Weather is probably a major factor when you plan your trip to Khlong Hat, and keep in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually March and April with an average temp of 84°F, while the coldest months are December and January with an average of 78°F. The rainiest months in Khlong Hat are September, October, August, and July, with each month seeing an average of 9 inches of rainfall.