Visiting local bars in Tulagi Island is more fun when you know what the weather holds. These temperatures and rainfall averages can help you determine the best time for bar-hopping. The hottest months are usually May and November, with an average temperature of 27°C, while the coldest months are August and July, with an average of 26°C. The rainiest months in Tulagi Island are March, December, January and February, with each month seeing an average of 424 mm of rainfall.