SeasonMapPyeongchang weather in September
South Korea
September in Pyeongchang: nice, soaked, with clean air — not the time — 11 rainy days.
#10 of 12 months in Pyeongchang · #1374 of 1383 destinations to visit in September · comfort 15/100 (tier F)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Pyeongchang in September
No notes yet. Open Pyeongchang on the map to add the first one.
Pyeongchang climate normals — September
| Daytime high | 24°C / 75°F | 😎 nice |
|---|---|---|
| Nighttime low | 17°C / 62°F | |
| Rainfall | 169 mm / 6.6 in | ⛈ soaked |
| Rainy days | 11 days | |
| Humidity | 80% | 💦 very humid |
| Dew point | 16°C / 62°F | |
| Sunshine | 7.6 h/day | |
| Daylight | 12.4 h | |
| Wind | 13 km/h / 8 mph | |
| Air quality (US AQI) | 48 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Pyeongchang in September
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
BusyChuseok in South Korea, school holidays in 2 of the markets that fill it(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Pyeongchang's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Toughest weatherPyeongchang's weather peaks December–February, best around January.
Best weatherFair weatherToughest weather
What's on in Pyeongchang in September
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Nature
Buckwheat flowers at Bongpyeong
25 Aug – 15 Sep · usuallyWildflowers & bloomsThe fields around Bongpyeong go white for two or three weeks at the end of summer, the setting of the short story every Korean schoolchild reads. A festival is usually timed to it.
Nearby, and something's on
Within 300 km of Pyeongchang — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Pyeongchang?
Pyeongchang in September — FAQ
- Is September a good time to visit Pyeongchang?
- September in Pyeongchang: nice, soaked, with clean air — not the time — 11 rainy days. It ranks #10 of 12 months for Pyeongchang on SeasonMap's comfort score (15/100).
- What is the weather like in Pyeongchang in September?
- In September, Pyeongchang averages a daily high of 23.9°C and a low of 16.5°C, with about 168.5 mm of rain over roughly 10.8 rainy days.
- What is the air quality in Pyeongchang in September?
- Pyeongchang has a mean US Air Quality Index of about 48 in September.
Other months in Pyeongchang
Compare Pyeongchang in September
Warmer or cooler than Pyeongchang in September
Similar destinations in East Asia — September
Within 300 km: Seoul's Chuseok on 24–26 Sep, and Busan's Chuseok on 24–26 Sep.