Central Java weather in January
January is one of the least pleasant months in Central Java: highs of 29°C (83°F) and about 354 mm (13.9 in) of rain on average. Nights average 24°C (75°F) and cloud cover 92% (NASA POWER, 2001–2025 averages). It is the wettest month of the year and the 2nd coolest. Compared with December, it is cooler and wetter; February brings highs of 28°C (83°F) and 349 mm (13.7 in) of rain.
Figures are long-term averages for Semarang, the largest city in Central Java. See below for other places.
Is January a good time to visit Central Java?
least pleasant month Weather score 32/100.
January is one of the least pleasant months for weather in Central Java. For better conditions, consider Jun–Sep.
Does it rain a lot in Central Java in January?
Yes, it is one of the rainy months: about 354 mm (13.9 in) falls in an average January. It is the wettest month of the year.
How warm is Central Java in January?
Days average 29°C (83°F) and nights 24°C (75°F).
Central Java weather by month
| Month | High | Low | Rain | Cloud | Weather |
|---|---|---|---|---|---|
| January | 29°C (83°F) | 24°C (75°F) | 354 mm | 92% | least pleasant |
| February | 28°C (83°F) | 24°C (75°F) | 349 mm | 91% | least pleasant |
| March | 29°C (84°F) | 24°C (75°F) | 204 mm | 85% | fair |
| April | 29°C (85°F) | 24°C (75°F) | 187 mm | 80% | fair |
| May | 29°C (85°F) | 24°C (74°F) | 132 mm | 67% | fair |
| June | 30°C (85°F) | 23°C (73°F) | 87 mm | 58% | best |
| July | 31°C (87°F) | 22°C (71°F) | 50 mm | 51% | best |
| August | 33°C (91°F) | 22°C (71°F) | 30 mm | 45% | best |
| September | 34°C (93°F) | 23°C (73°F) | 67 mm | 48% | best |
| October | 33°C (92°F) | 24°C (75°F) | 118 mm | 66% | fair |
| November | 31°C (88°F) | 24°C (76°F) | 205 mm | 84% | fair |
| December | 29°C (84°F) | 24°C (75°F) | 273 mm | 94% | least pleasant |
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis). Page updated . How we rate months
Weather across Central Java in January
Weather can differ a lot within Central Java: coasts, hills and mountains each have their own climate.
| Place | High | Low | Rain | Weather |
|---|---|---|---|---|
| Semarang | 29°C (83°F) | 24°C (75°F) | 354 mm | least pleasant |
| Jepara | 28°C (82°F) | 27°C (80°F) | 382 mm | least pleasant |
| Surakarta | 28°C (82°F) | 22°C (71°F) | 346 mm | least pleasant |
| Pekalongan | 28°C (82°F) | 23°C (73°F) | 330 mm | least pleasant |
| Tegal | 28°C (82°F) | 23°C (73°F) | 330 mm | least pleasant |
| Cilacap | 29°C (84°F) | 23°C (73°F) | 314 mm | least pleasant |
| Purwokerto | 28°C (83°F) | 22°C (72°F) | 327 mm | least pleasant |
| Salatiga | 28°C (82°F) | 22°C (71°F) | 346 mm | least pleasant |
| Pemalang | 28°C (82°F) | 23°C (73°F) | 330 mm | least pleasant |
| Ungaran | 29°C (83°F) | 24°C (75°F) | 354 mm | least pleasant |
| Batang | 28°C (82°F) | 27°C (80°F) | 382 mm | least pleasant |
| Purwodadi | 29°C (83°F) | 24°C (75°F) | 354 mm | least pleasant |