Things to do in Jeju in September

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Overview

September is a great time to visit Jeju. The weather is usually pleasantly warm with a gentle breeze, with temperatures ranging from 72—76°F (22—25°C). There are plenty of events to check out and activities to try in Jeju during this time. Some of our top recommendations: attend the Jeju Chuseok Festival, go snorkeling at Seongsan Ilchulbong, visit the Jeju Folk Village Museum, and more!

Jeju has plenty to offer for visitors of all ages and interests. In this article, we tell you the top things to see and do for your September trip to Jeju. Get inspired by the events, activities, attractions, and experiences unique to September. We’ll let you know where to explore events based on your interests, whether that’s food, culture, art, music, sport or others.

We’ll let you know everything you need to prepare for the weather in Jeju in September. Learn about what to wear and pack for your trip, the average temperatures throughout September, temperature changes from morning to evening and much more.

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Best events and things to do in Jeju in September

Top experiences in September
Attend the Jeju Chuseok Festival
Chuseok is a major harvest festival in Korea, and Jeju Island hosts its own unique celebrations in September. The Jeju Chuseok Festival features traditional rituals, folk games, and cultural performances that highlight the island's customs and traditions. You can participate in activities such as making songpyeon (rice cakes), traditional archery, and tug-of-war competitions. It's a great opportunity to immerse yourself in the festive spirit and learn about the significance of Chuseok in Korean culture.
Go snorkeling at Seongsan Ilchulbong
Seongsan Ilchulbong, also known as Sunrise Peak, is a volcanic tuff cone that offers excellent snorkeling opportunities in September. The clear waters around the peak are teeming with marine life, making it a popular spot for snorkeling and diving. You can explore colorful coral reefs, encounter tropical fish, and even spot sea turtles in their natural habitat. It's a memorable experience that allows you to appreciate the underwater beauty of Jeju Island.
Visit the Jeju Folk Village Museum
The Jeju Folk Village Museum offers a fascinating glimpse into the island's traditional way of life. In September, the museum hosts special events and demonstrations that showcase traditional crafts, music, and dance. You can explore the well-preserved thatched-roof houses, stone walls, and agricultural tools that are characteristic of Jeju's rural heritage. It's a great opportunity to learn about the island's rich cultural history.
Take a leisurely bike ride along the Jeju Olle Trail
The Jeju Olle Trail is a network of walking paths that crisscross the island's coastline, offering stunning views of the ocean and countryside. In September, the weather is perfect for a leisurely bike ride along the trail, allowing you to soak in the natural beauty of Jeju Island at your own pace. You can stop at charming seaside villages, enjoy local cuisine, and take in the peaceful atmosphere of the island.
Explore the Manjanggul Lava Tube Cave
The Manjanggul Lava Tube Cave is a UNESCO World Heritage site and a must-visit attraction on Jeju Island. In September, the cave is less crowded, allowing you to explore its unique rock formations and underground tunnels at your own pace. The cool temperatures inside the cave provide a welcome escape from the heat outside. It's a fascinating experience that offers insight into the island's volcanic history.
Visit the Jeju Stone Park
September is a great time to visit the Jeju Stone Park, a unique outdoor museum that showcases the island's volcanic rock formations. The park features various sculptures, walking trails, and educational exhibits that highlight the geological significance of Jeju Island. The cooler weather in September makes it more enjoyable to explore the park and learn about the island's natural wonders.
Go hiking on Hallasan Mountain
September is a great time to hike Hallasan Mountain, the highest peak in South Korea. The weather is cooler and the autumn foliage starts to appear, creating a stunning backdrop for your hike. The trails are well-maintained and offer breathtaking views of the island. Whether you're an experienced hiker or just looking for a leisurely stroll, Hallasan Mountain has something for everyone.
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Holidays in Jeju in September
September
  • Chuseok (September 1618)
Other notable holidays
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Weather in Jeju in September

Temperatures on an average day in Jeju in September

The average temperature in Jeju in September for a typical day ranges from a high of 76°F (25°C) to a low of 72°F (22°C). Some would describe it as pleasantly warm with a gentle breeze.

For comparison, the hottest month in Jeju, August, has days with highs of 82°F (28°C) and lows of 79°F (26°C). The coldest month, January has days with highs of 47°F (9°C) and lows of 42°F (6°C). This graph shows how an average day looks like in Jeju in September based on historical data.

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Historical temperature average in September
76°F
highs
72°F
lows

General weather summary

Pleasantly warm with a gentle breeze
Feels like
33%
Chance of rain
0.228 in
Amount
14.9 mph
Wind speed
77%
Humidity
12.4 hrs
Daylight length
6:15 AM
Sunrise
6:41 PM
Sunset
53%
Cloud cover
Sleeveless shirt
What to wear
What to wear in September
With an average high of 76°F (25°C) and a low of 72°F (22°C), it generally feels pleasantly warm with a gentle breeze. There might also be a small chance of rain. With that in mind, most people would dress in something very light like a sleeveless shirt
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Best attractions for Jeju in September

Besides the array of exciting events and activities Jeju has to offer for travelers in September, we want to remind you of the classic attractions in Jeju that are great to visit at this time of the year as well! You can’t miss these iconic landmarks, local favorites, and places rich with cultural heritage. We hope to give you insights and inspiration into the best things to see and do to make the most of your visit. Here is a list of our top attractions in Jeju for September.
Manjanggul Lava Tube
1. Manjanggul Lava Tube
4.2
(11849)
Nature & Parks
Nature preserve
Long lava tube with unique formations, including stalactites & stalagmites, plus bats & insects.
Udo
2. Udo
4.4
(356)
Island
Nature & Parks
Small island accessible by ferry known for a coral beach, cafes & bicycle & scooter rentals.
Hallasan National Park
3. Hallasan National Park
4.7
(3614)
National park
Nature & Parks
National park with a large mountain, featuring many alpine plants, hiking trails & sweeping views.
Mysterious Road
4. Mysterious Road
3.8
(3723)
Sights & Landmarks
Points of Interest & Landmarks
Offbeat attraction with the optical illusion of a downward-sloping hill that looks like an incline.
Yongduam Rock
5. Yongduam Rock
3.9
(16090)
Scenic spot
Nature & Parks
Popular oceanfront volcanic rock formation in the shape of a dragon's head.
Dongmun Traditional Market
6. Dongmun Traditional Market
4.0
(34016)
Market
Shopping
Longtime indoor market packed with stalls selling fresh fish, produce, clothing & general goods.
Seongeup Folk Village
7. Seongeup Folk Village
3.8
(3389)
Sights & Landmarks
Battlefields
Old-fashioned village featuring simple homes built of thatch & lava rock, with iconic stone statues.
Hamdeok Beach
8. Hamdeok Beach
4.5
(11471)
Beach
Outdoor Activities
Long white-sand beach featuring an arched bridge, a lighthouse & shower facilities.
Hallim Park
9. Hallim Park
4.4
(5708)
Botanical garden
Nature & Parks
Popular destination with a variety of scenic gardens, two caves & a small zoo, plus a folk village.
Hyeopjae Beach
10. Hyeopjae Beach
4.6
(7536)
Outdoor Activities
Beaches
Tranquil stretch of white sand known for its clear, turquoise water & views of Biyangdo Island.
Ecoland
11. Ecoland
4.3
(8526)
Theme park
Water & Amusement Parks
Charming park offering ambling old-fashioned train rides through various gardens & picnic areas.
Sangumburi
12. Sangumburi
4.4
(3645)
Scenic spot
Nature & Parks
Tranquil, scenic landscape featuring a long walkway leading to views of a sizable crater.
Bijarim Forest
13. Bijarim Forest
4.6
(4023)
Arboretum
Nature & Parks
This natural monument consists of thousands of nutmeg trees ranging from 500 to 800 years old.
Kimnyoung Maze Park
14. Kimnyoung Maze Park
4.9
(8)
Bus stop
Nature & Parks
Jeju Stone Park
15. Jeju Stone Park
4.4
(1561)
Park
Nature & Parks
Park with volcanic stone sculptures related to the culture & history of Jeju, plus a museum & shop.
Spirited Garden
16. Spirited Garden
4.2
(1531)
Nature & Parks
Cafe
With 7 small gardens & native bonsai, this picturesque spot also features a 3-story cafe.

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