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Weather & Climate in Sept-Îles, QC
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Sept-Îles has a cool climate with an average annual temperature of 39°F (4°C). Winters average 14°F in January while summers reach 64°F in July. The area gets 240 sunny days per year, above the national average. Annual precipitation totals 41.9 inches. The area receives 68.1 inches of snow annually, making winter weather a significant factor for residents. The city sits at an elevation of 13 feet.
Temperature
14°F Jan (-10°C)
64°F Jul (18°C)
| Annual Average | 39.2°F |
| 27% below US avg | |
| January Average | 14°F (-10°C) |
| July Average | 64°F (18°C) |
| Sunny Days | 240 days/yr |
Geography
| Elevation | 13 ft (4 m) |
| Area | 672.9 sq mi (1,742.9 km²) |
| Population Density | 37/sq mi |
| Coordinates | 50.2001°N, 66.3821°W |
| Timezone | America/Toronto |
Precipitation & Snow
Air Quality
Earthquake History
16 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.4.
| Mar 16, 1999 | 55 km NNE of Sainte-Anne-des-Monts, Canada | M4.4 | 66 km | 18 km |
| Sep 21, 2013 | 53 km SSE of Maliotenam, Canada | M4.2 | 59 km | 18 km |
| Oct 22, 1998 | 30 km NNW of Cap-Chat, Canada | M4.1 | 102 km | 18 km |
| Jan 16, 2015 | 37 km NNW of Cap-Chat, Canada | M4.1 | 91 km | 18 km |
| Jan 20, 2002 | 47 km NNW of Cap-Chat, Canada | M4.1 | 89 km | 30 km |
| Jul 23, 2002 | 48 km S of Saint-Alexandre, Canada | M4.0 | 79 km | 18 km |
| Mar 21, 1991 | 41 km SSE of Saint-Alexandre, Canada | M4.0 | 58 km | 18 km |
| Mar 20, 1991 | 44 km SE of Saint-Alexandre, Canada | M3.7 | 55 km | 18 km |
| Mar 28, 1994 | 56 km ESE of Sainte-Anne-des-Monts, Canada | M3.6 | 142 km | 18 km |
| May 28, 2006 | 50 km NNE of Sainte-Anne-des-Monts, Canada | M3.6 | 72 km | 18 km |
| Jul 21, 2009 | 63 km SSE of Maliotenam, Canada | M3.5 | 72 km | 14 km |
| May 28, 2006 | 49 km NNE of Sainte-Anne-des-Monts, Canada | M3.3 | 72 km | 20 km |
| May 16, 2010 | 36 km S of Saint-Alexandre, Canada | M3.1 | 68 km | 18 km |
| May 9, 2006 | 24 km SSE of Sept-Îles, Canada | M3.0 | 24 km | 18 km |
| Jan 3, 2019 | 77 km ENE of Maliotenam, Canada | M2.9 | 90 km | 15 km |
| Jul 25, 2007 | 33 km N of Sainte-Anne-des-Monts, Canada | M2.7 | 87 km | 17 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 14°F (-10°C) | 3.2 in | |
| February | 8°F (-14°C) | 2.6 in | Coldest, Driest |
| March | 19°F (-7°C) | 3.3 in | |
| April | 32°F (0°C) | 3.5 in | |
| May | 44°F (6°C) | 3.7 in | |
| June | 54°F (12°C) | 4.0 in | |
| July | 64°F (18°C) | 4.1 in | Warmest |
| August | 59°F (15°C) | 3.8 in | |
| September | 50°F (10°C) | 4.0 in | |
| October | 39°F (4°C) | 4.5 in | Wettest |
| November | 27°F (-3°C) | 3.7 in | |
| December | 12°F (-11°C) | 4.0 in |
Sept-Îles has a seasonal temperature swing of 56°F / from 8°F in February to 64°F in July. Total annual precipitation is 44.3 inches, with October being the wettest month (4.5") and February the driest (2.6").