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Monthly climate in Saint-Mathieu-de-Rioux, Canada

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Saint-Mathieu-de-Rioux features a humid continental climate (Dfb). Temperatures typically range between -9 °C (15 °F) and 15 °C (60 °F) through the year, but rarely can drop to -23 °C (-9 °F) or can rise to as high as 23 °C (75 °F). The average annual precipitation amounts to about 1056 mm (41.6 inches) and receives 134 rainy days on the 1 mm (0.04 inches) threshold annually. Saint-Mathieu-de-Rioux enjoys an average of 2911 hours of sunshine throughout the year, and daylight varies from 8 hours 24 minutes to 15 hours 59 minutes per day.

Monthly average temperatures in Saint-Mathieu-de-Rioux, Canada

The warmest months in Saint-Mathieu-de-Rioux are June, July and August, with daily mean temperatures ranging from 12 to 15 °C (55 - 60 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -9 to -6 °C (15 - 21 °F) throughout the day. On average each year, Saint-Mathieu-de-Rioux experiences 0 days above 25 °C (77.0 °F) and 154 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-Mathieu-de-Rioux. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum8°C
(46°F)		7°C
(44°F)		10°C
(50°F)		11°C
(51°F)		21°C
(70°F)		23°C
(75°F)		23°C
(73°F)		23°C
(73°F)		20°C
(68°F)		18°C
(64°F)		14°C
(58°F)		12°C
(53°F)
Mean maximum2°C
(37°F)		4°C
(40°F)		5°C
(42°F)		9°C
(49°F)		18°C
(64°F)		20°C
(68°F)		22°C
(71°F)		22°C
(71°F)		19°C
(66°F)		15°C
(59°F)		9°C
(49°F)		7°C
(45°F)
Average high-7°C
(20°F)		-6°C
(22°F)		-2°C
(29°F)		4°C
(39°F)		10°C
(50°F)		15°C
(59°F)		18°C
(65°F)		18°C
(64°F)		14°C
(57°F)		9°C
(48°F)		2°C
(35°F)		-3°C
(26°F)
Daily mean-9°C
(15°F)		-9°C
(16°F)		-4°C
(24°F)		1°C
(34°F)		7°C
(44°F)		12°C
(55°F)		15°C
(60°F)		15°C
(59°F)		11°C
(53°F)		7°C
(44°F)		-0°C
(31°F)		-6°C
(21°F)
Average low-12°C
(10°F)		-12°C
(11°F)		-7°C
(19°F)		-1°C
(30°F)		4°C
(39°F)		10°C
(50°F)		13°C
(55°F)		13°C
(55°F)		9°C
(49°F)		5°C
(41°F)		-2°C
(28°F)		-9°C
(17°F)
Mean minimum-21°C
(-5°F)		-20°C
(-5°F)		-17°C
(1°F)		-7°C
(20°F)		-1°C
(30°F)		5°C
(41°F)		9°C
(49°F)		9°C
(48°F)		5°C
(42°F)		0°C
(32°F)		-9°C
(15°F)		-16°C
(3°F)
Minimum-23°C
(-9°F)		-22°C
(-7°F)		-22°C
(-8°F)		-10°C
(14°F)		-3°C
(27°F)		3°C
(37°F)		7°C
(46°F)		8°C
(46°F)		4°C
(39°F)		-3°C
(26°F)		-12°C
(11°F)		-19°C
(-3°F)

Compare climate in Saint-Mathieu-de-Rioux with other places

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

Monthly average precipitation in Saint-Mathieu-de-Rioux, Canada

Saint-Mathieu-de-Rioux usually has the most precipitation in April, October and November, with an average of 12 rainy days and 122 mm (4.8 inches) of precipitation per month. The driest months in Saint-Mathieu-de-Rioux are February, July and August. On average, 62 mm (2.5 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Saint-Mathieu-de-Rioux. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)82 (3.2)66 (2.6)80 (3.1)112 (4.4)90 (3.6)72 (2.8)59 (2.3)61 (2.4)90 (3.5)142 (5.6)111 (4.4)90 (3.5)
Average precipitation days (≥ 1 mm)1110111311109912131213

Monthly sunshine hours in Saint-Mathieu-de-Rioux, Canada

The sunniest months in Saint-Mathieu-de-Rioux are June, July and August, when the sun shines an average of 11 hours 11 minutes a day. Least sunny months in Saint-Mathieu-de-Rioux: January, November and December receive an average of 4 hours 48 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Saint-Mathieu-de-Rioux. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours122197236246310331355342256192160159
Mean daily daylight hours8h 50m10h 13m11h 56m13h 42m15h 13m15h 59m15h 33m14h 12m12h 30m10h 45m9h 12m8h 24m

Solar UV radiation in Saint-Mathieu-de-Rioux, Canada

Saint-Mathieu-de-Rioux 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-Mathieu-de-Rioux UV Index data.

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