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Monthly climate in Port Stanley, Canada

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Port Stanley features a humid continental climate (Dfb). Temperatures typically range between -3 °C (27 °F) and 22 °C (72 °F) through the year, but rarely can drop to -22 °C (-7 °F) or can rise to as high as 31 °C (87 °F). The average annual precipitation amounts to about 1100 mm (43.3 inches) and receives 145 rainy days on the 1 mm (0.04 inches) threshold annually. Port Stanley enjoys an average of 2885 hours of sunshine throughout the year, and daylight varies from 9 hours 5 minutes to 15 hours 15 minutes per day.

Monthly average temperatures in Port Stanley, Canada

The warmest months in Port Stanley are June, July and August, with daily mean temperatures ranging from 19 to 22 °C (66 - 72 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -3 to 1 °C (27 - 34 °F) throughout the day. On average each year, Port Stanley experiences 38 days above 25 °C (77.0 °F) and 99 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Port Stanley. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum11°C
(51°F)		13°C
(56°F)		15°C
(59°F)		20°C
(68°F)		26°C
(78°F)		28°C
(84°F)		31°C
(87°F)		29°C
(84°F)		29°C
(85°F)		26°C
(78°F)		19°C
(66°F)		13°C
(56°F)
Mean maximum8°C
(47°F)		9°C
(48°F)		12°C
(55°F)		17°C
(63°F)		24°C
(76°F)		27°C
(81°F)		29°C
(85°F)		28°C
(83°F)		27°C
(81°F)		23°C
(75°F)		15°C
(60°F)		11°C
(52°F)
Average high-0°C
(32°F)		0°C
(33°F)		4°C
(40°F)		9°C
(49°F)		16°C
(61°F)		22°C
(72°F)		25°C
(78°F)		25°C
(77°F)		22°C
(71°F)		15°C
(60°F)		7°C
(45°F)		3°C
(37°F)
Daily mean-3°C
(27°F)		-3°C
(27°F)		1°C
(34°F)		6°C
(43°F)		13°C
(55°F)		19°C
(66°F)		22°C
(72°F)		22°C
(71°F)		18°C
(65°F)		12°C
(55°F)		5°C
(41°F)		1°C
(34°F)
Average low-5°C
(23°F)		-6°C
(22°F)		-2°C
(29°F)		3°C
(38°F)		9°C
(49°F)		15°C
(60°F)		19°C
(66°F)		18°C
(65°F)		15°C
(60°F)		10°C
(49°F)		2°C
(36°F)		-1°C
(30°F)
Mean minimum-16°C
(3°F)		-16°C
(4°F)		-10°C
(15°F)		-3°C
(27°F)		2°C
(35°F)		10°C
(51°F)		15°C
(58°F)		13°C
(55°F)		9°C
(48°F)		2°C
(37°F)		-5°C
(23°F)		-8°C
(18°F)
Minimum-21°C
(-6°F)		-22°C
(-7°F)		-14°C
(7°F)		-6°C
(21°F)		-1°C
(31°F)		7°C
(44°F)		14°C
(57°F)		11°C
(52°F)		5°C
(42°F)		1°C
(35°F)		-8°C
(18°F)		-16°C
(4°F)

Compare climate in Port Stanley with other places

Compare temperature, precipitation, sunshine, UV index in Port Stanley, Canada with other places around the world.

Monthly average precipitation in Port Stanley, Canada

Port Stanley usually has the most precipitation in April, May and October, with an average of 13 rainy days and 110 mm (4.3 inches) of precipitation per month. The driest months in Port Stanley are January, February and December. On average, 78 mm (3.1 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Port Stanley. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)76 (3.0)79 (3.1)81 (3.2)106 (4.2)99 (3.9)93 (3.7)91 (3.6)96 (3.8)82 (3.2)123 (4.9)94 (3.7)77 (3.0)
Average precipitation days (≥ 1 mm)111211131312121110151213

Monthly sunshine hours in Port Stanley, Canada

The sunniest months in Port Stanley are June, July and August, when the sun shines an average of 11 hours 21 minutes a day. Least sunny months in Port Stanley: January, February and December receive an average of 4 hours 7 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Port Stanley. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours101152239254298344357343297221153121
Mean daily daylight hours9h 26m10h 33m11h 58m13h 24m14h 38m15h 15m14h 55m13h 49m12h 25m10h 59m9h 43m9h 5m

Solar UV radiation in Port Stanley, Canada

Port Stanley experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 9 - 10, which corresponds to the Very High category of sun exposure. January, February and December are in the Low / Moderate exposure category. In these months, the maximum values of the UV index do not exceed 4. For more detailed information, check out our hourly Port Stanley UV Index data.

Average daily maximum UV levels by month for Port Stanley. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)34589101098642