Weather is probably a major factor when you plan your trip to Nukuhetulu, 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 27°C, while the coldest months are August and September, with an average of 23°C. The rainiest months in Nukuhetulu are February, March, January and April, with each month seeing an average of 289 mm of rainfall.