Climate averages 1991–2020
Sumber weather
in January.
A hot, very wet month: one of the coolest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
January is a hot month in Sumber: daytime highs average 29.1°C and nights cool to about 24.3°C. By daytime temperature it is one of the coolest months of the year.
Expect about 340 mm of rain on roughly 30 days, which makes January a very wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 28 min on an average January day.
The nearest other city in this atlas is Palimanan (9 km away). In January its highs average 28.9°C, about as warm as Sumber, with 340 mm of rain.
Among the 200 cities listed in Indonesia, Sumber ranks joint 32nd of 200 for the warmest January highs and joint 130th of 200 for the driest January (rainfall, lowest first). The mean January high of those 200 cities is 28.2°C; Sumber is 0.9°C warmer than that mean.
From January to February, average highs stay level at 29.1°C, and monthly rainfall falls from 340 mm to 318 mm.
The annual picture
January in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Sumber climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January, selected | 29.1°C24.3°C | 24.3°C | 340 | 29.6 | 12.512 h |
| February | 29.1°C24.2°C | 24.2°C | 318 | 27.5 | 12.312 h |
| March | 29.5°C24.4°C | 24.4°C | 311 | 29.5 | 12.112 h |
| April | 29.8°C24.7°C | 24.7°C | 209 | 25.6 | 12.012 h |
| May | 30.0°C24.6°C | 24.6°C | 96 | 17.2 | 11.812 h |
| June | 30.1°C24.2°C | 24.2°C | 56 | 10.7 | 11.712 h |
| July | 30.5°C23.7°C | 23.7°C | 31 | 6.0 | 11.812 h |
| August | 31.2°C23.5°C | 23.5°C | 13 | 3.1 | 11.912 h |
| September | 32.0°C24.0°C | 24.0°C | 28 | 4.9 | 12.112 h |
| October | 31.8°C24.7°C | 24.7°C | 86 | 12.5 | 12.212 h |
| November | 30.6°C24.9°C | 24.9°C | 228 | 23.1 | 12.412 h |
| December | 29.6°C24.5°C | 24.5°C | 343 | 28.9 | 12.513 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
January in nearby cities
- Palimanan in JanuaryIndonesia · 9 kmHigh 28.9°C · Low 23.7°C · 340 mm rain
- Cirebon in JanuaryIndonesia · 10 kmHigh 28.6°C · Low 24.1°C · 340 mm rain
- Arjawinangun in JanuaryIndonesia · 15 kmHigh 28.8°C · Low 24.0°C · 340 mm rain
- Astanajapura in JanuaryIndonesia · 17 kmHigh 28.8°C · Low 24.2°C · 270 mm rain
- Kuningan in JanuaryIndonesia · 24 kmHigh 27.0°C · Low 21.3°C · 474 mm rain
- Majalengka in JanuaryIndonesia · 29 kmHigh 28.2°C · Low 21.8°C · 380 mm rain
- Jatibarang in JanuaryIndonesia · 37 kmHigh 29.0°C · Low 23.7°C · 282 mm rain
- Indramayu in JanuaryIndonesia · 51 kmHigh 29.0°C · Low 24.0°C · 266 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Sumber) is explained once on the Sumber year overview and on the Sources, method and limits page.
Cirebon, Arjawinangun and Palimanan lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.