Taking into account the local weather in Ban Nak Kham is an important factor for planning your visit, especially if you plan to spend your trip poolside. The hottest months are usually March and April with an average temp of 80°F, while the coldest months are January and February with an average of 78°F. The rainiest months in Ban Nak Kham are November, October, September, and May, with each month seeing an average of 13 inches of rainfall.