Taking into account the local weather in Pulau Nusalaut can help you maximize your time at the pool during your trip. The hottest months are usually January and December with an average temp of 80°F, while the coldest months are August and September with an average of 78°F. The rainiest months in Pulau Nusalaut are March, May, July, and April, with each month seeing an average of 14 inches of rainfall.