Planning for the weather is an important factor for making your trip to Saraburi a success, especially when you're splurging. The hottest months are usually April and March, with an average temperature of 30°C, while the coldest months are December and January, with an average of 26°C. The rainiest months in Saraburi are September, August, July and October, with each month seeing an average of 223 mm of rainfall.