Whether you're visiting South Sumatra in Indonesia during the peak of September (34°C (93°F)) or the cooler months around January (31°C (88°F)), knowing what to pack starts with understanding the local climate. Our overview is based on data from Palembang, the region's most prominent city. For more detailed climate information about other cities in the area, please see the section beneath the map further down the page.
In South Sumatra, particularly in Palembang, temperatures are consistently high throughout the year, with average maximum temperatures always above 31°C (88°F).
The peak of the heat usually falls in August, September and October.
Precipitation in South Sumatra varies considerably throughout the year. The wettest conditions occur in December with 309 mm (12 in) of rain, while August stays relatively dry with 84 mm (3.3 in). The region experiences its rainy season during January, February, March, April, May, November and December, when monthly rainfall can range from 191 mm (7.5 in) to 309 mm (12 in).
For those seeking sunshine, May usually has the brightest skies, making it an excellent time for exploring the region.
