South Sumatra weather in September
September is one of the best months to visit South Sumatra: highs of 30°C (86°F) and about 98 mm (3.9 in) of rain on average. Nights average 22°C (72°F) and cloud cover 75% (NASA POWER, 2001–2025 averages). It is the 2nd driest month of the year and the 2nd warmest. Compared with August, it is about as warm and wetter; October brings highs of 30°C (87°F) and 191 mm (7.5 in) of rain.
Figures are long-term averages for Palembang, the largest city in South Sumatra. See below for other places.
Is September a good time to visit South Sumatra?
best month Weather score 69/100.
Yes. September is one of the best months for weather in South Sumatra.
Does it rain a lot in South Sumatra in September?
Some rain is normal: about 98 mm (3.9 in) falls in an average September. It is the 2nd driest month of the year.
How warm is South Sumatra in September?
Days average 30°C (86°F) and nights 22°C (72°F).
South Sumatra weather by month
| Month | High | Low | Rain | Cloud | Weather |
|---|---|---|---|---|---|
| January | 29°C (83°F) | 23°C (74°F) | 244 mm | 93% | least pleasant |
| February | 29°C (84°F) | 23°C (74°F) | 228 mm | 91% | fair |
| March | 29°C (85°F) | 24°C (74°F) | 313 mm | 89% | least pleasant |
| April | 30°C (85°F) | 24°C (75°F) | 278 mm | 87% | least pleasant |
| May | 30°C (85°F) | 24°C (75°F) | 178 mm | 80% | fair |
| June | 29°C (85°F) | 23°C (74°F) | 134 mm | 73% | best |
| July | 29°C (84°F) | 22°C (72°F) | 110 mm | 72% | best |
| August | 30°C (85°F) | 22°C (72°F) | 79 mm | 69% | best |
| September | 30°C (86°F) | 22°C (72°F) | 98 mm | 75% | best |
| October | 30°C (87°F) | 23°C (73°F) | 191 mm | 86% | fair |
| November | 30°C (86°F) | 24°C (74°F) | 291 mm | 93% | least pleasant |
| December | 29°C (84°F) | 23°C (74°F) | 306 mm | 95% | least pleasant |
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis). Page updated . How we rate months
Weather across South Sumatra in September
Weather can differ a lot within South Sumatra: coasts, hills and mountains each have their own climate.
| Place | High | Low | Rain | Weather |
|---|---|---|---|---|
| Palembang | 30°C (86°F) | 22°C (72°F) | 98 mm | best |
| Lubuklinggau | 29°C (83°F) | 21°C (70°F) | 158 mm | best |
| Baturaja | 31°C (87°F) | 22°C (71°F) | 99 mm | best |
| Prabumulih | 30°C (87°F) | 22°C (72°F) | 106 mm | best |
| Pagar Alam | 27°C (81°F) | 20°C (68°F) | 167 mm | best |
| Lahat | 29°C (83°F) | 20°C (69°F) | 133 mm | best |
| Tanjungagung | 29°C (83°F) | 20°C (69°F) | 133 mm | best |
| Indralaya | 30°C (87°F) | 22°C (72°F) | 106 mm | best |