South Korea in October 2026: Autumn Leaves Season Begin

October marks the middle of autumn in South Korea as well as the start fall foliage season for your perfect outdoors, from mountain hikes to city strolls, all bathed in crispy, sunny weather. Continue reading more about the October weather in Korea, tips as well as the autumn colors highlights to plan your October trip to South Korea.

South Korea Weather in October

October's weather in South Korea is about balance, when the summer heat fades out while still before the final arrival of the chilly winter breezes.

You can enjoy the best outdoor weather in October, with crispy and dry air, sunny days, clearer skys and pleasant warm daytime temperatures between 18 to 22℃ (64 to 72℉). Also, a quick drop to around 10℃ (50℉) after sunset.

The weather in October is quite stable in Korea, as typhoons move on and the rains begin to ease, clearer skies and impressive visibility take their place. While it's still wise to keep a just-in-case umbrella, be sure to bring sun protection and something to keep yourself hydrated.

	Temperature in October	Rainy Days
Seoul	10 to 20℃ (50 to 68℉)	about 4 days
Busan	14 to 22℃ (57 to 72℉)	about 7 days
Jeju Island	18 to 21℃ (64 to 70℉)	about 7 days

• October in Seoul brings crisp, dry autumn weather, best for city walks and nearby Bukhansan foliage viewing.
• Busan's weather stays slightly warmer in October, with cozy sea breezes that extend the waterfront strolling season.
• Jeju Island in October enjoys refreshing wide-open landscapes, ideal for hiking and scenic coastal drives.

South Korea Weather In October

How Warm is Korea in October

The average daytime temperatures hover around 15℃ (59 ℉), but under the sunshine (especially during outdoor activities), the perceived temperature often feels warmer and more comfortable, sometimes closer to 20℃ (68℉).

However, the warmth fades quickly after sunset, making a light jacket or sweater becomes useful for nighttime strolls and outdoor dinners.

What Clothes to Wear in South Korea in October

Heavy winter clothing is usually unnecessary in October, but layering is the key.

Light layers and shirts are still pleasant during the day, however, temperatures in October can shift quickly between warm afternoons and cool evenings.

Make your outfits include a (easy to put on and off) long-sleeve coat or light sweater paired with breathable pants or jeans for your outdoors and night.

Suggested Packing List for Korea in October

• Long-sleeve shirts, breathable tops, walking pants or jeans
• Light sweater, cardigan, or jacket for layering and evenings
• Comfortable walking shoes or sneakers
• Sunglasses, sunscreen, facial mist, and a hat for sunny afternoons

Is October a Good Time to Visit Korea

Absolutely yes. October is one of the best times to visit South Korea, which strikes the perfect balance between comfortable weather, scenic autumn beauty, and rewarding travel experiences for most kinds of travelers.

Korea weather in October is typically clear, dry, and comfortably cool for your long days of sightseeing. While the sea temperature is not as comfortable as September, almost every other outdoor activity becomes more enjoyable in October.

You can expect longer distance city walks and mountain hikes without without feeling overly hot or fatigued, more immersive hanok exploration with festivals, as well as the excellent visibility for the clear panoramic view and some of the best photography conditions. Most importantly, all these can be paired with the stunning fall foliage as your perfect background.

Which is Better, September, October & November

Simply speaking, you can benefit from September's prices, October's outdoor weather and November's peak fall foliage scenery. Check the detailed table below for your reference:

	September	October	November
Temperature Comfort	★★★★☆	★★★★★	★★★☆☆
Outdoors	★★★★☆	★★★★★	★★★☆☆
Crowd	★★★☆☆	★★★★☆	★★★★★
Cost	★★★☆☆	★★★★☆	★★★★★
Foliage Views	★★★☆☆	★★★★☆	★★★★★

Is Fall Foliage Season Peak in October in Korea

Partly, many of the northern and higher-altitude areas reach their fall foliage peak in late October, and other regions also see the changing colors from mid-October onward.

The overall fall foliage season in South Korea spans from late September into late November (and late October to early November usually the best time to see), with November often considered the broader peak nationwide.

However, timing varies by region, and mountainous regions such as Seoraksan National Park and areas around Seoul typically see their most vibrant colors from mid to late October. In contrast, southern destinations like Busan and Jeju Island usually peak slightly later, around early November.

In short, if your goal is to catch vivid and widespread autumn colors, traveling to Korea in mid-to-late October would be a better choice.

Where to Go in South Korea in October

Seoul

For a well-rounded experience, Seoul, a perfect mix of modern energy and traditional charm, is one of the best places to go in South Korea in October.

You can explore historic palaces like Gyeongbokgung Palace, stroll through Bukchon Hanok Village neighborhoods with hanbok, while shift to trendy districts filled with cafés and shopping.

With the mild autumn weather, it's also a great time for a Bukhansan hike, and take those colorful foliage and clear views as rewards. From this ideal base, an easy day trip to Hwaseong Fortress in nearby Suwon is also a good try.

Seoraksan

Seoraksan National Park is one of the top places to visit in October for nature lovers.

Supported by cool, comfortable weather, you can enjoy scenic hiking trails with vibrant red and orange leaves. Or take a cable car ride to Gwongeumseong Fortress to see the panoramic mountain views with minimal effort: an accessible choice for all types of travelers.

If possible, stop by Sinheungsa Temple for a peaceful break beneath the giant Buddha. Or just focus on those perfect angles to capture crystal-clear streams, waterfalls, and rocky valleys in their stunning autumn outfits.

Gyeongju

Known as "the museum without walls," Gyeongju is an unmissable destination if you are looking for a deeper dive into Korea's history.

The Daereungwon Tomb Complex and Cheomseongdae Observatory are perfect for leisurely walks, especially under crisp autumn skies. For a more relaxing pace, you can also rent a bike to explore those heritage sites at your own pace.

An one night stay here is also recommended, when the illuminated reflections of Donggung Palace and Wolji Pond becomes especially magical.

Jeju Island

Jeju in October combines seasonal beauty and a laid-back island outdoor adventure for your slow down vacation.

Beyond the mild weather and coastal views, one of the seasonal highlights in Jeju Island is the pink muhly grass fields. Make your way to Hueree Natural Park and Jeju Herb Dongsan, where soft pink cotton candy fields create dreamy photo spots across the coast.

You can continue hiking here with locals to climb South Korea's highest peak, Hallasan; down to the underground with lava tubes scattered across the island, and end your day with local cafés, sunset, and fresh seafood by the sea.

Travel Cost & Crowd in October in Korea

October is a popular travel season in South Korea, and you may encounter moderate to high travel costs, especially for flights and accommodations.

A key factor is Chuseok (Korean Thanksgiving, usually in late September or early October), which creates a peak domestic travel period when transportation tickets sell out quickly, prices rise, and popular destinations can feel crowded.

Crowds are still present outside the Chuseok holiday window, particularly in foliage hotspots, but generally more manageable than the peak season in November, with better availability and slightly lower prices.

• Early October: high costs & heavy crowds if meets Chuseok, and good news is that the Chuseok holiday falls on September 2026 & 2027
• Mid to late October: busy for fall foliage, but more balanced and easier to plan than November

Booking early is highly recommended for the best prices and availability. Feel free to contact us for your carefree autumn Korean trip planning.

Top Korean Festivals in October

• Dongnaeeupseong History Festival: A lively local festival where history comes to life through live-action musical performances, including traditional tug-of-war games, and you can enjoy an interactive, community-style atmosphere with plenty of cultural charm through its bustling street markets.
• Gimje Horizon Festival: One of Korea's best agricultural festivals, offering hands-on experiences like rice harvesting, threshing, and making traditional rice cakes (tteok). The day ends with fireworks and festive celebrations, giving a true taste of rural Korean life.
• K-Royal Culture Festival: Held across Seoul's royal palaces and a great way to immerse yourself in Korean history and culture. Experience Korea's heritage through royal ceremonies, traditional music and dance, hanbok experiences, and special night palace tours.