August is one of the warmer months of the year in Conception Bay South, with average highs near 20°C and lows around 12.5°C (mean 16.3°C). It is one of the drier months, averaging 88 mm of rainfall and 86% relative humidity across the period.
August is one of the warmer months of the year in Conception Bay South. Across 45 years of records, the warmest August in Conception Bay South was 2022 — when the month averaged 18.6°C — while the coldest was 1991 at 14.3°C. Typical August days reach 20°C with nights near 12.5°C. The long-term trend is warming, about 0.4°C per decade.
August is one of the drier months in Conception Bay South, averaging 88 mm of rainfall. The wettest August on record was 2023 with 151 mm, while the driest was 2002 at 42 mm.
Relative humidity in Conception Bay South during August averages 86%. The most humid August was 2008 at 89%, and the least humid was 2025 at 83%.
August receives about 4.4 kWh/m²/day of solar energy in Conception Bay South. The sunniest Augusts were 1984 and 2020 at 5 kWh/m²/day, and the cloudiest were 2008 and 2014 at 3.7.
Average wind speed in Conception Bay South during August is 1.3 m/s. The windiest August was 2013 at 1.6 m/s, while the calmest was 1996 at 1.1 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 15.6°C | 15.9°C | 16.4°C | 16.6°C | 17.2°C | +1.6°C |
| Avg High | 19.5°C | 19.7°C | 20.1°C | 20.1°C | 21.0°C | +1.5°C |
| Avg Low | 11.6°C | 12.1°C | 12.7°C | 13.0°C | 13.4°C | +1.8°C |
| Avg Rain | 84 mm | 78 mm | 93 mm | 90 mm | 99 mm | +15 mm |
August temperatures in Conception Bay South have risen by about 1.9°C between 1981–1985 and 2021–2025.
August has ranged from a record low of 5.8°C (1983) to a record high of 27.5°C (2021).
Rainfall in August is one of the drier months, averaging 88 mm, with a wettest year of 151 mm.
Daytime highs and overnight lows have shifted differently — highs rose about 0.3°C per decade while lows rose 0.5°C per decade, narrowing the gap between day and night.
One of the best times to visit Conception Bay South
August is one of the best times to visit Conception Bay South. Expect days averaging 20°C and nights around 12.5°C (mean 16.3°C) — warmer than Conception Bay South's yearly average — with higher rainfall (88 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 | 20.3°C | 16.2°C | 12.0°C | 25.9°C | 8.0°C | 70 mm | 83% | 1.3 m/s | 4.9 |
| 2024 | 21.8°C | 17.9°C | 14.1°C | 26.2°C | 8.6°C | 102 mm | 86% | 1.4 m/s | 4.4 |
| 2023 🌧️ | 19.7°C | 16.4°C | 13.1°C | 24.5°C | 10.7°C | 151 mm | 89% | 1.2 m/s | 4.1 |
| 2022 🔥 | 22.2°C | 18.6°C | 15.0°C | 25.9°C | 12.2°C | 112 mm | 86% | 1.2 m/s | 4.4 |
| 2021 | 20.7°C | 16.8°C | 12.8°C | 27.5°C | 7.8°C | 78 mm | 85% | 1.5 m/s | 4.7 |
| 2020 | 21.2°C | 17.2°C | 13.2°C | 25.7°C | 9.2°C | 83 mm | 84% | 1.4 m/s | 5 |
| 2019 | 20.8°C | 16.9°C | 13.1°C | 25.3°C | 7.7°C | 55 mm | 86% | 1.2 m/s | 4.5 |
| 2018 | 21.3°C | 17.4°C | 13.5°C | 26.7°C | 10.0°C | 80 mm | 87% | 1.2 m/s | 4.5 |
| 2017 | 19.6°C | 16.0°C | 12.5°C | 23.4°C | 9.0°C | 108 mm | 86% | 1.3 m/s | 4.6 |
| 2016 | 19.7°C | 16.1°C | 12.5°C | 23.6°C | 8.1°C | 106 mm | 85% | 1.5 m/s | 4.5 |
| 2015 | 20.6°C | 16.9°C | 13.2°C | 23.9°C | 10.2°C | 62 mm | 88% | 1.3 m/s | 4.5 |
| 2014 | 19.5°C | 16.7°C | 14.0°C | 25.0°C | 6.4°C | 107 mm | 88% | 1.5 m/s | 3.7 |
| 2013 | 19.8°C | 16.3°C | 12.9°C | 23.9°C | 5.8°C | 129 mm | 86% | 1.6 m/s | 4.4 |
| 2012 | 21.7°C | 18.1°C | 14.5°C | 25.5°C | 11.2°C | 85 mm | 86% | 1.4 m/s | 4.3 |
| 2011 | 18.3°C | 14.9°C | 11.5°C | 23.7°C | 8.3°C | 94 mm | 89% | 1.3 m/s | 4.1 |
| 2010 | 19.8°C | 16.2°C | 12.6°C | 23.1°C | 9.8°C | 70 mm | 87% | 1.2 m/s | 4.2 |
| 2009 | 20.5°C | 16.7°C | 12.9°C | 24.3°C | 8.3°C | 123 mm | 86% | 1.4 m/s | 4.1 |
| 2008 | 19.1°C | 15.9°C | 12.8°C | 22.7°C | 9.9°C | 118 mm | 89% | 1.5 m/s | 3.7 |
| 2007 | 19.4°C | 15.8°C | 12.2°C | 23.5°C | 9.1°C | 125 mm | 86% | 1.3 m/s | 4.7 |
| 2006 | 19.0°C | 15.7°C | 12.4°C | 23.0°C | 7.1°C | 111 mm | 86% | 1.5 m/s | 4.4 |
| 2005 | 20.2°C | 16.5°C | 12.8°C | 23.5°C | 10.2°C | 110 mm | 86% | 1.2 m/s | 4.4 |
| 2004 | 21.5°C | 17.6°C | 13.7°C | 25.6°C | 8.6°C | 77 mm | 86% | 1.3 m/s | 4.2 |
| 2003 | 20.0°C | 16.1°C | 12.1°C | 23.3°C | 7.4°C | 81 mm | 84% | 1.3 m/s | 4.6 |
| 2002 | 20.4°C | 16.4°C | 12.4°C | 25.4°C | 5.8°C | 42 mm | 85% | 1.3 m/s | 4.5 |
| 2001 | 20.6°C | 16.8°C | 13.0°C | 23.6°C | 7.9°C | 69 mm | 86% | 1.2 m/s | 4.3 |
| 2000 | 20.6°C | 16.8°C | 12.9°C | 25.0°C | 9.1°C | 79 mm | 87% | 1.2 m/s | 4.2 |
| 1999 | 20.8°C | 17.0°C | 13.1°C | 24.7°C | 8.1°C | 58 mm | 85% | 1.4 m/s | 4.4 |
| 1998 | 20.5°C | 16.8°C | 13.2°C | 24.5°C | 9.2°C | 108 mm | 85% | 1.3 m/s | 4.7 |
| 1997 | 19.2°C | 15.5°C | 11.9°C | 24.5°C | 7.3°C | 82 mm | 87% | 1.2 m/s | 4 |
| 1996 | 20.6°C | 16.8°C | 12.9°C | 26.6°C | 8.5°C | 78 mm | 85% | 1.1 m/s | 4.7 |
| 1995 | 18.6°C | 14.5°C | 10.4°C | 24.8°C | 6.9°C | 89 mm | 84% | 1.4 m/s | 4.6 |
| 1994 | 21.4°C | 17.6°C | 13.8°C | 26.0°C | 10.1°C | 77 mm | 85% | 1.4 m/s | 4.8 |
| 1993 | 18.6°C | 14.8°C | 11.0°C | 24.8°C | 7.2°C | 78 mm | 86% | 1.3 m/s | 4.2 |
| 1992 | 18.2°C | 14.5°C | 10.9°C | 22.5°C | 6.7°C | 71 mm | 87% | 1.4 m/s | 4.3 |
| 1991 ❄️ | 18.2°C | 14.3°C | 10.3°C | 24.6°C | 6.2°C | 80 mm | 85% | 1.3 m/s | 3.9 |
| 1990 | 20.9°C | 16.9°C | 13.0°C | 25.1°C | 7.9°C | 57 mm | 84% | 1.4 m/s | 4.5 |
| 1989 | 20.7°C | 16.7°C | 12.8°C | 25.1°C | 7.6°C | 54 mm | 83% | 1.4 m/s | 4.4 |
| 1988 | 20.2°C | 16.0°C | 11.8°C | 24.3°C | 7.8°C | 59 mm | 84% | 1.3 m/s | 4.5 |
| 1987 | 18.9°C | 15.0°C | 11.1°C | 25.9°C | 8.5°C | 53 mm | 83% | 1.3 m/s | 4.3 |
| 1986 | 19.8°C | 15.7°C | 11.7°C | 23.8°C | 8.0°C | 48 mm | 85% | 1.2 m/s | 4.8 |
| 1985 | 18.1°C | 14.4°C | 10.7°C | 24.4°C | 7.6°C | 97 mm | 86% | 1.2 m/s | 4.3 |
| 1984 | 21.1°C | 16.8°C | 12.6°C | 25.0°C | 9.2°C | 136 mm | 86% | 1.2 m/s | 5 |
| 1983 | 18.4°C | 14.6°C | 10.9°C | 23.0°C | 5.8°C | 117 mm | 86% | 1.4 m/s | — |
| 1982 | 19.0°C | 15.1°C | 11.2°C | 22.7°C | 7.1°C | 90 mm | 83% | 1.2 m/s | — |
| 1981 | 19.6°C | 15.7°C | 11.7°C | 24.2°C | 6.2°C | 107 mm | 87% | 1.5 m/s | — |
Actual recorded August data for each year, 1981–2025 — sourced from NASA POWER.
The average high in August is around 20°C with lows near 12.5°C (mean 16.3°C), based on 45 years of NASA POWER data.
August averages 88 mm of rainfall in Conception Bay South, one of the drier months. The wettest on record was 151 mm in 2023.
The hottest August reached 27.5°C in 2021. The coldest dipped to 5.8°C in 1983.
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 19.2°C to 20.9°C and overnight lows from 11.4°C to 13.4°C over the same span.
August is one of the warmer months of the year in Conception Bay South and one of the drier months, so plan for around 20°C daytime highs and 12.5°C at night.
Not quite — August is the 12th coolest month in Conception Bay South, averaging 16.3°C.
For August in Conception Bay South, pack light layers you can adjust through the day, with typical highs of 20°C and lows of 12.5°C. Bring an umbrella or light rain jacket too.
Relative humidity in August averages 86% — quite humid.
Average wind speed in August is 1.3 m/s. The windiest August on record averaged 1.6 m/s (2013).
The wettest August on record was 2023 with 151 mm. On average, August sees 88 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 Conception Bay South 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.
