Generally, you can anticipate the weather in Ko Samui during the duration of September is 26. You can expect a high of 31 and lows being 25. We have put some more information below:
| Month | Degrees Celsius |
|---|---|
| Temperature | 26 |
| High Temperature | 31 |
| Low Temperature | 25 |
| Sunshine Per Day | 7 |
Ko Samui, Thailand Weather in September FAQs
What’s the weather like then?
It should be likely to be 26 celsius although naturally it does change throughout the day
How sunny does it get?
Expect around 7 hours of sunshine
Whats the coolest it usually gets?
Our weather insight tells us it will go to 25 degrees celsiusUseful Links: Ko Samui Weather: Average Weather & Yearly Climate