What is the weather like in Ko Chang vs Ko Samui in May?

In May, Ko Chang averages 32°C high / 28°C low with about 335 mm of rain; Ko Samui averages 33°C high / 26°C low with about 131 mm.

Ko Chang vs Ko Samui in May

Ko Samui is the better pick in May — 77 vs 61 on SeasonMap's comfort score. Ko Samui is sweltering, rainy, clean air, while Ko Chang is sweltering, soaked, clean air.

Ko Chang vs Ko Samui — May climate, side by side

	🇹🇭 Ko Chang	🇹🇭 Ko Samui
Comfort score	61/100 (C)	77/100 (B)
Feels-like high	39°C	40°C
Avg high / low	32° / 28°	33° / 26°
Rainfall	335 mm	131 mm
Rainy days	29	20
Humidity	84%	79%
Air quality (AQI)	42	35

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

Month by month

Ko Chang 🇹🇭 Thailandsweltering, soaked, clean air · best December61
Ko Samui 🇹🇭 Thailandsweltering, rainy, clean air · best March77

Ko Chang vs Ko Samui in May — FAQ

Is May better in Ko Chang or Ko Samui?: Ko Samui is the better pick in May — 77 vs 61 on SeasonMap's comfort score. Ko Samui is sweltering, rainy, clean air, while Ko Chang is sweltering, soaked, clean air.
What is the weather like in Ko Chang vs Ko Samui in May?: In May, Ko Chang averages 32°C high / 28°C low with about 335 mm of rain; Ko Samui averages 33°C high / 26°C low with about 131 mm.