August is one of the warmer months of the year in Corner Brook, with average highs near 19.2°C and lows around 12.4°C (mean 15.8°C). It is about average for rainfall, averaging 117 mm of rainfall and 85% relative humidity across the period.
August is one of the warmer months of the year in Corner Brook. Across 45 years of records, the warmest August in Corner Brook was 2022 — when the month averaged 18.1°C — while the coldest was 1982 at 14.1°C. Typical August days reach 19.2°C with nights near 12.4°C. The long-term trend is warming, about 0.5°C per decade.
August is about average for rainfall in Corner Brook, averaging 117 mm of rainfall. The wettest August on record was 1989 with 236 mm, while the driest was 2010 at 39 mm.
Relative humidity in Corner Brook during August averages 85%. The most humid August was 1992 at 88%, and the least humid was 2025 at 83%.
August receives about 4.4 kWh/m²/day of solar energy in Corner Brook. The sunniest August was 2025 at 5.2 kWh/m²/day, and the cloudiest was 2008 at 3.7.
Average wind speed in Corner Brook during August is 1.3 m/s. The windiest Augusts were 1982 and 2020 at 1.5 m/s, while the calmest was 1985 at 1.1 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 15.1°C | 15.0°C | 15.8°C | 16.6°C | 16.7°C | +1.6°C |
| Avg High | 18.6°C | 18.5°C | 19.2°C | 20.0°C | 20.2°C | +1.6°C |
| Avg Low | 11.7°C | 11.5°C | 12.4°C | 13.2°C | 13.3°C | +1.6°C |
| Avg Rain | 130 mm | 128 mm | 129 mm | 97 mm | 92 mm | -38 mm |
August temperatures in Corner Brook have risen by about 1.9°C between 1981–1985 and 2021–2025.
August has ranged from a record low of 4.2°C (2002) to a record high of 26.5°C (2021).
Rainfall in August is about average for rainfall, averaging 117 mm, with a wettest year of 236 mm.
One of the best times to visit Corner Brook
August is one of the best times to visit Corner Brook. Expect days averaging 19.2°C and nights around 12.4°C (mean 15.8°C) — warmer than Corner Brook's yearly average — with higher rainfall (117 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 | 19.5°C | 15.9°C | 12.3°C | 25.9°C | 8.6°C | 53 mm | 83% | 1.3 m/s | 5.2 |
| 2024 | 20.6°C | 17.3°C | 14.0°C | 25.5°C | 9.0°C | 108 mm | 85% | 1.4 m/s | 4.5 |
| 2023 | 19.2°C | 16.0°C | 12.7°C | 24.3°C | 7.5°C | 116 mm | 86% | 1.4 m/s | 4.1 |
| 2022 🔥 | 21.5°C | 18.1°C | 14.7°C | 24.1°C | 10.4°C | 85 mm | 85% | 1.3 m/s | 4.5 |
| 2021 | 20.7°C | 17.0°C | 13.4°C | 26.5°C | 8.7°C | 76 mm | 85% | 1.3 m/s | 4.7 |
| 2020 | 19.7°C | 16.1°C | 12.5°C | 25.0°C | 8.7°C | 114 mm | 84% | 1.5 m/s | 4.8 |
| 2019 | 20.1°C | 16.7°C | 13.3°C | 23.6°C | 9.0°C | 59 mm | 84% | 1.4 m/s | 4.7 |
| 2018 | 21.3°C | 17.8°C | 14.2°C | 25.0°C | 9.2°C | 91 mm | 86% | 1.2 m/s | 4.3 |
| 2017 | 19.1°C | 15.6°C | 12.1°C | 22.5°C | 8.9°C | 110 mm | 85% | 1.4 m/s | 4.5 |
| 2016 | 19.0°C | 15.8°C | 12.7°C | 22.8°C | 8.4°C | 116 mm | 85% | 1.4 m/s | 4.1 |
| 2015 | 21.1°C | 17.7°C | 14.2°C | 24.4°C | 9.9°C | 127 mm | 87% | 1.2 m/s | 4.5 |
| 2014 | 20.0°C | 16.7°C | 13.5°C | 23.5°C | 8.5°C | 83 mm | 85% | 1.3 m/s | 4 |
| 2013 | 19.2°C | 15.8°C | 12.4°C | 24.5°C | 6.6°C | 120 mm | 85% | 1.4 m/s | 4.6 |
| 2012 | 20.8°C | 17.6°C | 14.4°C | 24.4°C | 11.0°C | 149 mm | 86% | 1.3 m/s | 3.8 |
| 2011 | 19.5°C | 16.0°C | 12.6°C | 24.8°C | 8.1°C | 74 mm | 86% | 1.2 m/s | 4.4 |
| 2010 | 20.1°C | 16.4°C | 12.8°C | 23.4°C | 9.4°C | 39 mm | 83% | 1.2 m/s | 4.6 |
| 2009 | 19.0°C | 15.8°C | 12.5°C | 23.5°C | 7.4°C | 182 mm | 85% | 1.4 m/s | 4.3 |
| 2008 | 19.4°C | 16.2°C | 13.0°C | 23.1°C | 10.1°C | 112 mm | 87% | 1.3 m/s | 3.7 |
| 2007 | 18.1°C | 15.0°C | 11.8°C | 21.6°C | 8.7°C | 228 mm | 87% | 1.4 m/s | 4 |
| 2006 | 18.2°C | 14.8°C | 11.4°C | 22.4°C | 7.4°C | 130 mm | 84% | 1.4 m/s | 4.2 |
| 2005 | 18.9°C | 15.5°C | 12.1°C | 21.8°C | 9.3°C | 110 mm | 86% | 1.2 m/s | 4.5 |
| 2004 | 20.1°C | 16.7°C | 13.3°C | 23.1°C | 8.5°C | 130 mm | 87% | 1.2 m/s | 4.4 |
| 2003 | 19.2°C | 15.6°C | 12.0°C | 23.0°C | 8.1°C | 83 mm | 84% | 1.3 m/s | 4.5 |
| 2002 | 19.1°C | 15.5°C | 12.0°C | 25.1°C | 4.2°C | 131 mm | 86% | 1.3 m/s | 4.5 |
| 2001 | 19.8°C | 16.2°C | 12.6°C | 24.5°C | 6.0°C | 72 mm | 84% | 1.3 m/s | 4.7 |
| 2000 | 19.9°C | 16.4°C | 13.0°C | 23.4°C | 9.9°C | 114 mm | 86% | 1.2 m/s | 4.4 |
| 1999 | 19.3°C | 15.7°C | 12.1°C | 23.7°C | 8.8°C | 187 mm | 86% | 1.4 m/s | 4.3 |
| 1998 | 18.1°C | 14.9°C | 11.6°C | 23.5°C | 9.1°C | 191 mm | 88% | 1.4 m/s | 4.4 |
| 1997 | 17.5°C | 14.2°C | 10.9°C | 22.2°C | 8.0°C | 149 mm | 87% | 1.2 m/s | 4.1 |
| 1996 | 19.9°C | 16.2°C | 12.4°C | 25.5°C | 9.1°C | 43 mm | 85% | 1.2 m/s | 4.8 |
| 1995 | 18.1°C | 14.5°C | 11.0°C | 24.3°C | 5.3°C | 112 mm | 84% | 1.4 m/s | 4.4 |
| 1994 | 18.6°C | 15.2°C | 11.8°C | 24.4°C | 8.1°C | 78 mm | 85% | 1.3 m/s | 5 |
| 1993 | 18.1°C | 14.7°C | 11.4°C | 23.0°C | 7.2°C | 100 mm | 84% | 1.2 m/s | 4.6 |
| 1992 | 17.5°C | 14.2°C | 11.0°C | 20.3°C | 7.9°C | 167 mm | 88% | 1.4 m/s | 4.1 |
| 1991 | 18.0°C | 14.3°C | 10.5°C | 23.8°C | 7.1°C | 145 mm | 86% | 1.3 m/s | 4.4 |
| 1990 | 20.3°C | 16.5°C | 12.7°C | 24.2°C | 8.1°C | 105 mm | 85% | 1.3 m/s | 4.7 |
| 1989 🌧️ | 18.9°C | 15.8°C | 12.7°C | 23.7°C | 6.4°C | 236 mm | 87% | 1.4 m/s | 4.2 |
| 1988 | 18.7°C | 15.2°C | 11.7°C | 23.1°C | 8.5°C | 92 mm | 84% | 1.2 m/s | 4.5 |
| 1987 | 18.2°C | 14.7°C | 11.2°C | 21.1°C | 8.2°C | 98 mm | 84% | 1.3 m/s | 4.5 |
| 1986 | 18.7°C | 15.3°C | 11.9°C | 22.8°C | 8.4°C | 124 mm | 85% | 1.2 m/s | 4.6 |
| 1985 | 18.4°C | 14.9°C | 11.5°C | 24.0°C | 8.7°C | 72 mm | 85% | 1.1 m/s | 4.4 |
| 1984 | 20.6°C | 16.7°C | 12.9°C | 23.7°C | 6.5°C | 111 mm | 86% | 1.2 m/s | 4.7 |
| 1983 | 17.9°C | 14.2°C | 10.5°C | 22.3°C | 6.0°C | 196 mm | 87% | 1.3 m/s | — |
| 1982 ❄️ | 17.2°C | 14.1°C | 11.0°C | 22.4°C | 8.2°C | 110 mm | 83% | 1.5 m/s | — |
| 1981 | 18.6°C | 15.1°C | 11.6°C | 21.9°C | 5.5°C | 127 mm | 87% | 1.3 m/s | — |
Actual recorded August data for each year, 1981–2025 — sourced from NASA POWER.
The average high in August is around 19.2°C with lows near 12.4°C (mean 15.8°C), based on 45 years of NASA POWER data.
August averages 117 mm of rainfall in Corner Brook, about average for rainfall. The wettest on record was 236 mm in 1989.
The hottest August reached 26.5°C in 2021. The coldest dipped to 4.2°C in 2002.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average August temperatures have risen by about 1.9°C. Daytime highs moved from 18.5°C to 20.3°C and overnight lows from 11.5°C to 13.4°C over the same span.
August is one of the warmer months of the year in Corner Brook and about average for rainfall, so plan for around 19.2°C daytime highs and 12.4°C at night.
Not quite — August is the 12th coolest month in Corner Brook, averaging 15.8°C.
For August in Corner Brook, pack light layers you can adjust through the day, with typical highs of 19.2°C and lows of 12.4°C. Bring an umbrella or light rain jacket too.
Relative humidity in August averages 85% — quite humid.
Average wind speed in August is 1.3 m/s. The windiest August on record averaged 1.5 m/s (1982).
The wettest August on record was 1989 with 236 mm. On average, August sees 117 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 Corner Brook 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.
