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Monthly climate in Salt Spring Island, Canada

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Salt Spring Island features a warm-summer Mediterranean climate (Csb). Temperatures typically range between 3 °C (38 °F) and 19 °C (66 °F) through the year, but rarely can drop to -9 °C (15 °F) or can rise to as high as 38 °C (100 °F). The average annual precipitation amounts to about 1198 mm (47.2 inches) and receives 140 rainy days on the 1 mm (0.04 inches) threshold annually. Salt Spring Island enjoys an average of 2730 hours of sunshine throughout the year, and daylight varies from 8 hours 19 minutes to 16 hours 4 minutes per day.

Monthly average temperatures in Salt Spring Island, Canada

The warmest months in Salt Spring Island are June, July and August, with daily mean temperatures ranging from 16 to 19 °C (61 - 66 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 3 to 4 °C (38 - 40 °F) throughout the day. On average each year, Salt Spring Island experiences 16 days above 25 °C (77.0 °F) and 20 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Salt Spring Island. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum11°C
(52°F)		11°C
(53°F)		18°C
(65°F)		22°C
(72°F)		25°C
(77°F)		38°C
(100°F)		32°C
(90°F)		31°C
(88°F)		29°C
(84°F)		20°C
(68°F)		15°C
(60°F)		13°C
(55°F)
Mean maximum10°C
(51°F)		10°C
(51°F)		14°C
(57°F)		17°C
(63°F)		23°C
(73°F)		27°C
(81°F)		29°C
(84°F)		30°C
(86°F)		26°C
(79°F)		17°C
(63°F)		14°C
(58°F)		11°C
(51°F)
Average high6°C
(44°F)		6°C
(43°F)		9°C
(49°F)		12°C
(54°F)		16°C
(62°F)		19°C
(67°F)		23°C
(73°F)		23°C
(74°F)		19°C
(66°F)		13°C
(55°F)		9°C
(49°F)		6°C
(43°F)
Daily mean4°C
(40°F)		3°C
(38°F)		6°C
(43°F)		9°C
(48°F)		13°C
(56°F)		16°C
(61°F)		18°C
(65°F)		19°C
(66°F)		15°C
(60°F)		10°C
(51°F)		7°C
(45°F)		4°C
(40°F)
Average low2°C
(37°F)		1°C
(35°F)		4°C
(39°F)		6°C
(43°F)		10°C
(50°F)		12°C
(54°F)		14°C
(58°F)		15°C
(59°F)		13°C
(55°F)		8°C
(46°F)		5°C
(41°F)		2°C
(37°F)
Mean minimum-4°C
(26°F)		-4°C
(24°F)		-0°C
(31°F)		3°C
(37°F)		6°C
(43°F)		9°C
(48°F)		12°C
(53°F)		12°C
(54°F)		9°C
(48°F)		3°C
(37°F)		0°C
(33°F)		-3°C
(26°F)
Minimum-9°C
(15°F)		-7°C
(19°F)		-2°C
(29°F)		2°C
(35°F)		3°C
(38°F)		8°C
(47°F)		11°C
(52°F)		10°C
(51°F)		8°C
(47°F)		1°C
(34°F)		-2°C
(28°F)		-9°C
(15°F)

Compare climate in Salt Spring Island with other places

Compare temperature, precipitation, sunshine, UV index in Salt Spring Island, Canada with other places around the world.

Monthly average precipitation in Salt Spring Island, Canada

Salt Spring Island usually has the most precipitation in January, November and December, with an average of 17 rainy days and 189 mm (7.4 inches) of precipitation per month. The driest months in Salt Spring Island are June, July and August. On average, 25 mm (1.0 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Salt Spring Island. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)176 (6.9)114 (4.5)96 (3.8)89 (3.5)47 (1.9)39 (1.5)14 (0.6)20 (0.8)89 (3.5)123 (4.8)206 (8.1)184 (7.3)
Average precipitation days (≥ 1 mm)15151413973411131818

Monthly sunshine hours in Salt Spring Island, Canada

The sunniest months in Salt Spring Island are June, July and August, when the sun shines an average of 11 hours 40 minutes a day. Least sunny months in Salt Spring Island: January, November and December receive an average of 3 hours 15 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Salt Spring Island. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours8114420623732934438334525318412295
Mean daily daylight hours8h 47m10h 11m11h 57m13h 44m15h 17m16h 4m15h 37m14h 14m12h 30m10h 43m9h 9m8h 19m

Solar UV radiation in Salt Spring Island, Canada

Salt Spring Island experiences the highest level of ultraviolet (UV) radiation in June, July 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 Salt Spring Island UV Index data.

Average daily maximum UV levels by month for Salt Spring Island. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)235689987421