Climate averages 1991–2020
Pekalongan weather
in January.
A hot, very wet month: one of the coolest and the 9th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
January is a hot month in Pekalongan: daytime highs average 28.0°C and nights cool to about 23.7°C. By daytime temperature it is one of the coolest months of the year.
Expect about 410 mm of rain on roughly 30 days, which makes January a very wet month (the 9th 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 Kedungwuni (10 km away). In January its highs average 28.4°C, about as warm as Pekalongan, with 410 mm of rain.
Among the 200 cities listed in Indonesia, Pekalongan ranks joint 143rd of 200 for the warmest January highs and joint 167th of 200 for the driest January (rainfall, lowest first). The mean January high of those 200 cities is 28.2°C; Pekalongan is 0.2°C cooler than that mean.
From January to February, average highs fall by 0.1°C to 28.0°C, and monthly rainfall falls from 410 mm to 384 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
Pekalongan climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January, selected | 28.0°C23.7°C | 23.7°C | 410 | 30.4 | 12.512 h |
| February | 28.0°C23.7°C | 23.7°C | 384 | 27.8 | 12.312 h |
| March | 28.5°C23.9°C | 23.9°C | 414 | 30.2 | 12.112 h |
| April | 28.9°C24.1°C | 24.1°C | 377 | 28.4 | 12.012 h |
| May | 29.2°C24.0°C | 24.0°C | 202 | 23.3 | 11.812 h |
| June | 29.0°C23.5°C | 23.5°C | 148 | 17.2 | 11.712 h |
| July | 29.1°C23.0°C | 23.0°C | 103 | 14.4 | 11.812 h |
| August | 29.8°C22.9°C | 22.9°C | 76 | 11.8 | 11.912 h |
| September | 30.6°C23.6°C | 23.6°C | 123 | 14.8 | 12.112 h |
| October | 30.4°C24.2°C | 24.2°C | 293 | 22.7 | 12.312 h |
| November | 29.1°C24.2°C | 24.2°C | 465 | 28.3 | 12.412 h |
| December | 28.5°C24.0°C | 24.0°C | 517 | 29.6 | 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
- Kedungwuni in JanuaryIndonesia · 10 kmHigh 28.4°C · Low 23.4°C · 410 mm rain
- Pemalang in JanuaryIndonesia · 32 kmHigh 28.4°C · Low 23.8°C · 425 mm rain
- Tarub in JanuaryIndonesia · 56 kmHigh 28.4°C · Low 24.2°C · 473 mm rain
- Wonosobo in JanuaryIndonesia · 58 kmHigh 25.6°C · Low 20.0°C · 560 mm rain
- Tegal in JanuaryIndonesia · 59 kmHigh 28.5°C · Low 24.3°C · 393 mm rain
- Purwokerto in JanuaryIndonesia · 77 kmHigh 29.2°C · Low 23.3°C · 426 mm rain
- Semarang in JanuaryIndonesia · 83 kmHigh 27.7°C · Low 23.5°C · 391 mm rain
- Ungaran in JanuaryIndonesia · 85 kmHigh 26.6°C · Low 21.5°C · 502 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 Pekalongan) is explained once on the Pekalongan year overview and on the Sources, method and limits page.
Kedungwuni lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.