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September Rainfall Precipitation in Koh Samui

Koh Samui is a region in Thailand. In September precipitation ranges from high in Laem Set Beach with 143 mm of rainfall to heavy in Suratthani with 208 mm of rainfall.

Where and how much does it rain in Koh Samui in September?

Find the average total precipitation in September for the most popular destinations in Koh Samui on the map below. Click on a destination dot for more detailed information.

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Legend heavy rainfall high moderate low almost none
Heavy rainfall has been defined as more than 160 mm precipitation. High: 90 mm to 160 mm. Moderate: 30 mm to 90 mm. Low: 5 mm to 30 mm.

  • How much rainfall does Koh Samui receive in September?
  • With an average of 162 mm) of rain in September, Chaweng Beach's weather becomes notably unpredictable due to the frequent downpours.

  • What is the wettest city in September in Koh Samui?
  • Based on our records, Suratthani is the location with the highest average precipitation, receiving about 208 mm.

  • What is the driest city in September in Koh Samui?
  • Our figures indicate that Laem Set Beach receives the least rainfall, averaging just 143 mm.

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