Taking into account the local weather in Nanga Salu is an important factor for planning your visit, especially if you plan to spend your trip poolside. The hottest months are usually May and August with an average temp of 79°F, while the coldest months are February and January with an average of 78°F. The rainiest months in Nanga Salu are December, November, January, and April, with each month seeing an average of 14 inches of rainfall.