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

In December, Bangkok averages 33°C high / 24°C low with about 17 mm of rain; Ko Samui averages 29°C high / 24°C low with about 221 mm.

Bangkok vs Ko Samui in December

Bangkok is the better pick in December — 75 vs 70 on SeasonMap's comfort score. Bangkok is sweltering, dry, while Ko Samui is hot, soaked, muggy air.

Bangkok vs Ko Samui — December climate, side by side

	Bangkok	Ko Samui
Comfort score	75/100 (B)	70/100 (B)
Feels-like high	35°C	33°C
Avg high / low	33° / 24°	29° / 24°
Rainfall	17 mm	221 mm
Rainy days	2	16
Humidity	65%	79%
Air quality (AQI)	96	52

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

Bangkok vs Ko Samui in December — FAQ

Is December better in Bangkok or Ko Samui?: Bangkok is the better pick in December — 75 vs 70 on SeasonMap's comfort score. Bangkok is sweltering, dry, while Ko Samui is hot, soaked, muggy air.
What is the weather like in Bangkok vs Ko Samui in December?: In December, Bangkok averages 33°C high / 24°C low with about 17 mm of rain; Ko Samui averages 29°C high / 24°C low with about 221 mm.