Weather is probably a major factor when you plan your trip to La-un, 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 January and February, with an average of 26°C. The rainiest months in La-un are September, July, October and August, with each month seeing an average of 414 mm of rainfall.