What is the weather like in Chiang Mai vs Ko Tao in September?

In September, Chiang Mai averages 33°C high / 24°C low with about 232 mm of rain; Ko Tao averages 27°C high / 26°C low with about 182 mm.

Chiang Mai vs Ko Tao in September

Ko Tao is the better pick in September — 70 vs 49 on SeasonMap's comfort score. Ko Tao is hot, soaked, clean air, while Chiang Mai is sweltering, soaked, muggy air.

Chiang Mai vs Ko Tao — September climate, side by side

	🇹🇭 Chiang Mai	🇹🇭 Ko Tao
Comfort score	49/100 (F)	70/100 (B)
Feels-like high	39°C	31°C
Avg high / low	33° / 24°	27° / 26°
Rainfall	232 mm	182 mm
Rainy days	23	22
Humidity	86%	81%
Air quality (AQI)	53	29

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

Month by month

Chiang Mai vs Ko Tao in September — FAQ

Is September better in Chiang Mai or Ko Tao?: Ko Tao is the better pick in September — 70 vs 49 on SeasonMap's comfort score. Ko Tao is hot, soaked, clean air, while Chiang Mai is sweltering, soaked, muggy air.
What is the weather like in Chiang Mai vs Ko Tao in September?: In September, Chiang Mai averages 33°C high / 24°C low with about 232 mm of rain; Ko Tao averages 27°C high / 26°C low with about 182 mm.