What is the weather like in Con Dao vs Ko Samui in September?

In September, Con Dao averages 30°C high / 26°C low with about 329 mm of rain; Ko Samui averages 32°C high / 25°C low with about 141 mm.

Con Dao vs Ko Samui in September

Ko Samui is the better pick in September — 73 vs 58 on SeasonMap's comfort score. Ko Samui is sweltering, rainy, clean air, while Con Dao is hot, soaked, clean air.

Con Dao vs Ko Samui — September climate, side by side

	Con Dao	Ko Samui
Comfort score	58/100 (D)	73/100 (B)
Feels-like high	33°C	37°C
Avg high / low	30° / 26°	32° / 25°
Rainfall	329 mm	141 mm
Rainy days	25	22
Humidity	83%	79%
Air quality (AQI)	42	27

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

Con Dao vs Ko Samui in September — FAQ

Is September better in Con Dao or Ko Samui?: Ko Samui is the better pick in September — 73 vs 58 on SeasonMap's comfort score. Ko Samui is sweltering, rainy, clean air, while Con Dao is hot, soaked, clean air.
What is the weather like in Con Dao vs Ko Samui in September?: In September, Con Dao averages 30°C high / 26°C low with about 329 mm of rain; Ko Samui averages 32°C high / 25°C low with about 141 mm.