August is one of the warmer months of the year in Sept-Îles, with average highs near 16.7°C and lows around 13.4°C (mean 15.1°C). It is about average for rainfall, averaging 79 mm of rainfall and 86% relative humidity across the period.
August is one of the warmer months of the year in Sept-Îles. Across 45 years of records, the warmest August in Sept-Îles was 2014 — when the month averaged 17.5°C — while the coldest was 1982 at 12.8°C. Typical August days reach 16.7°C with nights near 13.4°C. The long-term trend is warming, about 0.5°C per decade.
August is about average for rainfall in Sept-Îles, averaging 79 mm of rainfall. The wettest August on record was 1993 with 187 mm, while the driest was 2013 at 31 mm.
Relative humidity in Sept-Îles during August averages 86%. The most humid August was 2011 at 90%, and the least humid was 2020 at 81%.
August receives about 4.4 kWh/m²/day of solar energy in Sept-Îles. The sunniest Augusts were 1985, 1991 and 1996 at 4.9 kWh/m²/day, and the cloudiest was 2023 at 3.5.
Average wind speed in Sept-Îles during August is 2.6 m/s. The windiest August was 2008 at 3.3 m/s, while the calmest was 2005 at 2.1 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 14.3°C | 14.6°C | 14.9°C | 15.8°C | 16.2°C | +1.9°C |
| Avg High | 16.2°C | 16.4°C | 16.6°C | 17.3°C | 17.8°C | +1.6°C |
| Avg Low | 12.6°C | 12.9°C | 13.3°C | 14.3°C | 14.5°C | +1.9°C |
| Avg Rain | 78 mm | 84 mm | 84 mm | 69 mm | 80 mm | +2 mm |
August temperatures in Sept-Îles have risen by about 1.5°C between 1981–1985 and 2021–2025.
August has ranged from a record low of 6.3°C (1982) to a record high of 24.2°C (2022).
Rainfall in August is about average for rainfall, averaging 79 mm, with a wettest year of 187 mm.
One of the best times to visit Sept-Îles
August is one of the best times to visit Sept-Îles. Expect days averaging 16.7°C and nights around 13.4°C (mean 15.1°C) — warmer than Sept-Îles's yearly average — with moderate rainfall (79 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 | 16.9°C | 15.2°C | 13.4°C | 21.1°C | 10.4°C | 64 mm | 84% | 2.2 m/s | 4.6 |
| 2024 | 17.8°C | 16.1°C | 14.4°C | 22.4°C | 11.2°C | 67 mm | 84% | 2.2 m/s | 4.4 |
| 2023 | 17.1°C | 15.6°C | 14.2°C | 18.7°C | 11.3°C | 144 mm | 86% | 3 m/s | 3.5 |
| 2022 | 18.6°C | 16.9°C | 15.3°C | 24.2°C | 12.8°C | 69 mm | 85% | 2.3 m/s | 4.7 |
| 2021 | 18.2°C | 16.7°C | 15.1°C | 23.5°C | 11.6°C | 74 mm | 86% | 2.2 m/s | 4.4 |
| 2020 | 18.0°C | 16.4°C | 14.8°C | 21.9°C | 9.8°C | 65 mm | 81% | 3.2 m/s | 4.4 |
| 2019 | 17.4°C | 15.9°C | 14.4°C | 19.6°C | 11.9°C | 51 mm | 86% | 2.5 m/s | 4.1 |
| 2018 | 18.0°C | 16.5°C | 15.1°C | 20.3°C | 11.0°C | 52 mm | 87% | 2.6 m/s | 4.3 |
| 2017 | 15.4°C | 13.8°C | 12.2°C | 18.7°C | 9.7°C | 99 mm | 88% | 2.5 m/s | 4 |
| 2016 | 16.9°C | 15.4°C | 13.9°C | 19.3°C | 10.9°C | 67 mm | 86% | 2.3 m/s | 4.3 |
| 2015 | 18.0°C | 16.7°C | 15.4°C | 20.3°C | 12.9°C | 96 mm | 89% | 2.4 m/s | 3.9 |
| 2014 🔥 | 19.2°C | 17.5°C | 15.8°C | 23.5°C | 12.0°C | 51 mm | 83% | 2.7 m/s | 4.6 |
| 2013 | 16.1°C | 14.5°C | 12.9°C | 18.8°C | 9.9°C | 31 mm | 86% | 2.6 m/s | 4.2 |
| 2012 | 17.8°C | 16.4°C | 14.9°C | 21.0°C | 11.8°C | 66 mm | 87% | 2.7 m/s | 4 |
| 2011 | 16.6°C | 15.4°C | 14.1°C | 18.5°C | 10.5°C | 131 mm | 90% | 3 m/s | 3.6 |
| 2010 | 17.1°C | 15.7°C | 14.2°C | 20.2°C | 11.6°C | 47 mm | 86% | 2.2 m/s | 4.2 |
| 2009 | 16.9°C | 15.2°C | 13.5°C | 23.0°C | 8.2°C | 82 mm | 85% | 3 m/s | 4.2 |
| 2008 | 17.3°C | 15.8°C | 14.3°C | 19.9°C | 11.3°C | 89 mm | 87% | 3.3 m/s | 4.2 |
| 2007 | 16.0°C | 14.3°C | 12.6°C | 19.1°C | 10.4°C | 99 mm | 85% | 2.6 m/s | 4.2 |
| 2006 | 16.0°C | 14.2°C | 12.4°C | 19.6°C | 8.9°C | 42 mm | 82% | 2.8 m/s | 4.5 |
| 2005 | 15.9°C | 14.1°C | 12.4°C | 19.6°C | 9.1°C | 117 mm | 87% | 2.1 m/s | 4.3 |
| 2004 | 16.3°C | 14.8°C | 13.3°C | 19.0°C | 10.6°C | 137 mm | 88% | 2.4 m/s | 3.8 |
| 2003 | 16.5°C | 14.8°C | 13.1°C | 20.4°C | 8.5°C | 71 mm | 86% | 3 m/s | 4.2 |
| 2002 | 16.8°C | 15.1°C | 13.3°C | 19.6°C | 8.0°C | 61 mm | 86% | 2.6 m/s | 4.6 |
| 2001 | 16.4°C | 15.0°C | 13.5°C | 20.3°C | 9.5°C | 77 mm | 87% | 2.3 m/s | 4.1 |
| 2000 | 17.4°C | 15.8°C | 14.3°C | 19.9°C | 11.3°C | 66 mm | 87% | 2.4 m/s | 4.3 |
| 1999 | 16.9°C | 15.2°C | 13.5°C | 19.6°C | 11.2°C | 83 mm | 84% | 2.5 m/s | 4.7 |
| 1998 | 16.6°C | 14.8°C | 12.9°C | 21.5°C | 10.6°C | 43 mm | 85% | 2.6 m/s | 4.7 |
| 1997 | 14.8°C | 13.4°C | 12.1°C | 16.9°C | 9.3°C | 90 mm | 87% | 2.4 m/s | 4.2 |
| 1996 | 16.9°C | 15.1°C | 13.3°C | 22.7°C | 9.9°C | 35 mm | 85% | 2.2 m/s | 4.9 |
| 1995 | 17.4°C | 15.3°C | 13.2°C | 23.6°C | 9.2°C | 32 mm | 83% | 2.5 m/s | 4.7 |
| 1994 | 14.9°C | 13.1°C | 11.4°C | 18.2°C | 8.4°C | 107 mm | 85% | 2.6 m/s | 4.6 |
| 1993 🌧️ | 16.8°C | 15.3°C | 13.8°C | 20.4°C | 10.1°C | 187 mm | 86% | 2.7 m/s | 4.5 |
| 1992 | 14.7°C | 13.1°C | 11.5°C | 18.6°C | 9.4°C | 100 mm | 88% | 2.7 m/s | 4.3 |
| 1991 | 16.9°C | 15.0°C | 13.1°C | 21.9°C | 9.3°C | 96 mm | 85% | 2.7 m/s | 4.9 |
| 1990 | 17.7°C | 15.8°C | 14.0°C | 20.7°C | 10.0°C | 72 mm | 85% | 2.5 m/s | 4.6 |
| 1989 | 15.9°C | 14.1°C | 12.3°C | 20.1°C | 7.6°C | 71 mm | 87% | 2.6 m/s | 4.4 |
| 1988 | 16.8°C | 14.9°C | 13.1°C | 21.1°C | 8.4°C | 92 mm | 84% | 2.7 m/s | 4.3 |
| 1987 | 15.1°C | 13.2°C | 11.3°C | 19.6°C | 7.7°C | 55 mm | 85% | 2.4 m/s | 4.2 |
| 1986 | 15.5°C | 13.8°C | 12.2°C | 18.0°C | 7.2°C | 109 mm | 86% | 2.9 m/s | 4.4 |
| 1985 | 16.6°C | 14.8°C | 13.0°C | 19.3°C | 9.3°C | 66 mm | 86% | 2.2 m/s | 4.9 |
| 1984 | 17.4°C | 15.6°C | 13.8°C | 20.1°C | 10.9°C | 61 mm | 85% | 2.3 m/s | 4.8 |
| 1983 | 16.5°C | 14.7°C | 12.9°C | 20.5°C | 9.3°C | 67 mm | 85% | 2.6 m/s | — |
| 1982 ❄️ | 14.6°C | 12.8°C | 11.0°C | 19.3°C | 6.3°C | 108 mm | 84% | 2.8 m/s | — |
| 1981 | 17.1°C | 15.2°C | 13.4°C | 20.4°C | 9.5°C | 75 mm | 84% | 2.7 m/s | — |
Actual recorded August data for each year, 1981–2025 — sourced from NASA POWER.
The average high in August is around 16.7°C with lows near 13.4°C (mean 15.1°C), based on 45 years of NASA POWER data.
August averages 79 mm of rainfall in Sept-Îles, about average for rainfall. The wettest on record was 187 mm in 1993.
The hottest August reached 24.2°C in 2022. The coldest dipped to 6.3°C in 1982.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average August temperatures have risen by about 1.5°C. Daytime highs moved from 16.4°C to 17.7°C and overnight lows from 12.8°C to 14.5°C over the same span.
August is one of the warmer months of the year in Sept-Îles and about average for rainfall, so plan for around 16.7°C daytime highs and 13.4°C at night.
Not quite — August is the 11th coolest month in Sept-Îles, averaging 15.1°C.
For August in Sept-Îles, pack light layers you can adjust through the day, with typical highs of 16.7°C and lows of 13.4°C. Bring an umbrella or light rain jacket too.
Relative humidity in August averages 86% — quite humid.
Average wind speed in August is 2.6 m/s. The windiest August on record averaged 3.3 m/s (2008).
The wettest August on record was 1993 with 187 mm. On average, August sees 79 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 Sept-Îles 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.
