Weather is probably a major factor when you plan your trip to Ofu, but bear in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually March and April, with an average temperature of 28°C, while the coldest months are August and July, with an average of 27°C. The rainiest months in Ofu are January, February, December and November, with each month seeing an average of 341 mm of rainfall.