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Monthly climate in Saint-Nazaire, Canada

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Saint-Nazaire features a humid continental climate (Dfb). Temperatures typically range between -13 °C (9 °F) and 20 °C (68 °F) through the year, but rarely can drop to -35 °C (-31 °F) or can rise to as high as 36 °C (97 °F). The average annual precipitation amounts to about 1132 mm (44.6 inches) and receives 158 rainy days on the 1 mm (0.04 inches) threshold annually. Saint-Nazaire enjoys an average of 2723 hours of sunshine throughout the year, and daylight varies from 8 hours 20 minutes to 16 hours 3 minutes per day.

Monthly average temperatures in Saint-Nazaire, Canada

The warmest months in Saint-Nazaire are June, July and August, with daily mean temperatures ranging from 16 to 20 °C (61 - 68 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -13 to -10 °C (9 - 15 °F) throughout the day. On average each year, Saint-Nazaire experiences 30 days above 25 °C (77.0 °F) and 162 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Saint-Nazaire. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum9°C
(48°F)		6°C
(44°F)		20°C
(68°F)		22°C
(72°F)		33°C
(92°F)		36°C
(97°F)		35°C
(95°F)		32°C
(89°F)		29°C
(85°F)		21°C
(69°F)		20°C
(69°F)		10°C
(50°F)
Mean maximum3°C
(37°F)		4°C
(40°F)		10°C
(50°F)		17°C
(64°F)		26°C
(79°F)		30°C
(86°F)		31°C
(89°F)		29°C
(85°F)		26°C
(79°F)		18°C
(65°F)		11°C
(53°F)		6°C
(44°F)
Average high-9°C
(16°F)		-7°C
(20°F)		-1°C
(31°F)		7°C
(45°F)		16°C
(61°F)		22°C
(71°F)		25°C
(77°F)		23°C
(74°F)		18°C
(64°F)		11°C
(51°F)		2°C
(35°F)		-6°C
(22°F)
Daily mean-13°C
(9°F)		-12°C
(11°F)		-6°C
(22°F)		2°C
(36°F)		10°C
(51°F)		16°C
(61°F)		20°C
(68°F)		18°C
(65°F)		13°C
(56°F)		7°C
(44°F)		-1°C
(30°F)		-10°C
(15°F)
Average low-17°C
(1°F)		-17°C
(2°F)		-10°C
(13°F)		-2°C
(28°F)		4°C
(39°F)		10°C
(51°F)		14°C
(57°F)		14°C
(57°F)		9°C
(49°F)		3°C
(38°F)		-4°C
(25°F)		-14°C
(7°F)
Mean minimum-31°C
(-23°F)		-29°C
(-20°F)		-24°C
(-11°F)		-12°C
(10°F)		-3°C
(26°F)		3°C
(37°F)		7°C
(44°F)		6°C
(43°F)		2°C
(35°F)		-4°C
(25°F)		-13°C
(9°F)		-28°C
(-18°F)
Minimum-35°C
(-31°F)		-32°C
(-26°F)		-28°C
(-18°F)		-16°C
(4°F)		-5°C
(23°F)		-2°C
(29°F)		4°C
(40°F)		5°C
(41°F)		-2°C
(29°F)		-8°C
(17°F)		-19°C
(-1°F)		-31°C
(-23°F)

Compare climate in Saint-Nazaire with other places

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

Monthly average precipitation in Saint-Nazaire, Canada

Saint-Nazaire usually has the most precipitation in July, September and October, with an average of 14 rainy days and 123 mm (4.8 inches) of precipitation per month. The driest months in Saint-Nazaire are January, February and December. On average, 67 mm (2.6 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Saint-Nazaire. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)66 (2.6)59 (2.3)81 (3.2)86 (3.4)95 (3.7)83 (3.3)122 (4.8)116 (4.6)125 (4.9)123 (4.8)99 (3.9)77 (3.0)
Average precipitation days (≥ 1 mm)121112131312141413151514

Monthly sunshine hours in Saint-Nazaire, Canada

The sunniest months in Saint-Nazaire are June, July and August, when the sun shines an average of 10 hours 47 minutes a day. Least sunny months in Saint-Nazaire: January, November and December receive an average of 3 hours 59 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Saint-Nazaire. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours107183222235304320356315243173122138
Mean daily daylight hours8h 47m10h 11m11h 56m13h 43m15h 15m16h 3m15h 37m14h 14m12h 31m10h 44m9h 10m8h 20m

Solar UV radiation in Saint-Nazaire, Canada

Saint-Nazaire experiences the highest level of ultraviolet (UV) radiation in May, June and August, when the maximum UV index can reach values of 8 - 9, which corresponds to the 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 Saint-Nazaire UV Index data.

Average daily maximum UV levels by month for Saint-Nazaire. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)235789886421