Climate averages 1991–2020
Selong weather
in December.
A hot, very wet month: the joint 5th warmest and the 10th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a hot month in Selong: daytime highs average 28.9°C and nights cool to about 23.5°C. By daytime temperature it is the joint 5th warmest of the 12 months.
Expect about 313 mm of rain on roughly 28 days, which makes December a very wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 37 min on an average December day.
The nearest other city in this atlas is Mataram (46 km away). In December its highs average 28.6°C, about as warm as Selong, with 266 mm of rain.
Among the 200 cities listed in Indonesia, Selong ranks joint 86th of 200 for the warmest December highs and joint 79th of 200 for the driest December (rainfall, lowest first). The mean December high of those 200 cities is 28.4°C; Selong is 0.4°C warmer than that mean.
From December to January, average highs fall by 0.2°C to 28.6°C, and monthly rainfall rises from 313 mm to 374 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
Selong climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 28.6°C23.3°C | 23.3°C | 374 | 28.2 | 12.613 h |
| February | 28.7°C23.3°C | 23.3°C | 344 | 25.7 | 12.412 h |
| March | 28.9°C23.3°C | 23.3°C | 305 | 25.9 | 12.212 h |
| April | 28.9°C23.2°C | 23.2°C | 161 | 18.8 | 11.912 h |
| May | 29.0°C22.8°C | 22.8°C | 52 | 9.3 | 11.712 h |
| June | 28.6°C22.1°C | 22.1°C | 24 | 5.3 | 11.612 h |
| July | 28.2°C21.3°C | 21.3°C | 15 | 3.8 | 11.712 h |
| August | 28.7°C21.1°C | 21.1°C | 8.1 | 2.8 | 11.812 h |
| September | 29.4°C21.7°C | 21.7°C | 17 | 5.3 | 12.012 h |
| October | 30.1°C22.8°C | 22.8°C | 51 | 11.2 | 12.312 h |
| November | 29.9°C23.5°C | 23.5°C | 158 | 20.1 | 12.513 h |
| December, selected | 28.9°C23.5°C | 23.5°C | 313 | 27.6 | 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
- Mataram in DecemberIndonesia · 46 kmHigh 28.6°C · Low 24.7°C · 266 mm rain
- Klungkung in DecemberIndonesia · 125 kmHigh 28.9°C · Low 24.7°C · 320 mm rain
- Ubud in DecemberIndonesia · 140 kmHigh 27.9°C · Low 23.5°C · 364 mm rain
- Denpasar in DecemberIndonesia · 145 kmHigh 27.3°C · Low 24.4°C · 248 mm rain
- Sukawati in DecemberIndonesia · 164 kmHigh 27.8°C · Low 24.2°C · 289 mm rain
- Singaraja in DecemberIndonesia · 170 kmHigh 29.0°C · Low 24.6°C · 199 mm rain
- Banjar, Indonesia in DecemberIndonesia · 180 kmHigh 30.2°C · Low 25.4°C · 475 mm rain
- Negara in DecemberIndonesia · 213 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 Selong) is explained once on the Selong year overview and on the Sources, method and limits page.