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Monthly climate in Bay St. George South, Canada

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Bay St. George South features a humid continental climate (Dfb). Temperatures typically range between -5 °C (23 °F) and 18 °C (64 °F) through the year, but rarely can drop to -18 °C (0 °F) or can rise to as high as 27 °C (82 °F). The average annual precipitation amounts to about 1438 mm (56.6 inches) and receives 204 rainy days on the 1 mm (0.04 inches) threshold annually. Bay St. George South enjoys an average of 2469 hours of sunshine throughout the year, and daylight varies from 8 hours 23 minutes to 15 hours 59 minutes per day.

Monthly average temperatures in Bay St. George South, Canada

The warmest months in Bay St. George South are July, August and September, with daily mean temperatures ranging from 14 to 18 °C (57 - 64 °F) throughout the day. The coldest temperatures usually occur in January, February and March, when daily mean temperatures range from -5 to -3 °C (23 - 27 °F) throughout the day. On average each year, Bay St. George South experiences 1 days above 25 °C (77.0 °F) and 139 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Bay St. George South. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum11°C
(53°F)		8°C
(47°F)		9°C
(48°F)		13°C
(57°F)		18°C
(65°F)		25°C
(78°F)		25°C
(77°F)		27°C
(82°F)		24°C
(75°F)		22°C
(72°F)		17°C
(64°F)		13°C
(55°F)
Mean maximum7°C
(44°F)		6°C
(42°F)		7°C
(44°F)		12°C
(54°F)		17°C
(62°F)		20°C
(67°F)		25°C
(76°F)		26°C
(79°F)		22°C
(73°F)		18°C
(64°F)		15°C
(60°F)		11°C
(51°F)
Average high-1°C
(30°F)		-2°C
(28°F)		-0°C
(32°F)		5°C
(41°F)		9°C
(48°F)		15°C
(58°F)		19°C
(67°F)		21°C
(71°F)		17°C
(62°F)		11°C
(52°F)		6°C
(44°F)		1°C
(35°F)
Daily mean-4°C
(25°F)		-5°C
(23°F)		-3°C
(27°F)		2°C
(36°F)		6°C
(43°F)		11°C
(52°F)		16°C
(61°F)		18°C
(64°F)		14°C
(57°F)		8°C
(47°F)		4°C
(39°F)		-1°C
(31°F)
Average low-7°C
(20°F)		-8°C
(17°F)		-6°C
(21°F)		-1°C
(31°F)		3°C
(37°F)		8°C
(46°F)		13°C
(55°F)		14°C
(58°F)		10°C
(51°F)		6°C
(42°F)		1°C
(34°F)		-3°C
(27°F)
Mean minimum-13°C
(9°F)		-14°C
(6°F)		-13°C
(9°F)		-7°C
(19°F)		-1°C
(30°F)		3°C
(37°F)		7°C
(46°F)		10°C
(50°F)		5°C
(41°F)		1°C
(34°F)		-4°C
(25°F)		-8°C
(18°F)
Minimum-15°C
(5°F)		-18°C
(0°F)		-14°C
(7°F)		-10°C
(14°F)		-3°C
(28°F)		1°C
(34°F)		6°C
(43°F)		8°C
(47°F)		3°C
(37°F)		-1°C
(31°F)		-8°C
(18°F)		-10°C
(14°F)

Compare climate in Bay St. George South with other places

Compare temperature, precipitation, sunshine, UV index in Bay St. George South, Canada with other places around the world.

Monthly average precipitation in Bay St. George South, Canada

Bay St. George South usually has the most precipitation in February, November and December, with an average of 21 rainy days and 158 mm (6.2 inches) of precipitation per month. The driest months in Bay St. George South are May, July and August. On average, 90 mm (3.5 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Bay St. George South. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)110 (4.3)132 (5.2)123 (4.9)105 (4.1)98 (3.9)107 (4.2)71 (2.8)100 (4.0)119 (4.7)131 (5.1)174 (6.9)168 (6.6)
Average precipitation days (≥ 1 mm)172119161413121416182123

Monthly sunshine hours in Bay St. George South, Canada

The sunniest months in Bay St. George South are June, July and August, when the sun shines an average of 10 hours 16 minutes a day. Least sunny months in Bay St. George South: January, February and December receive an average of 2 hours 28 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Bay St. George South. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours599319923329829831632924221311272
Mean daily daylight hours8h 50m10h 13m11h 56m13h 42m15h 13m15h 59m15h 34m14h 12m12h 31m10h 45m9h 12m8h 23m

Solar UV radiation in Bay St. George South, Canada

Bay St. George South 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 Bay St. George South UV Index data.

Average daily maximum UV levels by month for Bay St. George South. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)234789886421