Sumba Weather & Climate: Best Time to Visit
With consistently stable weather, Sumba, East Nusa Tenggara, Indonesia, sees little seasonal temperature change. Daytime highs average 30°C (86°F), ranging from 32°C (90°F) in October to 29°C (84°F) in August.
Rainfall is high, totalling around 1461 mm (58 in) per year. February is the wettest month and August the driest. The city also experiences distinct dry (June to October) and wet (December to March) seasons.
Monthly Temperature in Sumba
The climate in Sumba remains fairly constant, offering very warm temperatures throughout the year. Average maximum daytime temperatures range from a very warm 32°C (90°F) in October, the warmest time of the year, to a comfortable 29°C (84°F) during cooler months like August.
At night, you can expect temperatures ranging from 24°C (75°F) in October to around 21°C (70°F) during August.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Sumba
Sumba is known for its substantial rainfall, with annual precipitation reaching 1461 mm (58 in). Significant seasonal changes in precipitation occur throughout the year. In the wettest month, February it receives heavy rainfall, averaging 298 mm (12 in) of precipitation, recorded across 18 rainy days. In contrast, the driest month August brings less rainfall, with 9.3 mm (0.4 in) over a single rainy day. For more details, please visit our Sumba Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sumba 3-Day Forecast
Check the conditions for any month of the year.
Best Time to Visit Sumba
In general, temperatures in Sumba range from 29°C (84°F) to 32°C (90°F) across the year, with May, June, July, August, September and October being the best time to visit for those who prefer drier weather.Make your experience more enjoyable by planning to be outside during the cooler parts of the day, either early morning or as the sun begins to set. Visitors should note that January, February, March and December are part of the rainy season, bringing substantial rainfall. Need help choosing your next travel destination? We offer a specialized tool that matches you with locations based on your weather preferences. Explore destinations that suit your climate preferences.
