Taking into account the local weather in Rumah Nyanggau can help you maximize your time at the pool during your trip. The hottest months are usually May and August with an average temp of 80°F, while the coldest months are February and March with an average of 78°F. The rainiest months in Rumah Nyanggau are December, January, November, and October, with each month seeing an average of 13 inches of rainfall.