What is the weather like in Bangkok vs Ko Samui in August?

In August, Bangkok averages 34°C high / 26°C low with about 139 mm of rain; Ko Samui averages 33°C high / 26°C low with about 77 mm.

Bangkok vs Ko Samui in August

Ko Samui is the better pick in August — 82 vs 57 on SeasonMap's comfort score. Ko Samui is sweltering, a little rain, clean air, while Bangkok is sweltering, rainy, clean air.

Bangkok vs Ko Samui — August climate, side by side

	🇹🇭 Bangkok	🇹🇭 Ko Samui
Comfort score	57/100 (D)	82/100 (A)
Feels-like high	39°C	38°C
Avg high / low	34° / 26°	33° / 26°
Rainfall	139 mm	77 mm
Rainy days	23	18
Humidity	78%	77%
Air quality (AQI)	43	27

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

Month by month

Bangkok vs Ko Samui in August — FAQ

Is August better in Bangkok or Ko Samui?: Ko Samui is the better pick in August — 82 vs 57 on SeasonMap's comfort score. Ko Samui is sweltering, a little rain, clean air, while Bangkok is sweltering, rainy, clean air.
What is the weather like in Bangkok vs Ko Samui in August?: In August, Bangkok averages 34°C high / 26°C low with about 139 mm of rain; Ko Samui averages 33°C high / 26°C low with about 77 mm.