Climate averages 1991–2020
Sibu weather
in August.
A hot, very wet month: one of the warmest and the 3rd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a hot month in Sibu: daytime highs average 30.5°C and nights cool to about 23.5°C. By daytime temperature it is one of the warmest months of the year.
Expect about 192 mm of rain on roughly 21 days, which makes August a very wet month (the 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 11 min on an average August day.
The nearest other city in this atlas is Bintulu (166 km away). In August its highs average 30.7°C, about as warm as Sibu, with 196 mm of rain.
Among the 72 cities listed in Malaysia, Sibu ranks joint 9th of 72 for the warmest August highs and joint 47th of 72 for the driest August (rainfall, lowest first). The mean August high of those 72 cities is 29.8°C; Sibu is 0.8°C warmer than that mean.
From August to September, average highs fall by 0.2°C to 30.3°C, and monthly rainfall rises from 192 mm to 242 mm.
The annual picture
August 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
Sibu climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 29.2°C22.9°C | 22.9°C | 312 | 27.8 | 12.012 h |
| February | 29.6°C23.0°C | 23.0°C | 243 | 24.1 | 12.012 h |
| March | 30.2°C23.3°C | 23.3°C | 227 | 26.0 | 12.112 h |
| April | 30.5°C23.6°C | 23.6°C | 230 | 26.8 | 12.212 h |
| May | 30.5°C23.9°C | 23.9°C | 218 | 25.8 | 12.212 h |
| June | 30.4°C23.7°C | 23.7°C | 177 | 21.2 | 12.312 h |
| July | 30.3°C23.5°C | 23.5°C | 174 | 20.7 | 12.212 h |
| August, selected | 30.5°C23.5°C | 23.5°C | 192 | 21.2 | 12.212 h |
| September | 30.3°C23.4°C | 23.4°C | 242 | 24.6 | 12.112 h |
| October | 29.9°C23.3°C | 23.3°C | 280 | 28.0 | 12.112 h |
| November | 29.5°C23.2°C | 23.2°C | 307 | 28.7 | 12.012 h |
| December | 29.2°C23.0°C | 23.0°C | 344 | 29.0 | 12.012 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
August in nearby cities
- Bintulu in AugustMalaysia · 166 kmHigh 30.7°C · Low 23.8°C · 196 mm rain
- Kuching in AugustMalaysia · 185 kmHigh 30.5°C · Low 24.0°C · 200 mm rain
- Sintang in AugustIndonesia · 251 kmHigh 30.6°C · Low 23.4°C · 165 mm rain
- Miri in AugustMalaysia · 336 kmHigh 29.4°C · Low 25.0°C · 183 mm rain
- Marudi in AugustMalaysia · 348 kmHigh 30.9°C · Low 23.5°C · 221 mm rain
- Singkawang in AugustIndonesia · 351 kmHigh 29.6°C · Low 24.6°C · 163 mm rain
- Pontianak in AugustIndonesia · 379 kmHigh 30.5°C · Low 23.9°C · 141 mm rain
- Bandar Seri Begawan in AugustBrunei · 451 kmHigh 30.2°C · Low 24.6°C · 182 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 Sibu) is explained once on the Sibu year overview and on the Sources, method and limits page.