Climate averages 1991–2020
Pekanbaru weather
in August.
A hot, 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 Pekanbaru: daytime highs average 30.4°C and nights cool to about 23.2°C. By daytime temperature it is one of the warmest months of the year.
Expect about 157 mm of rain on roughly 22 days, which makes August a wet month (the 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 08 min on an average August day.
The nearest other city in this atlas is Payakumbuh (121 km away). In August its highs average 28.0°C, 2.4°C cooler than Pekanbaru, with 178 mm of rain.
Among the 200 cities listed in Indonesia, Pekanbaru ranks joint 71st of 200 for the warmest August highs and 164th of 200 for the driest August (rainfall, lowest first). The mean August high of those 200 cities is 29.5°C; Pekanbaru is 0.9°C warmer than that mean.
From August to September, average highs fall by 0.1°C to 30.3°C, and monthly rainfall rises from 157 mm to 195 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
Pekanbaru climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 29.0°C22.7°C | 22.7°C | 210 | 24.2 | 12.112 h |
| February | 29.6°C22.9°C | 22.9°C | 159 | 21.3 | 12.112 h |
| March | 30.0°C23.2°C | 23.2°C | 213 | 26.1 | 12.112 h |
| April | 30.2°C23.5°C | 23.5°C | 233 | 27.8 | 12.112 h |
| May | 30.4°C23.9°C | 23.9°C | 191 | 24.9 | 12.112 h |
| June | 30.3°C23.7°C | 23.7°C | 131 | 19.6 | 12.212 h |
| July | 30.2°C23.3°C | 23.3°C | 124 | 19.0 | 12.112 h |
| August, selected | 30.4°C23.2°C | 23.2°C | 157 | 22.0 | 12.112 h |
| September | 30.3°C23.1°C | 23.1°C | 195 | 23.8 | 12.112 h |
| October | 30.1°C23.1°C | 23.1°C | 241 | 27.0 | 12.112 h |
| November | 29.3°C23.0°C | 23.0°C | 298 | 27.9 | 12.112 h |
| December | 28.9°C22.9°C | 22.9°C | 263 | 26.8 | 12.112 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
- Payakumbuh in AugustIndonesia · 121 kmHigh 28.0°C · Low 20.3°C · 178 mm rain
- Dumai in AugustIndonesia · 128 kmHigh 30.3°C · Low 23.8°C · 195 mm rain
- Bukittinggi in AugustIndonesia · 150 kmHigh 25.8°C · Low 18.5°C · 363 mm rain
- Solok in AugustIndonesia · 170 kmHigh 28.2°C · Low 21.1°C · 137 mm rain
- Pariaman in AugustIndonesia · 194 kmHigh 28.4°C · Low 22.8°C · 382 mm rain
- Padang in AugustIndonesia · 203 kmHigh 28.4°C · Low 23.2°C · 319 mm rain
- Malacca in AugustMalaysia · 207 kmHigh 28.7°C · Low 25.1°C · 193 mm rain
- Muar in AugustMalaysia · 211 kmHigh 28.8°C · Low 24.9°C · 185 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 Pekanbaru) is explained once on the Pekanbaru year overview and on the Sources, method and limits page.