Weather is probably a major factor when you plan your trip to Selayar Island, but bear in mind that cheaper options are usually available when the weather isn’t as good. The hottest months are usually October and September, 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 Selayar Island are January, December, February and March, with each month seeing an average of 429 mm of rainfall.