Weather is probably a major factor when you plan your trip to Palu, but bear in mind that cheaper options are usually available when the weather isn’t as good. The hottest months are usually October and May, with an average temperature of 26°C, while the coldest months are July and August, with an average of 26°C. The rainiest months in Palu are June, May, July and November, with each month seeing an average of 360 mm of rainfall.