August is one of the warmer months of the year in Les Îles-de-la-Madeleine, with average highs near 18.7°C and lows around 17.2°C (mean 18°C). It is about average for rainfall, averaging 99 mm of rainfall and 85% relative humidity across the period.
August is one of the warmer months of the year in Les Îles-de-la-Madeleine. Across 45 years of records, the warmest August in Les Îles-de-la-Madeleine was 2018 — when the month averaged 20.2°C — while the coldest was 1982 at 15.6°C. Typical August days reach 18.7°C with nights near 17.2°C. The long-term trend is warming, about 0.6°C per decade.
August is about average for rainfall in Les Îles-de-la-Madeleine, averaging 99 mm of rainfall. The wettest August on record was 2008 with 174 mm, while the driest was 2025 at 30 mm.
Relative humidity in Les Îles-de-la-Madeleine during August averages 85%. The most humid August was 2015 at 90%, and the least humid was 2025 at 81%.
August receives about 4.9 kWh/m²/day of solar energy in Les Îles-de-la-Madeleine. The sunniest August was 2025 at 5.8 kWh/m²/day, and the cloudiest was 2008 at 4.2.
Average wind speed in Les Îles-de-la-Madeleine during August is 5.2 m/s. The windiest August was 1989 at 6.2 m/s, while the calmest was 2010 at 4.3 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 17.0°C | 17.3°C | 17.8°C | 19.0°C | 19.0°C | +2°C |
| Avg High | 17.8°C | 18.1°C | 18.6°C | 19.7°C | 19.8°C | +2°C |
| Avg Low | 16.2°C | 16.4°C | 17.1°C | 18.2°C | 18.2°C | +2°C |
| Avg Rain | 99 mm | 119 mm | 111 mm | 88 mm | 65 mm | -34 mm |
August temperatures in Les Îles-de-la-Madeleine have risen by about 2.1°C between 1981–1985 and 2021–2025.
August has ranged from a record low of 11°C (1989) to a record high of 23°C (2021).
Rainfall in August is about average for rainfall, averaging 99 mm, with a wettest year of 174 mm.
One of the best times to visit Les Îles-de-la-Madeleine
August is one of the best times to visit Les Îles-de-la-Madeleine. Expect days averaging 18.7°C and nights around 17.2°C (mean 18°C) — warmer than Les Îles-de-la-Madeleine's yearly average — with higher rainfall (99 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 | 19.0°C | 18.2°C | 17.4°C | 22.8°C | 15.5°C | 30 mm | 81% | 4.6 m/s | 5.8 |
| 2024 | 20.3°C | 19.6°C | 18.8°C | 22.5°C | 15.4°C | 59 mm | 84% | 5 m/s | 5 |
| 2023 | 18.6°C | 17.9°C | 17.2°C | 20.9°C | 13.7°C | 113 mm | 85% | 5.4 m/s | 4.5 |
| 2022 | 20.7°C | 20.0°C | 19.2°C | 23.0°C | 16.8°C | 75 mm | 86% | 5.3 m/s | 4.7 |
| 2021 | 20.3°C | 19.5°C | 18.7°C | 23.0°C | 15.4°C | 52 mm | 86% | 5.1 m/s | 5 |
| 2020 | 19.7°C | 18.9°C | 18.0°C | 22.8°C | 13.4°C | 62 mm | 82% | 5.8 m/s | 5.1 |
| 2019 | 20.0°C | 19.3°C | 18.6°C | 21.5°C | 15.7°C | 73 mm | 83% | 4.8 m/s | 5.3 |
| 2018 🔥 | 21.1°C | 20.2°C | 19.3°C | 22.8°C | 15.8°C | 87 mm | 85% | 5 m/s | 5 |
| 2017 | 19.2°C | 18.5°C | 17.7°C | 20.9°C | 15.2°C | 76 mm | 84% | 5 m/s | 5 |
| 2016 | 19.3°C | 18.5°C | 17.8°C | 21.3°C | 14.0°C | 81 mm | 83% | 5.6 m/s | 4.8 |
| 2015 | 20.1°C | 19.5°C | 18.9°C | 22.0°C | 16.3°C | 79 mm | 90% | 5 m/s | 5.1 |
| 2014 | 19.6°C | 18.9°C | 18.3°C | 22.6°C | 14.2°C | 107 mm | 84% | 5.1 m/s | 4.7 |
| 2013 | 18.7°C | 18.0°C | 17.2°C | 20.6°C | 14.8°C | 87 mm | 87% | 5.3 m/s | 5.3 |
| 2012 | 20.9°C | 20.1°C | 19.4°C | 22.5°C | 16.5°C | 98 mm | 86% | 4.9 m/s | 4.4 |
| 2011 | 18.6°C | 17.9°C | 17.1°C | 20.6°C | 15.4°C | 105 mm | 88% | 5.5 m/s | 4.7 |
| 2010 | 19.5°C | 18.8°C | 18.1°C | 21.2°C | 16.2°C | 84 mm | 82% | 4.3 m/s | 5.2 |
| 2009 | 19.4°C | 18.5°C | 17.7°C | 21.8°C | 13.0°C | 117 mm | 85% | 5.2 m/s | 4.8 |
| 2008 🌧️ | 18.0°C | 17.4°C | 16.9°C | 20.3°C | 14.8°C | 174 mm | 89% | 6.1 m/s | 4.2 |
| 2007 | 17.8°C | 17.1°C | 16.3°C | 21.0°C | 13.2°C | 128 mm | 85% | 5.4 m/s | 4.8 |
| 2006 | 17.9°C | 17.2°C | 16.5°C | 19.5°C | 14.4°C | 157 mm | 81% | 5.6 m/s | 5.2 |
| 2005 | 18.6°C | 17.9°C | 17.2°C | 21.1°C | 15.0°C | 87 mm | 86% | 5.3 m/s | 4.7 |
| 2004 | 19.1°C | 18.3°C | 17.5°C | 21.0°C | 15.0°C | 102 mm | 86% | 5.1 m/s | 4.6 |
| 2003 | 18.0°C | 17.2°C | 16.5°C | 20.7°C | 13.7°C | 98 mm | 86% | 5.6 m/s | 4.6 |
| 2002 | 18.5°C | 17.6°C | 16.8°C | 21.9°C | 13.6°C | 72 mm | 85% | 5 m/s | 5.2 |
| 2001 | 19.6°C | 18.8°C | 17.9°C | 22.1°C | 15.9°C | 72 mm | 83% | 5.2 m/s | 5 |
| 2000 | 18.8°C | 18.2°C | 17.6°C | 20.9°C | 15.7°C | 100 mm | 85% | 4.9 m/s | 4.6 |
| 1999 | 18.4°C | 17.6°C | 16.8°C | 21.8°C | 14.4°C | 158 mm | 85% | 5.3 m/s | 4.7 |
| 1998 | 17.9°C | 17.1°C | 16.2°C | 21.8°C | 13.4°C | 122 mm | 87% | 5.2 m/s | 4.9 |
| 1997 | 17.1°C | 16.4°C | 15.7°C | 19.8°C | 13.6°C | 115 mm | 85% | 4.8 m/s | 4.6 |
| 1996 | 18.9°C | 18.2°C | 17.4°C | 20.9°C | 15.1°C | 80 mm | 83% | 4.4 m/s | 5.1 |
| 1995 | 18.2°C | 17.2°C | 16.2°C | 22.2°C | 12.1°C | 116 mm | 82% | 6 m/s | 4.9 |
| 1994 | 18.3°C | 17.4°C | 16.5°C | 22.1°C | 13.4°C | 125 mm | 81% | 5.5 m/s | 5.1 |
| 1993 | 18.1°C | 17.4°C | 16.7°C | 19.8°C | 14.3°C | 91 mm | 85% | 4.9 m/s | 5 |
| 1992 | 17.8°C | 16.9°C | 16.0°C | 19.4°C | 13.2°C | 109 mm | 88% | 5.5 m/s | 4.7 |
| 1991 | 17.7°C | 16.7°C | 15.7°C | 20.3°C | 11.6°C | 132 mm | 87% | 5.7 m/s | 4.3 |
| 1990 | 18.6°C | 17.8°C | 16.9°C | 20.7°C | 14.2°C | 147 mm | 88% | 5.2 m/s | 4.9 |
| 1989 | 18.1°C | 17.3°C | 16.5°C | 20.8°C | 11.0°C | 129 mm | 87% | 6.2 m/s | 4.4 |
| 1988 | 18.4°C | 17.6°C | 16.9°C | 21.5°C | 14.0°C | 71 mm | 83% | 5.1 m/s | 4.4 |
| 1987 | 18.1°C | 17.3°C | 16.5°C | 21.1°C | 14.2°C | 65 mm | 82% | 4.4 m/s | 4.9 |
| 1986 | 17.3°C | 16.5°C | 15.7°C | 18.9°C | 12.3°C | 83 mm | 86% | 5.1 m/s | 4.7 |
| 1985 | 18.3°C | 17.6°C | 16.9°C | 20.5°C | 13.8°C | 86 mm | 85% | 4.5 m/s | 5.1 |
| 1984 | 18.8°C | 17.9°C | 17.1°C | 20.7°C | 14.4°C | 92 mm | 89% | 4.5 m/s | 5 |
| 1983 | 17.0°C | 16.2°C | 15.3°C | 20.0°C | 12.3°C | 107 mm | 88% | 5.2 m/s | — |
| 1982 ❄️ | 16.4°C | 15.6°C | 14.8°C | 18.9°C | 12.8°C | 151 mm | 84% | 5.2 m/s | — |
| 1981 | 18.2°C | 17.3°C | 16.5°C | 19.7°C | 13.1°C | 106 mm | 87% | 5.6 m/s | — |
Actual recorded August data for each year, 1981–2025 — sourced from NASA POWER.
The average high in August is around 18.7°C with lows near 17.2°C (mean 18°C), based on 45 years of NASA POWER data.
August averages 99 mm of rainfall in Les Îles-de-la-Madeleine, about average for rainfall. The wettest on record was 174 mm in 2008.
The hottest August reached 23°C in 2021. The coldest dipped to 11°C in 1989.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average August temperatures have risen by about 2.1°C. Daytime highs moved from 17.7°C to 19.8°C and overnight lows from 16.1°C to 18.3°C over the same span.
August is one of the warmer months of the year in Les Îles-de-la-Madeleine and about average for rainfall, so plan for around 18.7°C daytime highs and 17.2°C at night.
Not quite — August is the 12th coolest month in Les Îles-de-la-Madeleine, averaging 18°C.
For August in Les Îles-de-la-Madeleine, pack light layers you can adjust through the day, with typical highs of 18.7°C and lows of 17.2°C. Bring an umbrella or light rain jacket too.
Relative humidity in August averages 85% — quite humid.
Average wind speed in August is 5.2 m/s. The windiest August on record averaged 6.2 m/s (1989).
The wettest August on record was 2008 with 174 mm. On average, August sees 99 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 Les Îles-de-la-Madeleine 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.
