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

In September, Chiang Mai averages 33°C high / 24°C low with about 232 mm of rain; Pattaya averages 32°C high / 26°C low with about 246 mm.

Chiang Mai vs Pattaya in September

Pattaya is the better pick in September — 64 vs 49 on SeasonMap's comfort score. Pattaya is sweltering, soaked, clean air, while Chiang Mai is sweltering, soaked, muggy air.

Chiang Mai vs Pattaya — September climate, side by side

	Chiang Mai	Pattaya
Comfort score	49/100 (F)	64/100 (C)
Feels-like high	39°C	38°C
Avg high / low	33° / 24°	32° / 26°
Rainfall	232 mm	246 mm
Rainy days	23	26
Humidity	86%	84%
Air quality (AQI)	53	33

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

Chiang Mai vs Pattaya in September — FAQ

Is September better in Chiang Mai or Pattaya?: Pattaya is the better pick in September — 64 vs 49 on SeasonMap's comfort score. Pattaya is sweltering, soaked, clean air, while Chiang Mai is sweltering, soaked, muggy air.
What is the weather like in Chiang Mai vs Pattaya in September?: In September, Chiang Mai averages 33°C high / 24°C low with about 232 mm of rain; Pattaya averages 32°C high / 26°C low with about 246 mm.