East Timor is a tropical country so the weather is very hot. East Timor has two seasons: wet (December to April) and dry (May to November).
Day temperatures are around 30°C to 35°C year-round in the lowland areas, dropping to the low 20s overnight. In the mountain areas, warm-to-hot daytime temperatures drop to a chillier 15°C (60°F) at night, less at altitude.
When traveling to East Timor make sure wear proper shirt, sunglassess and sunscreen.