Planning for the weather is a good way to make your trip to Makatea relaxing and enjoyable, especially when you're splurging. The hottest months are usually March and April with an average temp of 82°F, while the coldest months are August and September with an average of 79°F. The rainiest months in Makatea are February, January, December, and November, with each month seeing an average of 9 inches of rainfall.