Weather is probably a major factor when you plan your trip to Sabu Island, but bear in mind that cheaper options are usually available when the weather isn’t as good. The hottest months are usually December and April, with an average temperature of 29°C, while the coldest months are August and July, with an average of 27°C. The rainiest months in Sabu Island are January, February, December and March, with each month seeing an average of 230 mm of rainfall.