What is the weather like in Ko Samui vs Perhentian Islands in September?

In September, Ko Samui averages 32°C high / 25°C low with about 141 mm of rain; Perhentian Islands averages 30°C high / 25°C low with about 118 mm.

Ko Samui vs Perhentian Islands in September

Perhentian Islands is the better pick in September — 80 vs 73 on SeasonMap's comfort score. Perhentian Islands is sweltering, rainy, clean air, while Ko Samui is sweltering, rainy, clean air.

Ko Samui vs Perhentian Islands — September climate, side by side

	Ko Samui	Perhentian Islands
Comfort score	73/100 (B)	80/100 (A)
Feels-like high	37°C	37°C
Avg high / low	32° / 25°	30° / 25°
Rainfall	141 mm	118 mm
Rainy days	22	20
Humidity	79%	85%
Air quality (AQI)	27	48

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

Ko Samui vs Perhentian Islands in September — FAQ

Is September better in Ko Samui or Perhentian Islands?: Perhentian Islands is the better pick in September — 80 vs 73 on SeasonMap's comfort score. Perhentian Islands is sweltering, rainy, clean air, while Ko Samui is sweltering, rainy, clean air.
What is the weather like in Ko Samui vs Perhentian Islands in September?: In September, Ko Samui averages 32°C high / 25°C low with about 141 mm of rain; Perhentian Islands averages 30°C high / 25°C low with about 118 mm.