Planning for the weather is an important factor for making your trip to Faanui a success, especially when you’re splurging. The hottest months are usually March and April, with an average temperature of 27°C, while the coldest months are August and September, with an average of 25°C. The rainiest months in Faanui are January, February, December and November, with each month seeing an average of 280 mm of rainfall.