Planning for the weather is a good way to make your trip to Raivavae relaxing and enjoyable, especially when you're splurging. The hottest months are usually March and April with an average temp of 81°F, while the coldest months are August and July with an average of 77°F. The rainiest months in Raivavae are January, December, February, and March, with each month seeing an average of 10 inches of rainfall.