Weather will likely play an important role when you plan your trip to Dili, and keep 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 temp of 80°F, while the coldest months are August and July with an average of 78°F. The rainiest months in Dili are March, December, February, and January, with each month seeing an average of 12 inches of rainfall.