Weather will likely play an important role when you plan your trip to Numfoor, but bear in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually October and May, with an average temperature of 27°C, while the coldest months are August and July, with an average of 26°C. The rainiest months in Numfoor are April, March, January and December, with each month seeing an average of 379 mm of rainfall.