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

In September, Jeju averages 27°C high / 22°C low with about 239 mm of rain; Pyeongchang averages 25°C high / 16°C low with about 167 mm.

Jeju vs Pyeongchang in September

Jeju is the better pick in September — 69 vs 15 on SeasonMap's comfort score. Jeju is hot, soaked, muggy air, while Pyeongchang is warm, soaked, clean air.

Jeju vs Pyeongchang — September climate, side by side

	🇰🇷 Jeju	🇰🇷 Pyeongchang
Comfort score	69/100 (C)	15/100 (F)
Feels-like high	30°C	27°C
Avg high / low	27° / 22°	25° / 16°
Rainfall	239 mm	167 mm
Rainy days	15	11
Humidity	81%	81%
Air quality (AQI)	62	48

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

Month by month

Jeju 🇰🇷 South Koreahot, soaked, muggy air · best August69
Pyeongchang 🇰🇷 South Koreawarm, soaked, clean air · best January15

Jeju vs Pyeongchang in September — FAQ

Is September better in Jeju or Pyeongchang?: Jeju is the better pick in September — 69 vs 15 on SeasonMap's comfort score. Jeju is hot, soaked, muggy air, while Pyeongchang is warm, soaked, clean air.
What is the weather like in Jeju vs Pyeongchang in September?: In September, Jeju averages 27°C high / 22°C low with about 239 mm of rain; Pyeongchang averages 25°C high / 16°C low with about 167 mm.