Climate averages 1991–2020
Mataram weather
in December.
A hot, very wet month: the 10th warmest and the wettest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a hot month in Mataram: daytime highs average 28.6°C and nights cool to about 24.7°C. By daytime temperature it is the 10th warmest of the 12 months.
Expect about 266 mm of rain on roughly 27 days, which makes December a very wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 12 h 37 min on an average December day.
The nearest other city in this atlas is Selong (46 km away). In December its highs average 28.9°C, about as warm as Mataram, with 313 mm of rain.
Among the 200 cities listed in Indonesia, Mataram ranks joint 105th of 200 for the warmest December highs and joint 35th of 200 for the driest December (rainfall, lowest first). The mean December high of those 200 cities is 28.4°C; Mataram is 0.2°C warmer than that mean.
From December to January, average highs fall by 0.3°C to 28.3°C, and monthly rainfall falls from 266 mm to 248 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
Mataram climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 28.3°C24.5°C | 24.5°C | 248 | 27.6 | 12.613 h |
| February | 28.4°C24.5°C | 24.5°C | 215 | 25.4 | 12.412 h |
| March | 28.9°C24.6°C | 24.6°C | 218 | 25.5 | 12.212 h |
| April | 29.5°C24.6°C | 24.6°C | 159 | 18.8 | 11.912 h |
| May | 29.9°C24.2°C | 24.2°C | 48 | 7.9 | 11.712 h |
| June | 29.8°C23.6°C | 23.6°C | 29 | 4.6 | 11.612 h |
| July | 29.6°C22.8°C | 22.8°C | 17 | 2.8 | 11.712 h |
| August | 30.2°C22.5°C | 22.5°C | 5.0 | 1.2 | 11.812 h |
| September | 30.9°C23.1°C | 23.1°C | 15 | 2.1 | 12.012 h |
| October | 31.0°C24.1°C | 24.1°C | 47 | 7.3 | 12.312 h |
| November | 30.0°C24.8°C | 24.8°C | 157 | 19.3 | 12.512 h |
| December, selected | 28.6°C24.7°C | 24.7°C | 266 | 26.9 | 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
- Selong in DecemberIndonesia · 46 kmHigh 28.9°C · Low 23.5°C · 313 mm rain
- Klungkung in DecemberIndonesia · 79 kmHigh 28.9°C · Low 24.7°C · 320 mm rain
- Ubud in DecemberIndonesia · 94 kmHigh 27.9°C · Low 23.5°C · 364 mm rain
- Denpasar in DecemberIndonesia · 99 kmHigh 27.3°C · Low 24.4°C · 248 mm rain
- Sukawati in DecemberIndonesia · 118 kmHigh 27.8°C · Low 24.2°C · 289 mm rain
- Singaraja in DecemberIndonesia · 125 kmHigh 29.0°C · Low 24.6°C · 199 mm rain
- Banjar, Indonesia in DecemberIndonesia · 134 kmHigh 30.2°C · Low 25.4°C · 475 mm rain
- Negara in DecemberIndonesia · 167 kmHigh 28.7°C · Low 25.0°C · 218 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 Mataram) is explained once on the Mataram year overview and on the Sources, method and limits page.