What is the weather like in Chiang Mai vs Reykjavík in September?

In September, Chiang Mai averages 33°C high / 24°C low with about 232 mm of rain; Reykjavík averages 11°C high / 6°C low with about 133 mm.

Chiang Mai vs Reykjavík in September

Reykjavík is the better pick in September — 68 vs 49 on SeasonMap's comfort score. Reykjavík is cold, rainy, clean air, while Chiang Mai is sweltering, soaked, muggy air.

Chiang Mai vs Reykjavík — September climate, side by side

	🇹🇭 Chiang Mai	🇮🇸 Reykjavík
Comfort score	49/100 (F)	68/100 (C)
Feels-like high	39°C	8°C
Avg high / low	33° / 24°	11° / 6°
Rainfall	232 mm	133 mm
Rainy days	23	18
Humidity	86%	85%
Air quality (AQI)	53	32

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

Month by month

Chiang Mai vs Reykjavík in September — FAQ

Is September better in Chiang Mai or Reykjavík?: Reykjavík is the better pick in September — 68 vs 49 on SeasonMap's comfort score. Reykjavík is cold, rainy, clean air, while Chiang Mai is sweltering, soaked, muggy air.
What is the weather like in Chiang Mai vs Reykjavík in September?: In September, Chiang Mai averages 33°C high / 24°C low with about 232 mm of rain; Reykjavík averages 11°C high / 6°C low with about 133 mm.