Weather is probably a major factor when you plan your trip to Niuatoputapu, but bear in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually February and March, with an average temperature of 28°C, while the coldest months are August and July, with an average of 26°C. The rainiest months in Niuatoputapu are January, February, December and April, with each month seeing an average of 355 mm of rainfall.