Weather is probably a major factor when you plan your trip to Ban Khao Yai Chum, but bear in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually April and May, with an average temperature of 29°C, while the coldest months are January and December, with an average of 27°C. The rainiest months in Ban Khao Yai Chum are September, July, August and October, with each month seeing an average of 358 mm of rainfall.