August is one of the warmer months of the year in Campbell River, with average highs near 21.4°C and lows around 12.6°C (mean 17°C). It is one of the drier months, averaging 49 mm of rainfall and 78% relative humidity across the period.
August is one of the warmer months of the year in Campbell River. Across 45 years of records, the warmest August in Campbell River was 2022 — when the month averaged 19.7°C — while the coldest was 1995 at 14.6°C. Typical August days reach 21.4°C with nights near 12.6°C. The long-term trend is warming, about 0.5°C per decade.
August is one of the drier months in Campbell River, averaging 49 mm of rainfall. The wettest August on record was 1991 with 166 mm, while the driest was 2006 at 11 mm.
Relative humidity in Campbell River during August averages 78%. The most humid August was 2013 at 83%, and the least humid was 1994 at 74%.
August receives about 4.9 kWh/m²/day of solar energy in Campbell River. The sunniest August was 2006 at 5.7 kWh/m²/day, and the cloudiest were 1984 and 2001 at 4.1.
Average wind speed in Campbell River during August is 0.6 m/s. The windiest Augusts were 2015, 2016 and 2020, among others at 0.7 m/s, while the calmest were 1988, 1989 and 2004, among others at 0.5 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 16.3°C | 16.8°C | 16.6°C | 17.6°C | 18.3°C | +2°C |
| Avg High | 20.8°C | 21.0°C | 21.0°C | 22.0°C | 22.9°C | +2.1°C |
| Avg Low | 11.8°C | 12.6°C | 12.3°C | 13.2°C | 13.6°C | +1.8°C |
| Avg Rain | 32 mm | 61 mm | 48 mm | 50 mm | 53 mm | +21 mm |
August temperatures in Campbell River have risen by about 2.6°C between 1981–1985 and 2021–2025.
August has ranged from a record low of 7°C (1999) to a record high of 33°C (1981).
Rainfall in August is one of the drier months, averaging 49 mm, with a wettest year of 166 mm.
One of the best times to visit Campbell River
August is one of the best times to visit Campbell River. Expect days averaging 21.4°C and nights around 12.6°C (mean 17°C) — warmer than Campbell River's yearly average — with moderate rainfall (49 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 | 23.1°C | 18.5°C | 13.8°C | 30.0°C | 10.0°C | 76 mm | 79% | 0.6 m/s | 5 |
| 2024 | 23.1°C | 18.6°C | 14.1°C | 28.9°C | 8.6°C | 57 mm | 76% | 0.6 m/s | 4.9 |
| 2023 | 23.7°C | 18.7°C | 13.8°C | 30.2°C | 10.2°C | 50 mm | 74% | 0.6 m/s | 5.1 |
| 2022 🔥 | 24.5°C | 19.7°C | 14.8°C | 30.1°C | 11.2°C | 25 mm | 76% | 0.6 m/s | 5.3 |
| 2021 | 22.9°C | 18.2°C | 13.4°C | 33.0°C | 7.7°C | 28 mm | 75% | 0.6 m/s | 5 |
| 2020 | 20.0°C | 15.9°C | 11.8°C | 26.5°C | 8.6°C | 81 mm | 80% | 0.7 m/s | 4.7 |
| 2019 | 21.8°C | 17.7°C | 13.6°C | 28.3°C | 9.7°C | 76 mm | 78% | 0.6 m/s | 4.9 |
| 2018 | 23.3°C | 18.6°C | 14.0°C | 31.2°C | 10.0°C | 36 mm | 75% | 0.6 m/s | 5.4 |
| 2017 | 23.4°C | 18.6°C | 13.8°C | 30.6°C | 9.5°C | 25 mm | 78% | 0.6 m/s | 5.2 |
| 2016 | 21.6°C | 17.2°C | 12.9°C | 28.0°C | 10.0°C | 70 mm | 82% | 0.7 m/s | 5 |
| 2015 | 21.5°C | 17.2°C | 12.9°C | 27.7°C | 10.0°C | 77 mm | 77% | 0.7 m/s | 5 |
| 2014 | 23.4°C | 18.6°C | 13.9°C | 29.8°C | 11.4°C | 35 mm | 78% | 0.6 m/s | 5.4 |
| 2013 | 21.0°C | 17.3°C | 13.6°C | 26.0°C | 10.0°C | 97 mm | 83% | 0.6 m/s | 4.4 |
| 2012 | 21.9°C | 17.5°C | 13.0°C | 31.3°C | 8.6°C | 22 mm | 77% | 0.6 m/s | 5 |
| 2011 | 20.5°C | 16.2°C | 11.9°C | 24.8°C | 9.2°C | 29 mm | 79% | 0.6 m/s | 5.1 |
| 2010 | 21.6°C | 17.0°C | 12.4°C | 30.0°C | 8.2°C | 34 mm | 76% | 0.6 m/s | 5.2 |
| 2009 | 21.1°C | 16.8°C | 12.6°C | 28.2°C | 9.4°C | 30 mm | 78% | 0.6 m/s | 5 |
| 2008 | 20.3°C | 16.0°C | 11.7°C | 29.7°C | 7.1°C | 95 mm | 80% | 0.7 m/s | 4.5 |
| 2007 | 20.1°C | 16.1°C | 12.0°C | 27.4°C | 9.5°C | 51 mm | 78% | 0.6 m/s | 4.7 |
| 2006 | 20.5°C | 15.8°C | 11.0°C | 24.9°C | 8.0°C | 11 mm | 79% | 0.6 m/s | 5.7 |
| 2005 | 22.2°C | 17.6°C | 13.0°C | 27.9°C | 9.4°C | 43 mm | 79% | 0.6 m/s | 5.4 |
| 2004 | 22.9°C | 18.6°C | 14.3°C | 30.4°C | 11.5°C | 85 mm | 77% | 0.5 m/s | 4.6 |
| 2003 | 21.5°C | 17.1°C | 12.7°C | 27.7°C | 9.1°C | 16 mm | 76% | 0.6 m/s | 5.1 |
| 2002 | 21.6°C | 16.8°C | 12.0°C | 27.4°C | 9.3°C | 16 mm | 78% | 0.6 m/s | 5.3 |
| 2001 | 19.8°C | 16.0°C | 12.3°C | 27.7°C | 9.8°C | 92 mm | 83% | 0.7 m/s | 4.1 |
| 2000 | 19.7°C | 15.5°C | 11.2°C | 28.0°C | 8.5°C | 37 mm | 81% | 0.6 m/s | 5.1 |
| 1999 | 20.9°C | 17.1°C | 13.2°C | 26.3°C | 7.0°C | 61 mm | 80% | 0.6 m/s | 4.6 |
| 1998 | 21.6°C | 17.1°C | 12.6°C | 27.5°C | 9.8°C | 16 mm | 78% | 0.6 m/s | 5.1 |
| 1997 | 21.9°C | 17.9°C | 14.0°C | 29.6°C | 11.2°C | 84 mm | 78% | 0.6 m/s | 5.2 |
| 1996 | 20.5°C | 16.1°C | 11.7°C | 26.8°C | 9.0°C | 55 mm | 80% | 0.6 m/s | 4.5 |
| 1995 ❄️ | 18.5°C | 14.6°C | 10.8°C | 24.2°C | 8.6°C | 60 mm | 79% | 0.6 m/s | 4.8 |
| 1994 | 21.2°C | 17.1°C | 13.0°C | 25.6°C | 9.8°C | 48 mm | 74% | 0.6 m/s | 4.4 |
| 1993 | 21.5°C | 17.0°C | 12.5°C | 30.9°C | 7.4°C | 53 mm | 77% | 0.6 m/s | 5 |
| 1992 | 21.2°C | 16.7°C | 12.2°C | 29.0°C | 8.0°C | 35 mm | 76% | 0.6 m/s | 5.3 |
| 1991 🌧️ | 20.6°C | 16.6°C | 12.6°C | 27.1°C | 8.9°C | 166 mm | 82% | 0.7 m/s | 4.7 |
| 1990 | 21.9°C | 17.5°C | 13.1°C | 29.6°C | 9.6°C | 33 mm | 77% | 0.6 m/s | 4.8 |
| 1989 | 20.4°C | 16.0°C | 11.7°C | 24.6°C | 9.2°C | 55 mm | 80% | 0.5 m/s | 4.6 |
| 1988 | 20.4°C | 16.1°C | 11.7°C | 26.2°C | 9.0°C | 36 mm | 80% | 0.5 m/s | 4.6 |
| 1987 | 21.1°C | 16.2°C | 11.3°C | 28.6°C | 7.8°C | 16 mm | 77% | 0.5 m/s | 5.3 |
| 1986 | 23.5°C | 18.3°C | 13.1°C | 32.0°C | 8.7°C | 14 mm | 75% | 0.5 m/s | 5.5 |
| 1985 | 20.2°C | 15.6°C | 11.0°C | 25.3°C | 8.0°C | 20 mm | 75% | 0.6 m/s | 5 |
| 1984 | 18.7°C | 14.8°C | 10.8°C | 23.2°C | 8.4°C | 35 mm | 79% | 0.6 m/s | 4.1 |
| 1983 | 20.6°C | 16.2°C | 11.8°C | 27.1°C | 9.6°C | 39 mm | 76% | 0.6 m/s | — |
| 1982 | 19.5°C | 15.5°C | 11.5°C | 26.6°C | 8.3°C | 34 mm | 78% | 0.6 m/s | — |
| 1981 | 22.9°C | 18.3°C | 13.7°C | 33.0°C | 9.7°C | 40 mm | 76% | 0.6 m/s | — |
Actual recorded August data for each year, 1981–2025 — sourced from NASA POWER.
The average high in August is around 21.4°C with lows near 12.6°C (mean 17°C), based on 45 years of NASA POWER data.
August averages 49 mm of rainfall in Campbell River, one of the drier months. The wettest on record was 166 mm in 1991.
The hottest August reached 33°C in 1981. The coldest dipped to 7°C in 1999.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average August temperatures have risen by about 2.6°C. Daytime highs moved from 20.4°C to 23.5°C and overnight lows from 11.8°C to 14°C over the same span.
August is one of the warmer months of the year in Campbell River and one of the drier months, so plan for around 21.4°C daytime highs and 12.6°C at night.
Not quite — August is the 12th coolest month in Campbell River, averaging 17°C.
For August in Campbell River, pack light layers you can adjust through the day, with typical highs of 21.4°C and lows of 12.6°C.
Relative humidity in August averages 78% — quite humid.
Average wind speed in August is 0.6 m/s. The windiest August on record averaged 0.7 m/s (1991).
The wettest August on record was 1991 with 166 mm. On average, August sees 49 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 Campbell River 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.
