The temperatures in Rayong during May are extremely high, between 28°C and hot as 31°C, drinking water regularly is advisable.
There’s going to be many days of rain during the month of May in Rayong.
Rayong 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 Rayong in May 2025.
If you’re planning to visit Rayong in the near future, we highly recommend that you review the 14 day weather forecast for Rayong before you arrive.
Temperatures
31° / 28°
Rainy Days
18
Snowy Days
0
Dry Days
13
Rainfall
370
mm
Sun Hours
11.1
Hrs