Koh Samui in September
Climate
- Day / Night
- 31.9°C / 24.8°C
- Rainfall
- 118 mm
- Rainy days
- 15
- Humidity
- 80%
Official 30-year averages (1991–2020) from the Thai Meteorological Department's Ko Samui station, 15 km from Koh Samui (source). See Where to Go for how this compares across regions.
About this month
Low season (nationwide generalization)
Typically one of the wettest months of the year across much of the country — pack for rain and expect the possibility of localised flooding, particularly in low-lying areas.
Event this month
Sart Duan SipNakhon Si Thammarat, southern Thailand
Going to Koh Samui in September?
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