What is the weather like in Pyeongchang vs Seoul in September?

In September, Pyeongchang averages 25°C high / 16°C low with about 167 mm of rain; Seoul averages 28°C high / 19°C low with about 148 mm.

Pyeongchang vs Seoul in September

Seoul is the better pick in September — 75 vs 15 on SeasonMap's comfort score. Seoul is hot, rainy, muggy air, while Pyeongchang is warm, soaked, clean air.

Pyeongchang vs Seoul — September climate, side by side

	🇰🇷 Pyeongchang	🇰🇷 Seoul
Comfort score	15/100 (F)	75/100 (B)
Feels-like high	27°C	30°C
Avg high / low	25° / 16°	28° / 19°
Rainfall	167 mm	148 mm
Rainy days	11	9
Humidity	81%	79%
Air quality (AQI)	48	73

Monthly climate normals (ERA5 reanalysis). Comfort scores are SeasonMap estimates.

Month by month

Pyeongchang vs Seoul in September — FAQ

Is September better in Pyeongchang or Seoul?: Seoul is the better pick in September — 75 vs 15 on SeasonMap's comfort score. Seoul is hot, rainy, muggy air, while Pyeongchang is warm, soaked, clean air.
What is the weather like in Pyeongchang vs Seoul in September?: In September, Pyeongchang averages 25°C high / 16°C low with about 167 mm of rain; Seoul averages 28°C high / 19°C low with about 148 mm.