August is one of the warmer months of the year in Rouyn-Noranda, with average highs near 22°C and lows around 11.4°C (mean 16.7°C). It is a relatively wet time of year, averaging 91 mm of rainfall and 79% relative humidity across the period.
August is one of the warmer months of the year in Rouyn-Noranda. Across 45 years of records, the warmest August in Rouyn-Noranda was 2021 — when the month averaged 20.2°C — while the coldest was 1982 at 13.7°C. Typical August days reach 22°C with nights near 11.4°C. The long-term trend is warming, about 0.4°C per decade.
August is a relatively wet time of year in Rouyn-Noranda, averaging 91 mm of rainfall. The wettest August on record was 1988 with 189 mm, while the driest was 2002 at 38 mm.
Relative humidity in Rouyn-Noranda during August averages 79%. The most humid August was 2000 at 85%, and the least humid was 2012 at 71%.
August receives about 4.7 kWh/m²/day of solar energy in Rouyn-Noranda. The sunniest August was 1984 at 5.4 kWh/m²/day, and the cloudiest was 1988 at 3.9.
Average wind speed in Rouyn-Noranda during August is 0.2 m/s. The windiest Augusts were 2023, 2024 and 2025, among others at 0.2 m/s, while the calmest were 2023, 2024 and 2025, among others at 0.2 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 16.0°C | 16.3°C | 16.6°C | 17.3°C | 17.8°C | +1.8°C |
| Avg High | 21.3°C | 21.6°C | 21.7°C | 22.6°C | 23.5°C | +2.2°C |
| Avg Low | 10.8°C | 10.9°C | 11.4°C | 12.0°C | 12.2°C | +1.4°C |
| Avg Rain | 93 mm | 94 mm | 94 mm | 101 mm | 61 mm | -32 mm |
August temperatures in Rouyn-Noranda have risen by about 1.8°C between 1981–1985 and 2021–2025.
August has ranged from a record low of 2.7°C (1986) to a record high of 33.5°C (2007).
Rainfall in August is a relatively wet time of year, averaging 91 mm, with a wettest year of 189 mm.
One of the best times to visit Rouyn-Noranda
August is one of the best times to visit Rouyn-Noranda. Expect days averaging 22°C and nights around 11.4°C (mean 16.7°C) — warmer than Rouyn-Noranda's yearly average — with higher rainfall (91 mm), so conditions are generally comfortable for sightseeing and outdoor plans.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 22.9°C | 17.4°C | 11.9°C | 31.3°C | 4.9°C | 54 mm | 77% | 0.2 m/s | 4.9 |
| 2024 | 24.3°C | 18.3°C | 12.2°C | 31.7°C | 4.9°C | 77 mm | 73% | 0.2 m/s | 4.9 |
| 2023 | 21.7°C | 16.3°C | 11.0°C | 26.3°C | 5.2°C | 83 mm | 78% | 0.2 m/s | 4.5 |
| 2022 | 23.0°C | 17.6°C | 12.2°C | 28.3°C | 7.0°C | 74 mm | 76% | 0.2 m/s | 4.8 |
| 2021 🔥 | 26.0°C | 20.2°C | 14.5°C | 33.2°C | 7.6°C | 39 mm | 73% | 0.2 m/s | 4.8 |
| 2020 | 22.8°C | 17.2°C | 11.6°C | 28.3°C | 5.3°C | 39 mm | 74% | 0.2 m/s | 4.8 |
| 2019 | 21.9°C | 16.7°C | 11.6°C | 26.9°C | 6.0°C | 64 mm | 79% | 0.2 m/s | 4.9 |
| 2018 | 24.7°C | 18.9°C | 13.0°C | 30.3°C | 6.6°C | 89 mm | 75% | 0.2 m/s | 4.6 |
| 2017 | 19.9°C | 15.0°C | 10.2°C | 27.4°C | 5.1°C | 183 mm | 84% | 0.2 m/s | 4.1 |
| 2016 | 24.2°C | 18.9°C | 13.6°C | 30.7°C | 8.5°C | 92 mm | 77% | 0.2 m/s | 4.7 |
| 2015 | 21.8°C | 17.1°C | 12.4°C | 28.2°C | 8.3°C | 94 mm | 82% | 0.2 m/s | 4.2 |
| 2014 | 21.0°C | 16.0°C | 10.9°C | 28.0°C | 4.6°C | 110 mm | 82% | 0.2 m/s | 4.4 |
| 2013 | 21.4°C | 16.3°C | 11.3°C | 28.8°C | 6.8°C | 152 mm | 82% | 0.2 m/s | 4.3 |
| 2012 | 23.9°C | 17.8°C | 11.7°C | 30.9°C | 5.4°C | 76 mm | 71% | 0.2 m/s | 4.7 |
| 2011 | 22.6°C | 17.2°C | 11.8°C | 27.6°C | 6.4°C | 47 mm | 77% | 0.2 m/s | 5 |
| 2010 | 24.2°C | 18.7°C | 13.2°C | 32.1°C | 6.7°C | 102 mm | 74% | 0.2 m/s | 4.4 |
| 2009 | 20.8°C | 16.1°C | 11.3°C | 28.1°C | 3.3°C | 108 mm | 81% | 0.2 m/s | 4.4 |
| 2008 | 21.6°C | 16.4°C | 11.2°C | 26.9°C | 6.2°C | 79 mm | 82% | 0.2 m/s | 4.9 |
| 2007 | 21.9°C | 16.4°C | 10.8°C | 33.5°C | 4.9°C | 111 mm | 76% | 0.2 m/s | 4.6 |
| 2006 | 21.9°C | 16.1°C | 10.3°C | 30.0°C | 3.4°C | 75 mm | 75% | 0.2 m/s | 4.9 |
| 2005 | 23.8°C | 18.2°C | 12.6°C | 30.7°C | 7.3°C | 82 mm | 76% | 0.2 m/s | 5 |
| 2004 | 18.9°C | 14.4°C | 9.9°C | 25.5°C | 3.3°C | 79 mm | 84% | 0.2 m/s | 4 |
| 2003 | 22.6°C | 17.6°C | 12.7°C | 29.1°C | 4.5°C | 132 mm | 82% | 0.2 m/s | 4.3 |
| 2002 | 22.1°C | 17.0°C | 11.9°C | 28.4°C | 5.9°C | 38 mm | 81% | 0.2 m/s | 5.1 |
| 2001 | 22.7°C | 17.6°C | 12.6°C | 29.9°C | 5.7°C | 100 mm | 81% | 0.2 m/s | 4.7 |
| 2000 | 20.4°C | 15.7°C | 11.0°C | 24.6°C | 6.1°C | 132 mm | 85% | 0.2 m/s | 4.3 |
| 1999 | 21.0°C | 15.8°C | 10.5°C | 28.8°C | 4.2°C | 86 mm | 78% | 0.2 m/s | 4.8 |
| 1998 | 22.2°C | 17.0°C | 11.8°C | 27.7°C | 4.8°C | 92 mm | 79% | 0.2 m/s | 4.8 |
| 1997 | 19.3°C | 14.5°C | 9.7°C | 25.8°C | 4.4°C | 115 mm | 82% | 0.2 m/s | 4.5 |
| 1996 | 22.4°C | 16.8°C | 11.1°C | 28.4°C | 5.7°C | 81 mm | 79% | 0.2 m/s | 4.7 |
| 1995 | 23.8°C | 17.8°C | 11.7°C | 31.6°C | 3.4°C | 61 mm | 76% | 0.2 m/s | 4.8 |
| 1994 | 20.1°C | 14.6°C | 9.2°C | 26.0°C | 4.5°C | 87 mm | 80% | 0.2 m/s | 4.6 |
| 1993 | 23.2°C | 18.0°C | 12.7°C | 29.7°C | 4.9°C | 105 mm | 81% | 0.2 m/s | 5 |
| 1992 | 19.9°C | 14.9°C | 9.8°C | 27.5°C | 4.3°C | 119 mm | 81% | 0.2 m/s | 4.4 |
| 1991 | 22.4°C | 17.1°C | 11.8°C | 29.6°C | 3.5°C | 108 mm | 80% | 0.2 m/s | 4.8 |
| 1990 | 22.0°C | 16.6°C | 11.1°C | 27.1°C | 3.4°C | 83 mm | 81% | 0.2 m/s | 4.8 |
| 1989 | 20.5°C | 15.4°C | 10.3°C | 28.5°C | 2.7°C | 117 mm | 84% | 0.2 m/s | 4.3 |
| 1988 🌧️ | 22.4°C | 17.3°C | 12.3°C | 30.7°C | 3.6°C | 189 mm | 84% | 0.2 m/s | 3.9 |
| 1987 | 21.4°C | 15.8°C | 10.2°C | 29.9°C | 3.5°C | 72 mm | 75% | 0.2 m/s | 4.8 |
| 1986 | 20.0°C | 15.0°C | 9.9°C | 26.7°C | 2.7°C | 100 mm | 79% | 0.2 m/s | 4.8 |
| 1985 | 20.6°C | 15.6°C | 10.6°C | 26.7°C | 6.8°C | 64 mm | 83% | 0.2 m/s | 4.8 |
| 1984 | 22.5°C | 16.9°C | 11.4°C | 28.1°C | 4.2°C | 90 mm | 82% | 0.2 m/s | 5.4 |
| 1983 | 23.1°C | 17.7°C | 12.3°C | 27.2°C | 6.8°C | 54 mm | 79% | 0.2 m/s | — |
| 1982 ❄️ | 18.6°C | 13.7°C | 8.8°C | 26.8°C | 3.4°C | 78 mm | 78% | 0.2 m/s | — |
| 1981 | 22.4°C | 17.0°C | 11.6°C | 27.4°C | 6.0°C | 78 mm | 79% | 0.2 m/s | — |
Actual recorded August data for each year, 1981–2025 — sourced from NASA POWER.
The average high in August is around 22°C with lows near 11.4°C (mean 16.7°C), based on 45 years of NASA POWER data.
August averages 91 mm of rainfall in Rouyn-Noranda, a relatively wet time of year. The wettest on record was 189 mm in 1988.
The hottest August reached 33.5°C in 2007. The coldest dipped to 2.7°C in 1986.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average August temperatures have risen by about 1.8°C. Daytime highs moved from 21.4°C to 23.6°C and overnight lows from 10.9°C to 12.4°C over the same span.
August is one of the warmer months of the year in Rouyn-Noranda and a relatively wet time of year, so plan for around 22°C daytime highs and 11.4°C at night.
Not quite — August is the 11th coolest month in Rouyn-Noranda, averaging 16.7°C.
For August in Rouyn-Noranda, pack light layers you can adjust through the day, with typical highs of 22°C and lows of 11.4°C. Bring an umbrella or light rain jacket too.
Relative humidity in August averages 79% — quite humid.
Average wind speed in August is 0.2 m/s. The windiest August on record averaged 0.2 m/s (1981).
The wettest August on record was 1988 with 189 mm. On average, August sees 91 mm.
All figures are derived from NASA POWER (Prediction Of Worldwide Energy Resources), based on MERRA-2 satellite reanalysis, covering 1981–2025.
Explore how the weather in Rouyn-Noranda behaves each August, based on 45 years of NASA POWER climate data from 1981 to 2025. This page breaks down average temperatures, rainfall, humidity, wind and solar radiation for August specifically, along with year-by-year records and how the month has changed over the decades.
