It’s good news! Sumba is the sunniest island in Indonesia. From April to November – so almost all the year round – the climate resembles a Mediterranean summer: dry with sunshine tempered by a breeze, almost no clouds in the blue skies, and beautiful temperatures of around 30 °C. And when the sun goes down, nights are perfectly cool – during the southern hemisphere’s winter (June to August) temperatures can even be as low as 17 °C.
The rainy season comes at around the same time as in Bali, being December to March, and assures that the forests are verdant and the waterfalls flow! But Sumba’s rainfall is comparatively much lighter than Bali’s, meaning the season is still enjoyable. Often it won’t rain every day, and when it does, it’s only a couple of hours in the morning and the evening broken up by sun.
The sea is perfect for swimming year round, with temperatures ranging from 26-27 °C between July and September, rising to 29 °C between November and April.
And don’t forget, February is still one of the best months for culture hounds to visit the Island, with the Pasola festival and the rice harvest.