Taking into account the local weather in Sai Buri is an important factor for planning your visit, especially if you plan to spend your trip poolside. The hottest months are usually April and May with an average temp of 81°F, while the coldest months are January and February with an average of 78°F. The rainiest months in Sai Buri are November, December, October, and May, with each month seeing an average of 11 inches of rainfall.