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Monthly climate in Sark, Guernsey

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Sark features a oceanic climate (Cfb).Temperatures typically range between 9 °C (48 °F) and 17 °C (63 °F) through the year, but rarely can drop to -1 °C (31 °F) or can rise to as high as 23 °C (73 °F).The average annual precipitation amounts to about 1053 mm (41.5 inches) and receives 157 rainy days on the 1 mm (0.04 inches) threshold annually.Sark enjoys an average of 3448 hours of sunshine throughout the year, and daylight varies from 8 hours 13 minutes to 16 hours 10 minutes per day.

Monthly average temperatures in Sark, Guernsey §

The warmest months in Sark are July, August and September, with daily mean temperatures ranging from 17 to 17 °C (62 - 63 °F) throughout the day. The coldest temperatures usually occur in January, February and March, when daily mean temperatures range from 9 to 9 °C (48 - 49 °F) throughout the day. On average each year, Sark experiences 0 days above 25 °C (77.0 °F) and 0 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Sark, Guernsey.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to June 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum 13°C
(57°F)		 13°C
(55°F)		 14°C
(57°F)		 15°C
(60°F)		 19°C
(66°F)		 21°C
(70°F)		 23°C
(73°F)		 23°C
(73°F)		 22°C
(72°F)		 20°C
(68°F)		 17°C
(62°F)		 14°C
(57°F)
Mean maximum 12°C
(54°F)		 12°C
(54°F)		 12°C
(55°F)		 14°C
(58°F)		 16°C
(62°F)		 18°C
(65°F)		 21°C
(70°F)		 21°C
(69°F)		 21°C
(70°F)		 19°C
(66°F)		 16°C
(61°F)		 14°C
(57°F)
Average high 10°C
(50°F)		 10°C
(50°F)		 10°C
(50°F)		 11°C
(52°F)		 13°C
(55°F)		 15°C
(60°F)		 17°C
(63°F)		 18°C
(64°F)		 18°C
(64°F)		 16°C
(60°F)		 13°C
(55°F)		 11°C
(52°F)
Daily mean 9°C
(48°F)		 9°C
(48°F)		 9°C
(49°F)		 10°C
(50°F)		 12°C
(54°F)		 15°C
(59°F)		 17°C
(62°F)		 17°C
(63°F)		 17°C
(62°F)		 15°C
(59°F)		 12°C
(54°F)		 10°C
(51°F)
Average low 8°C
(46°F)		 8°C
(46°F)		 8°C
(47°F)		 9°C
(49°F)		 11°C
(53°F)		 14°C
(57°F)		 16°C
(61°F)		 17°C
(62°F)		 16°C
(61°F)		 14°C
(57°F)		 11°C
(52°F)		 9°C
(49°F)
Mean minimum 5°C
(41°F)		 3°C
(38°F)		 5°C
(41°F)		 6°C
(43°F)		 8°C
(47°F)		 12°C
(54°F)		 14°C
(58°F)		 15°C
(58°F)		 13°C
(56°F)		 11°C
(52°F)		 7°C
(46°F)		 5°C
(42°F)
Minimum 2°C
(37°F)		 0°C
(32°F)		 -1°C
(31°F)		 5°C
(41°F)		 7°C
(45°F)		 11°C
(53°F)		 14°C
(58°F)		 14°C
(57°F)		 12°C
(54°F)		 9°C
(48°F)		 6°C
(43°F)		 4°C
(40°F)

Compare climate in Sark with other places

Compare temperature, precipitation, sunshine, UV index in Sark, Guernsey with other places around the world.

Monthly average precipitation in Sark, Guernsey §

Sark usually has the most precipitation in October, November and December, with an average of 19 rainy days and 153 mm (6.0 inches) of precipitation per month.The driest months in Sark are April, July and August. On average, 45 mm (1.8 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Sark, Guernsey.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average precipitation mm (inches) 98 (3.9) 89 (3.5) 80 (3.2) 35 (1.4) 57 (2.2) 64 (2.5) 42 (1.7) 57 (2.2) 71 (2.8) 152 (6.0) 129 (5.1) 177 (7.0)
Average precipitation days (≥ 1 mm) 15 16 15 7 8 10 8 10 10 18 19 21

Monthly sunshine hours in Sark, Guernsey §

The sunniest months in Sark are May, June and July, when the sun shines an average of 13 hours 46 minutes a day.Least sunny months in Sark: January, February and December receive an average of 4 hours 23 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Sark, Guernsey.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Mean monthly sunshine hours 106 163 238 359 414 415 436 396 338 269 180 130
Mean daily daylight hours 8h 41m 10h 7m 11h 55m 13h 46m 15h 21m 16h 10m 15h 44m 14h 19m 12h 32m 10h 43m 9h 5m 8h 13m

Solar UV radiation in Sark, Guernsey §

Sark experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 7 - 9, which corresponds to the High / 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 Sark UV Index data.

Average daily maximum UV levels by month for Sark, Guernsey.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2022 to January 2023.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (month maximum) 2 3 4 6 7 9 8 7 6 4 2 1