West Java weather in September
September is one of the best months to visit West Java: highs of 30°C (87°F) and about 66 mm (2.6 in) of rain on average. Nights average 25°C (76°F) and cloud cover 60% (NASA POWER, 2001–2025 averages). The sea averages 31°C (87°F). It is the 2nd driest month of the year and the 2nd warmest. Compared with August, it is warmer and wetter; October brings highs of 31°C (87°F) and 134 mm (5.3 in) of rain.
Figures are long-term averages for Bekasi, the largest city in West Java. See below for other places.
Is September a good time to visit West Java?
best month Weather score 77/100.
Yes. September is one of the best months for weather in West Java.
Does it rain a lot in West Java in September?
Some rain is normal: about 66 mm (2.6 in) falls in an average September. It is the 2nd driest month of the year.
How warm is West Java in September?
Days average 30°C (87°F) and nights 25°C (76°F).
West Java weather by month
| Month | High | Low | Rain | Cloud | Sea | Weather |
|---|---|---|---|---|---|---|
| January | 29°C (84°F) | 25°C (77°F) | 353 mm | 91% | 30°C (86°F) | least pleasant |
| February | 28°C (83°F) | 25°C (77°F) | 386 mm | 92% | 30°C (87°F) | least pleasant |
| March | 29°C (84°F) | 26°C (78°F) | 248 mm | 88% | 30°C (87°F) | least pleasant |
| April | 29°C (85°F) | 26°C (79°F) | 197 mm | 84% | 31°C (88°F) | fair |
| May | 30°C (85°F) | 26°C (79°F) | 141 mm | 71% | 31°C (88°F) | fair |
| June | 29°C (85°F) | 25°C (78°F) | 95 mm | 64% | 31°C (87°F) | best |
| July | 29°C (84°F) | 25°C (76°F) | 89 mm | 59% | 30°C (86°F) | best |
| August | 29°C (85°F) | 24°C (76°F) | 49 mm | 52% | 30°C (87°F) | best |
| September | 30°C (87°F) | 25°C (76°F) | 66 mm | 60% | 31°C (87°F) | best |
| October | 31°C (87°F) | 26°C (78°F) | 134 mm | 76% | 31°C (88°F) | fair |
| November | 30°C (86°F) | 26°C (79°F) | 198 mm | 88% | 31°C (87°F) | fair |
| December | 29°C (85°F) | 25°C (78°F) | 244 mm | 93% | 30°C (86°F) | least pleasant |
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis), sea temperature from Open-Meteo Marine. Page updated . How we rate months
Weather across West Java in September
Weather can differ a lot within West Java: coasts, hills and mountains each have their own climate.
| Place | High | Low | Rain | Weather |
|---|---|---|---|---|
| Bekasi | 30°C (87°F) | 25°C (76°F) | 66 mm | best |
| Bandung | 26°C (79°F) | 16°C (61°F) | 89 mm | best |
| Depok | 30°C (86°F) | 20°C (68°F) | 83 mm | best |
| Bogor | 30°C (86°F) | 20°C (68°F) | 83 mm | best |
| Tasikmalaya | 26°C (79°F) | 19°C (66°F) | 108 mm | best |
| Cimahi | 26°C (79°F) | 16°C (61°F) | 89 mm | best |
| Sukabumi | 28°C (83°F) | 19°C (66°F) | 103 mm | best |
| Cibinong | 30°C (86°F) | 20°C (68°F) | 83 mm | best |
| Cirebon | 30°C (85°F) | 26°C (78°F) | 46 mm | best |
| Karawang | 30°C (87°F) | 21°C (69°F) | 70 mm | best |
| Cileungsir | 30°C (86°F) | 20°C (68°F) | 83 mm | best |
| Pasarkemis | 30°C (87°F) | 25°C (76°F) | 72 mm | best |