Planning for the weather is an important factor for making your trip to Nanga Salu a success, especially when you’re splurging. The hottest months are usually May and August, with an average temperature of 26°C, while the coldest months are February and January, with an average of 25°C. The rainiest months in Nanga Salu are December, November, January and April, with each month seeing an average of 361 mm of rainfall.