Climate averages 1991–2020
Batu weather
in December.
A warm, very wet month: the joint 10th warmest and the 9th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a warm month in Batu: daytime highs average 25.8°C and nights cool to about 20.1°C. By daytime temperature it is the joint 10th warmest of the 12 months.
Expect about 436 mm of rain on roughly 28 days, which makes December a very wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 34 min on an average December day.
The nearest other city in this atlas is Singosari (15 km away). In December its highs average 27.6°C, 1.8°C warmer than Batu, with 345 mm of rain.
Among the 200 cities listed in Indonesia, Batu ranks 192nd of 200 for the warmest December highs and 178th of 200 for the driest December (rainfall, lowest first). The mean December high of those 200 cities is 28.4°C; Batu is 2.6°C cooler than that mean.
From December to January, average highs fall by 0.2°C to 25.7°C, and monthly rainfall rises from 436 mm to 509 mm.
The annual picture
December 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
Batu climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 25.7°C20.1°C | 20.1°C | 509 | 29.7 | 12.513 h |
| February | 25.8°C20.0°C | 20.0°C | 498 | 27.8 | 12.412 h |
| March | 26.0°C20.0°C | 20.0°C | 464 | 28.9 | 12.212 h |
| April | 26.2°C20.0°C | 20.0°C | 295 | 25.5 | 11.912 h |
| May | 26.6°C19.4°C | 19.4°C | 138 | 18.5 | 11.812 h |
| June | 26.5°C18.7°C | 18.7°C | 72 | 12.8 | 11.712 h |
| July | 26.6°C17.8°C | 17.8°C | 51 | 9.8 | 11.712 h |
| August | 27.3°C17.6°C | 17.6°C | 37 | 7.4 | 11.912 h |
| September | 28.4°C18.5°C | 18.5°C | 56 | 8.1 | 12.112 h |
| October | 28.4°C19.5°C | 19.5°C | 152 | 15.4 | 12.312 h |
| November | 27.0°C20.2°C | 20.2°C | 326 | 23.3 | 12.512 h |
| December, selected | 25.8°C20.1°C | 20.1°C | 436 | 28.4 | 12.613 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
December in nearby cities
- Singosari in DecemberIndonesia · 15 kmHigh 27.6°C · Low 21.6°C · 345 mm rain
- Malang in DecemberIndonesia · 17 kmHigh 27.3°C · Low 21.6°C · 345 mm rain
- Lawang in DecemberIndonesia · 19 kmHigh 27.9°C · Low 21.6°C · 420 mm rain
- Pare in DecemberIndonesia · 38 kmHigh 28.8°C · Low 22.7°C · 365 mm rain
- Bangil in DecemberIndonesia · 44 kmHigh 29.6°C · Low 23.1°C · 253 mm rain
- Mojokerto in DecemberIndonesia · 46 kmHigh 30.4°C · Low 23.2°C · 447 mm rain
- Blitar in DecemberIndonesia · 47 kmHigh 28.1°C · Low 22.6°C · 411 mm rain
- Jombang in DecemberIndonesia · 49 kmHigh 30.0°C · Low 23.2°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 Batu) is explained once on the Batu year overview and on the Sources, method and limits page.