Climate averages 1991–2020
Pekanbaru weather
by month.
See how the year changes. May (tied with August) has the highest average daily maximum; July has the lowest average monthly rainfall.
Long-term climate patterns, not a forecast for a particular trip.
Across the year Pekanbaru averages a daytime high of 29.9°C and a nighttime low of 23.2°C, with about 2,415 mm of rain on roughly 290 days. May (tied with August) is the warmest month (average high 30.4°C) and December the coolest (28.9°C). November is the wettest month with 298 mm; July is the driest with 124 mm.
The annual picture
A year in Pekanbaru
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 | 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
Nearby cities
- PayakumbuhIndonesia · 121 kmHigh 27.7°C · Low 20.5°C · 2,704 mm rain a year
- DumaiIndonesia · 128 kmHigh 29.9°C · Low 23.8°C · 2,820 mm rain a year
- BukittinggiIndonesia · 150 kmHigh 25.8°C · Low 18.8°C · 4,248 mm rain a year
- SolokIndonesia · 170 kmHigh 27.8°C · Low 21.1°C · 2,049 mm rain a year
- PariamanIndonesia · 194 kmHigh 28.6°C · Low 23.0°C · 4,602 mm rain a year
- PadangIndonesia · 203 kmHigh 28.6°C · Low 23.4°C · 3,898 mm rain a year
- MalaccaMalaysia · 207 kmHigh 29.0°C · Low 25.0°C · 2,222 mm rain a year
- MuarMalaysia · 211 kmHigh 29.1°C · Low 24.7°C · 2,211 mm rain a year
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 limitsWhat do the high and low temperatures mean?
We average the daily maximum and daily minimum for each calendar month over 1991–2020. They are not record extremes, a forecast range or temperatures at a fixed time of day.
How is a rain day counted?
A local calendar day (standard time, UTC+7, no daylight saving) with at least 1 mm of total precipitation counts as one rain day. We count these for each year and month, then average across 30 years. The average does not predict which days will be wet.
Where do the numbers come from?
ERA5-Land (temperature) and ERA5 (precipitation) reanalysis from the Copernicus Climate Change Service, read from the Open-Meteo open-data archive. Temperature comes from the 0.1° model cell at 0.50°, 101.40° (5 km from the city centre). Rain comes from the 0.25° cell at 0.50°, 101.50°. These are model estimates, not weather-station readings; coast, hills and city streets can differ.
Does this page show sunshine, humidity or sea temperature?
No. The data used here contain air temperature and precipitation only. Daylight hours are calculated from the city's latitude (sunrise to sunset), not measured sunshine.