Weather is only one factor, but it can really affect your travel plans, especially if you're planning an extended stay in Futuna Island. 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 24°C. The rainiest months in Futuna Island are April, March, January and February, with each month seeing an average of 275 mm of rainfall.