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Monthly climate in Sept-Iles, Canada

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Sept-Iles features a subarctic climate (Dfc). Temperatures typically range between -13 °C (8 °F) and 17 °C (63 °F) through the year, but rarely can drop to -32 °C (-25 °F) or can rise to as high as 33 °C (92 °F). The average annual precipitation amounts to about 1158 mm (45.6 inches) and receives 148 rainy days on the 1 mm (0.04 inches) threshold annually. Sept-Iles enjoys an average of 2827 hours of sunshine throughout the year, and daylight varies from 8 hours 6 minutes to 16 hours 18 minutes per day.

Monthly average temperatures in Sept-Iles, Canada

The warmest months in Sept-Iles are June, July and August, with daily mean temperatures ranging from 13 to 17 °C (56 - 63 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -13 to -9 °C (8 - 16 °F) throughout the day. On average each year, Sept-Iles experiences 8 days above 25 °C (77.0 °F) and 177 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Sept-Iles. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum6°C
(44°F)		3°C
(38°F)		11°C
(53°F)		15°C
(60°F)		28°C
(82°F)		33°C
(92°F)		30°C
(86°F)		29°C
(85°F)		24°C
(76°F)		19°C
(66°F)		16°C
(61°F)		7°C
(45°F)
Mean maximum2°C
(35°F)		1°C
(35°F)		5°C
(42°F)		11°C
(52°F)		21°C
(69°F)		24°C
(76°F)		28°C
(83°F)		27°C
(80°F)		22°C
(71°F)		16°C
(61°F)		10°C
(50°F)		4°C
(40°F)
Average high-9°C
(16°F)		-8°C
(18°F)		-2°C
(28°F)		4°C
(40°F)		12°C
(53°F)		18°C
(65°F)		22°C
(72°F)		21°C
(70°F)		15°C
(60°F)		9°C
(48°F)		1°C
(34°F)		-5°C
(23°F)
Daily mean-13°C
(8°F)		-12°C
(10°F)		-7°C
(20°F)		1°C
(33°F)		7°C
(45°F)		13°C
(56°F)		17°C
(63°F)		16°C
(62°F)		11°C
(52°F)		5°C
(41°F)		-2°C
(28°F)		-9°C
(16°F)
Average low-18°C
(0°F)		-17°C
(2°F)		-11°C
(12°F)		-3°C
(26°F)		2°C
(36°F)		8°C
(47°F)		12°C
(54°F)		12°C
(54°F)		7°C
(45°F)		2°C
(35°F)		-5°C
(23°F)		-13°C
(9°F)
Mean minimum-28°C
(-18°F)		-27°C
(-16°F)		-22°C
(-7°F)		-12°C
(11°F)		-5°C
(24°F)		2°C
(36°F)		7°C
(45°F)		6°C
(44°F)		1°C
(34°F)		-5°C
(23°F)		-14°C
(6°F)		-24°C
(-11°F)
Minimum-32°C
(-25°F)		-30°C
(-21°F)		-25°C
(-12°F)		-16°C
(3°F)		-7°C
(20°F)		-0°C
(32°F)		6°C
(43°F)		5°C
(42°F)		-1°C
(30°F)		-7°C
(20°F)		-20°C
(-4°F)		-28°C
(-18°F)

Compare climate in Sept-Iles with other places

Compare temperature, precipitation, sunshine, UV index in Sept-Iles, Canada with other places around the world.

Monthly average precipitation in Sept-Iles, Canada

Sept-Iles usually has the most precipitation in September, October and November, with an average of 14 rainy days and 127 mm (5.0 inches) of precipitation per month. The driest months in Sept-Iles are January, February and July. On average, 69 mm (2.7 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Sept-Iles. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)70 (2.8)62 (2.4)78 (3.1)102 (4.0)78 (3.1)80 (3.1)74 (2.9)117 (4.6)140 (5.5)122 (4.8)118 (4.6)116 (4.6)
Average precipitation days (≥ 1 mm)91110121112141316141313

Monthly sunshine hours in Sept-Iles, Canada

The sunniest months in Sept-Iles are June, July and August, when the sun shines an average of 10 hours 52 minutes a day. Least sunny months in Sept-Iles: January, November and December receive an average of 4 hours 24 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Sept-Iles. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours112192238252307327349323239191142150
Mean daily daylight hours8h 35m10h 5m11h 56m13h 49m15h 28m16h 18m15h 51m14h 22m12h 32m10h 40m8h 59m8h 6m

Solar UV radiation in Sept-Iles, Canada

Sept-Iles experiences the highest level of ultraviolet (UV) radiation in April, May and June, when the maximum UV index can reach values of 7 - 9, which corresponds to the High / Very High category of sun exposure. January, November and December are in the Low exposure category. In these months, the maximum values of the UV index do not exceed 2. For more detailed information, check out our hourly Sept-Iles UV Index data.

Average daily maximum UV levels by month for Sept-Iles. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)134799776421