Weather will likely play an important role when you plan your trip to Pulau Besar, but bear in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually May and June, with an average temperature of 28°C, while the coldest months are January and February, with an average of 26°C. The rainiest months in Pulau Besar are December, November, January and October, with each month seeing an average of 392 mm of rainfall.