The temperatures in Phnom Penh during May are extremely high, between 27°C and hot as 35°C, drinking water regularly is advisable.
There’s going to be many days of rain during the month of May in Phnom Penh.
Phnom Penh 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 Phnom Penh in May 2025.
If you’re planning to visit Phnom Penh in the near future, we highly recommend that you review the 14 day weather forecast for Phnom Penh before you arrive.
Temperatures
35° / 27°
Rainy Days
15
Snowy Days
0
Dry Days
16
Rainfall
268
mm
Sun Hours
11.0
Hrs
