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

In September, Chiang Mai averages 33°C high / 24°C low with about 232 mm of rain; Lisbon averages 27°C high / 18°C low with about 24 mm.

Chiang Mai vs Lisbon in September

Lisbon is the better pick in September — 89 vs 49 on SeasonMap's comfort score. Lisbon is warm, dry, clean air, while Chiang Mai is sweltering, soaked, muggy air.

Chiang Mai vs Lisbon — September climate, side by side

	Chiang Mai	Lisbon
Comfort score	49/100 (F)	89/100 (A)
Feels-like high	39°C	27°C
Avg high / low	33° / 24°	27° / 18°
Rainfall	232 mm	24 mm
Rainy days	23	3
Humidity	86%	73%
Air quality (AQI)	53	38

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

Chiang Mai vs Lisbon in September — FAQ

Is September better in Chiang Mai or Lisbon?: Lisbon is the better pick in September — 89 vs 49 on SeasonMap's comfort score. Lisbon is warm, dry, clean air, while Chiang Mai is sweltering, soaked, muggy air.
What is the weather like in Chiang Mai vs Lisbon in September?: In September, Chiang Mai averages 33°C high / 24°C low with about 232 mm of rain; Lisbon averages 27°C high / 18°C low with about 24 mm.