What is the weather like in Ko Samui vs Tioman in September?

In September, Ko Samui averages 32°C high / 25°C low with about 141 mm of rain; Tioman averages 24°C high / 23°C low with about 139 mm.

Ko Samui vs Tioman in September

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

Ko Samui vs Tioman — September climate, side by side

	Ko Samui	Tioman
Comfort score	73/100 (B)	80/100 (A)
Feels-like high	37°C	27°C
Avg high / low	32° / 25°	24° / 23°
Rainfall	141 mm	139 mm
Rainy days	22	21
Humidity	79%	81%
Air quality (AQI)	27	57

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

Ko Samui vs Tioman in September — FAQ

Is September better in Ko Samui or Tioman?: Tioman is the better pick in September — 80 vs 73 on SeasonMap's comfort score. Tioman is warm, rainy, muggy air, while Ko Samui is sweltering, rainy, clean air.
What is the weather like in Ko Samui vs Tioman in September?: In September, Ko Samui averages 32°C high / 25°C low with about 141 mm of rain; Tioman averages 24°C high / 23°C low with about 139 mm.