The weather in Khao Yai in September is very hot. The average temperatures are between 24°C and 33°C, drinking water regularly is advisable.
You can expect rain for roughly half of the month of September in Khao Yai. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
Our weather forecast can give you a great sense of what weather to expect in Khao Yai in September 2026.
If you’re planning to visit Khao Yai in the near future, we highly recommend that you review the 14 day weather forecast for Khao Yai before you arrive.
Temperatures
33° / 24°
Rainy Days
13
Snowy Days
0
Dry Days
17
Rainfall
263
mm
Sun Hours
3.3
Hrs
