Climate averages 1991–2020
Bintulu weather
in December.
A hot, very wet month: the 11th warmest and the wettest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a hot month in Bintulu: daytime highs average 29.3°C and nights cool to about 23.3°C. By daytime temperature it is the 11th warmest of the 12 months.
Expect about 348 mm of rain on roughly 29 days, which makes December a very wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 11 h 57 min on an average December day.
The nearest other city in this atlas is Sibu (166 km away). In December its highs average 29.2°C, about as warm as Bintulu, with 344 mm of rain.
Among the 72 cities listed in Malaysia, Bintulu ranks joint 2nd of 72 for the warmest December highs and 64th of 72 for the driest December (rainfall, lowest first). The mean December high of those 72 cities is 28.5°C; Bintulu is 0.8°C warmer than that mean.
From December to January, average highs fall by 0.1°C to 29.1°C, and monthly rainfall falls from 348 mm to 299 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
Bintulu climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 29.1°C23.2°C | 23.2°C | 299 | 26.2 | 12.012 h |
| February | 29.4°C23.3°C | 23.3°C | 193 | 21.8 | 12.012 h |
| March | 30.1°C23.5°C | 23.5°C | 165 | 22.6 | 12.112 h |
| April | 30.5°C23.8°C | 23.8°C | 188 | 24.2 | 12.212 h |
| May | 30.7°C24.2°C | 24.2°C | 183 | 22.7 | 12.312 h |
| June | 30.6°C24.0°C | 24.0°C | 177 | 20.4 | 12.312 h |
| July | 30.5°C23.8°C | 23.8°C | 170 | 19.6 | 12.312 h |
| August | 30.7°C23.8°C | 23.8°C | 196 | 21.0 | 12.212 h |
| September | 30.4°C23.6°C | 23.6°C | 213 | 23.8 | 12.112 h |
| October | 29.8°C23.4°C | 23.4°C | 274 | 27.3 | 12.012 h |
| November | 29.6°C23.3°C | 23.3°C | 291 | 28.4 | 12.012 h |
| December, selected | 29.3°C23.3°C | 23.3°C | 348 | 28.7 | 11.912 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
- Sibu in DecemberMalaysia · 166 kmHigh 29.2°C · Low 23.0°C · 344 mm rain
- Miri in DecemberMalaysia · 173 kmHigh 28.4°C · Low 24.2°C · 293 mm rain
- Marudi in DecemberMalaysia · 182 kmHigh 29.8°C · Low 23.1°C · 312 mm rain
- Bandar Seri Begawan in DecemberBrunei · 285 kmHigh 28.9°C · Low 24.0°C · 222 mm rain
- Labuan in DecemberMalaysia · 340 kmHigh 28.5°C · Low 24.8°C · 187 mm rain
- Kuching in DecemberMalaysia · 350 kmHigh 28.8°C · Low 23.6°C · 423 mm rain
- Sintang in DecemberIndonesia · 385 kmHigh 29.7°C · Low 23.2°C · 267 mm rain
- Keningau in DecemberMalaysia · 422 kmHigh 28.7°C · Low 21.5°C · 162 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 Bintulu) is explained once on the Bintulu year overview and on the Sources, method and limits page.