Visiting local bars in Hienghene is better when you know what the weather holds. These rainfall averages and temperatures can help you choose the best time for bar hopping. The hottest months are usually February and January with an average temp of 77°F, while the coldest months are August and September with an average of 69°F. The rainiest months in Hienghene are March, January, February, and April, with each month seeing an average of 7 inches of rainfall.