Weather will likely play an important role when you plan your trip to Kefamenanu, and keep in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually November and October with an average temp of 82°F, while the coldest months are August and July with an average of 79°F. The rainiest months in Kefamenanu are January, February, December, and March, with each month seeing an average of 11 inches of rainfall.