| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 31.6° | 22.7° | 96.9mm | 10.3 | 61 |
| February | 32.2° | 22.9° | 57.9mm | 7.8 | 64 |
| March | 33° | 23.5° | 98.9mm | 6 | 64 |
| April | 33.3° | 23.5° | 67.8mm | 7.7 | 59 |
| May | 33.4° | 23.2° | 61.2mm | 7 | 60 |
| June | 33.1° | 23.1° | 37.7mm | 4 | 68 |
| July | 33° | 22.5° | 65.4mm | 3.5 | 69 |
| August | 32.8° | 22° | 63.9mm | 5.3 | 66 |
| September | 32.7° | 22.7° | 113.6mm | 6.7 | 64 |
| October | 32.8° | 23° | 138.2mm | 9.3 | 58 |
| November | 32.5° | 22.6° | 201.4mm | 11 | 56 |
| December | 31.7° | 23.1° | 82.6mm | 8.3 | 65 |
January in Pekanbaru averages a daily high of 31.6°C with nights around 22.7°C. Expect roughly 10.3 wet days totalling 96.9mm. Generally workable, with some weather to plan around.
February in Pekanbaru averages a daily high of 32.2°C with nights around 22.9°C. Expect roughly 7.8 wet days totalling 57.9mm. Generally workable, with some weather to plan around.
March in Pekanbaru averages a daily high of 33°C with nights around 23.5°C. Expect roughly 6 wet days totalling 98.9mm. Generally workable, with some weather to plan around.
April in Pekanbaru averages a daily high of 33.3°C with nights around 23.5°C. Expect roughly 7.7 wet days totalling 67.8mm. Generally workable, with some weather to plan around.
May in Pekanbaru averages a daily high of 33.4°C with nights around 23.2°C. Expect roughly 7 wet days totalling 61.2mm. Generally workable, with some weather to plan around.
June in Pekanbaru averages a daily high of 33.1°C with nights around 23.1°C. Expect roughly 4 wet days totalling 37.7mm. Generally workable, with some weather to plan around.
July in Pekanbaru averages a daily high of 33°C with nights around 22.5°C. Expect roughly 3.5 wet days totalling 65.4mm. Generally workable, with some weather to plan around.
August in Pekanbaru averages a daily high of 32.8°C with nights around 22°C. Expect roughly 5.3 wet days totalling 63.9mm. Generally workable, with some weather to plan around.
September in Pekanbaru averages a daily high of 32.7°C with nights around 22.7°C. Expect roughly 6.7 wet days totalling 113.6mm. Generally workable, with some weather to plan around.
October in Pekanbaru averages a daily high of 32.8°C with nights around 23°C. Expect roughly 9.3 wet days totalling 138.2mm. Generally workable, with some weather to plan around.
November in Pekanbaru averages a daily high of 32.5°C with nights around 22.6°C. Expect roughly 11 wet days totalling 201.4mm. Generally workable, with some weather to plan around.
December in Pekanbaru averages a daily high of 31.7°C with nights around 23.1°C. Expect roughly 8.3 wet days totalling 82.6mm. Generally workable, with some weather to plan around.
Each month scores out of 100. It starts at 100 and loses points for daytime highs outside a 20–27°C band, for wet days, and for nights below 2°C. Nothing else is weighted in — no crowd data, no prices, no opinion. Pekanbaru peaks at 69.
Based on 30 years of records, June–September scores highest for comfort in Pekanbaru, balancing daytime temperature against rainfall.
May is the warmest, averaging a daily high of 33.4°C.
November is the wettest, averaging 201.4mm of rain across roughly 11 wet days.
January is the coolest month, with average daily highs around 31.6°C.