Visiting local bars in Fomboni is more fun when the weather is good. These temperatures and rainfall averages can help you choose the best time for bar-hopping. The hottest months are usually March and December, with an average temperature of 28°C, while the coldest months are August and September, with an average of 25°C. The rainiest months in Fomboni are January, February, March and December, with each month seeing an average of 228 mm of rainfall.