May marks the start of the dry season: clearer skies, lower humidity and better conditions for hiking and diving. This is one of the more reliable months for travel logistics and inter-island boat services. Coastal waters become clearer for snorkeling.
J. Patrick Fischer CC BY-SA 4.0 Wikimedia Commons
Average daily low and high (°C) and monthly rainfall. The badge shows how it feels, allowing for humidity.
Average temperature across Timor-Leste in May.
Dili, Baucau, Lospalos, Liquiça
The northern coast settles into dryer, breezier weather by early May as the southeast trade winds start up; Dili and Baucau are warm but not oppressive, with daytime temperatures often in the high 20s. Ferry services re-establish regular schedules, making island trips and east-coast exploration much more reliable. Expect clearer skies for walking the Presidente Nicolau Lobato Boulevard and packing light cottons and a sun hat.
Atauro, Jaco, small islets
By May the southeast trade winds settle in, creating a reliably calm sea surface and crystal-clear diving conditions around Atauro; this is the start of the island’s best season for underwater visibility. Daytime temperatures are warm but tempered by breezes, making kayak trips and snorkeling comfortable. Small guesthouses fill modestly with foreign divers - book ahead for weekends and pack reef-safe sunscreen.
Mount Ramelau/Tatamailau, Maubisse, Aileu, Ermera
May is the start of the highland trekking season with drier days, cool mornings and comfortable daytime temperatures ideal for summiting Tatamailau. Coffee-processing activity in Ermera and Aileu picks up and roads are generally passable. Expect dusty rural tracks and bring layers for chilly nights (down to the low teens or cooler above 1,500 m) and sturdy shoes for rough trails.
Suai, Betano, Same, Same Plains
May marks the start of the dry and windy season on the south coast, with the southeast trades bringing drier air and more predictable conditions; Suai and Betano become pleasant for exploration. Sea conditions calm relative to the wet months but remain windier than the north coast, making early-morning boat trips preferable. Expect improved road access and pack sun protection and a light wind layer for afternoons.
Pante Macassar, Tono River, surrounding enclave
May ushers in the dry season with breezy, sunnier weather that makes boat trips and coastal walks reliable again; Pante Macassar becomes pleasantly accessible and inland roads firm up. Temperatures rise but are tempered by southeast winds; pack light layers for mornings and sunscreen for mid-day. This is a good window for visiting traditional villages and flatlands without the wet-season impediments.
Timor-Leste observes Independence Day on May 20 with national ceremonies and events.
See how May compares with the rest of the year, then read the full guide.