What to Wear in Korea in October 2026: Weather Guide & Packing List
Short answer: Pack layers. October in Seoul averages a high of about 20°C (68°F) and a low of about 9°C (49°F), so afternoons feel like a T-shirt day while mornings and nights need a light jacket. It gets cooler every week, so late October calls for one more warm layer than early October.
Hi from Korea! October is honestly my favorite month here. The summer humidity is gone, the sky is clear, and the mountains start turning red and gold. But it's also the month when I see the most travelers either shivering in a T-shirt at night or sweating in a puffer jacket at noon.
Here's a simple guide so you can pack right the first time.
Korea Weather in October at a Glance
| Time | Seoul temperature | What it feels like |
|---|---|---|
| Mid-October | about 21°C / 11°C | Warm afternoons, cool mornings |
| Around Oct 20 | about 19°C / 9°C | Crisp all day, jacket weather |
| Late October | cooler still | Chilly nights, first cold snaps |
| Rain | Rain falls on only about 1 in 5 days. Mostly dry and sunny. | |
The big thing to remember is the 10-degree gap between day and night. That's why layering matters more than any single warm piece.
What to Wear in Korea in October (By Situation)
1. City sightseeing during the day
A long-sleeve top or thin knit with jeans is perfect. Bring a light jacket you can tie around your waist or stuff in a tote bag. Koreans love trench coats this time of year, so you'll blend right in.
2. Evenings and nights out
Once the sun goes down, it cools fast. If you're heading to Han River parks, night markets, or a rooftop, put the jacket back on and add a scarf.
3. Hiking for autumn leaves
Mountains are colder and windier than the city, especially at the summit and early in the morning. Wear a windbreaker over a light layer and proper walking shoes.
👉 Planning to see the fall colors? Check my Korea autumn foliage guide for the best places and peak dates.
4. Jeju Island and the south
Jeju and Busan are a little warmer than Seoul, but Jeju is famously windy. A windproof jacket is more useful there than a thick sweater.
October Korea Packing Checklist
- Light jacket or trench coat for mornings and nights
- Thin knit or cardigan for easy layering
- Long pants (plus one pair of shorts if you visit in early October)
- Comfortable walking shoes, because Seoul has lots of hills and stairs
- Compact umbrella, just in case
- Scarf for chilly evenings
- Windbreaker for hiking or Jeju
- Lip balm and hand cream, since the air gets dry
Local Tips Most Travelers Don't Know
Forgot something? Don't worry. Convenience stores sell umbrellas, and Daiso and Olive Young have cheap basics like scarves, socks, and lip balm almost everywhere.
Check the air quality app. Some autumn days have fine dust. Locals check apps before going out and wear a mask on bad days. You can buy masks at any convenience store.
Watch the holidays. National Foundation Day (Oct 3) and Hangeul Day (Oct 9) are public holidays, so palaces, parks, and trains get busy. Book KTX tickets early if you're traveling around those dates.
[MY TIP: add a favorite local item or place, e.g. "My go-to October snack is roasted sweet potatoes from street stalls."]
Quick Summary
For Korea in October, think layers, not bulk: a T-shirt or thin knit for the afternoon, a light jacket for morning and night, and a windbreaker for the mountains. Pack one extra warm layer if you're visiting in late October.
Are you visiting Korea this October? Tell me which city you're heading to in the comments, and I'll share a local tip for it!
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