The temperatures in Koh Kong during September are extremely high, between 27°C and hot as 29°C, drinking water regularly is advisable.
There’s going to be many days of rain during the month of September in Koh Kong.
Koh Kong should expect an average of 15 to 22 days of rain, so be sure to bring along a waterproof jacket to stay dry this month!
Our weather forecast can give you a great sense of what weather to expect in Koh Kong in September 2025.
If you’re planning to visit Koh Kong in the near future, we highly recommend that you review the 14 day weather forecast for Koh Kong before you arrive.
Temperatures
29° / 27°
Rainy Days
19
Snowy Days
0
Dry Days
11
Rainfall
707
mm
Sun Hours
10.0
Hrs
