Weather is probably a major factor when you plan your trip to Rurutu, 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 26°C, while the coldest months are August and September, with an average of 22°C. The rainiest months in Rurutu are February, March, January and April, with each month seeing an average of 223 mm of rainfall.