Planning for the weather is a good way to make your trip to Luwuk relaxing and enjoyable, especially when you're splurging. The hottest months are usually October and November, with an average temperature of 25°C, while the coldest months are September and August, with an average of 24°C. The rainiest months in Luwuk are April, May, March and June, with each month seeing an average of 384 mm of rainfall.