉면): Chewy buckwheat noodles served in an icy, tangy broth. It’s often topped with slices of cucumber, Korean pear, and a hard-boiled egg. It is the ultimate antidote to a sticky afternoon in Seoul, and it has definitely saved my life on more than one hot and sweaty afternoon!

Samgyetang (삼계탕): This is probably the most classic iyeol chiyeol meal around, featuring a whole young chicken stuffed with ginseng, garlic, and glutinous rice in a boiling hot soup. Koreans traditionally line up around the block to eat this on Sambok (the three hottest days of summer) to replenish their stamina. I recommend Tosokchon – it is delicious!

Kongguksu (콩국수): A refreshing, savory noodle dish served in a cold, creamy broth made entirely from ground soybeans. I can’t really say that I enjoy this meal, but it IS a beloved summer-only specialty that’s completely vegetarian-friendly.

Bingsu (빙수): This is the ultimate Korean summer dessert. A mountain of shaved milk ice is traditionally topped with sweet red beans (Patbingsu), but modern versions feature fresh mangoes, strawberries, or matcha ice cream. Try it at Sulbing. My favourite there is the injeolmi bingsu.

What to Wear in Korea in July

To best try to survive Korea’s weather in July, lightweight clothing that wicks sweat is the name of the game. Breezy linens, technical fabrics, and clothing lines like Uniqlo’s Airism are made specifically to deal with a hot, muggy climate.

Since there’s also potentially a ton of rain in Korea in July, waterproof running shoes or quick-dry clothing could be useful. If you choose to wear sandals or flip-flops, choose ones with a good grip. A lot of streets in Korea become very slippery in the rain.

Tips for What to Wear in Korea in July

1. July in Korea is insanely hot and humid. Cotton isn’t actually the best fabric to wear, since it holds moisture. It’s better to wear lightweight fabrics like linen or technical fabrics designed to wick sweat.

2. If you want to blend in at the beach, you’ll be most comfortable in a rash guard and shorts. That’s what most Koreans wear to the beach. However, if you’re more comfortable in a bikini at the beach, it wouldn’t be frowned upon.

3. It’s best to dress on the conservative side, if you don’t want to draw unwelcome attention. For women, a low neckline or bare shoulders will attract eyes, but a super short skirt or shorts won’t (go figure). For men, wandering around shirtless is a definite no-no.

What to Pack for Korea in July (and What to Buy When You Get There)

Here’s a rough guideline of items to pack for the Korea weather in July.

Korea in July: Monsoon Weather Secrets & Seasonal FAQ