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Monthly climate in Ouessant, Brittany, France

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Ouessant features a oceanic climate (Cfb).Temperatures typically range between 10 °C (50 °F) and 16 °C (62 °F) through the year, but rarely can drop to -1 °C (31 °F) or can rise to as high as 23 °C (74 °F).The average annual precipitation amounts to about 983 mm (38.7 inches) and receives 156 rainy days on the 1 mm (0.04 inches) threshold annually.Ouessant enjoys an average of 3644 hours of sunshine throughout the year, and daylight varies from 8 hours 21 minutes to 16 hours 1 minutes per day.

Monthly average temperatures in Ouessant, Brittany, France §

The warmest months in Ouessant are July, August and September, with daily mean temperatures ranging from 16 to 16 °C (60 - 62 °F) throughout the day. The coldest temperatures usually occur in January, February and March, when daily mean temperatures range from 10 to 10 °C (50 - 50 °F) throughout the day. On average each year, Ouessant 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 Ouessant, Brittany, France.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 15°C
(59°F)		 13°C
(56°F)		 14°C
(58°F)		 16°C
(60°F)		 19°C
(66°F)		 21°C
(71°F)		 23°C
(74°F)		 22°C
(72°F)		 22°C
(71°F)		 19°C
(66°F)		 16°C
(61°F)		 14°C
(58°F)
Mean maximum 13°C
(56°F)		 13°C
(55°F)		 13°C
(56°F)		 15°C
(58°F)		 16°C
(62°F)		 18°C
(66°F)		 21°C
(70°F)		 19°C
(67°F)		 19°C
(67°F)		 17°C
(63°F)		 15°C
(60°F)		 14°C
(57°F)
Average high 11°C
(51°F)		 11°C
(51°F)		 11°C
(51°F)		 12°C
(53°F)		 13°C
(56°F)		 15°C
(60°F)		 17°C
(63°F)		 17°C
(63°F)		 16°C
(62°F)		 15°C
(59°F)		 13°C
(55°F)		 12°C
(54°F)
Daily mean 10°C
(50°F)		 10°C
(50°F)		 10°C
(50°F)		 11°C
(51°F)		 12°C
(55°F)		 15°C
(58°F)		 16°C
(61°F)		 16°C
(62°F)		 16°C
(60°F)		 14°C
(57°F)		 12°C
(54°F)		 11°C
(52°F)
Average low 9°C
(48°F)		 9°C
(48°F)		 9°C
(48°F)		 10°C
(50°F)		 12°C
(53°F)		 14°C
(57°F)		 16°C
(60°F)		 16°C
(61°F)		 15°C
(59°F)		 13°C
(56°F)		 11°C
(52°F)		 10°C
(50°F)
Mean minimum 5°C
(42°F)		 5°C
(41°F)		 5°C
(42°F)		 7°C
(44°F)		 9°C
(49°F)		 12°C
(54°F)		 14°C
(58°F)		 14°C
(58°F)		 13°C
(55°F)		 11°C
(52°F)		 8°C
(46°F)		 6°C
(44°F)
Minimum 3°C
(37°F)		 1°C
(34°F)		 -1°C
(31°F)		 6°C
(43°F)		 9°C
(48°F)		 11°C
(52°F)		 14°C
(57°F)		 13°C
(55°F)		 12°C
(53°F)		 8°C
(46°F)		 7°C
(45°F)		 6°C
(43°F)

Compare climate in Ouessant with other places

Compare temperature, precipitation, sunshine, UV index in Ouessant, Brittany, France with other places around the world.

Monthly average precipitation in Ouessant, Brittany, France §

Ouessant usually has the most precipitation in October, November and December, with an average of 18 rainy days and 131 mm (5.2 inches) of precipitation per month.The driest months in Ouessant are April, May and July. On average, 45 mm (1.8 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Ouessant, Brittany, France.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) 94 (3.7) 106 (4.2) 81 (3.2) 41 (1.6) 48 (1.9) 67 (2.6) 45 (1.8) 59 (2.3) 49 (1.9) 122 (4.8) 116 (4.6) 155 (6.1)
Average precipitation days (≥ 1 mm) 16 16 16 7 10 10 8 9 10 15 18 21

Monthly sunshine hours in Ouessant, Brittany, France §

The sunniest months in Ouessant are May, June and July, when the sun shines an average of 13 hours 34 minutes a day.Least sunny months in Ouessant: January, February and December receive an average of 5 hours 43 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Ouessant, Brittany, France.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 134 207 295 358 411 411 425 389 334 274 223 177
Mean daily daylight hours 8h 48m 10h 11m 11h 55m 13h 42m 15h 14m 16h 1m 15h 36m 14h 14m 12h 31m 10h 45m 9h 11m 8h 21m

Solar UV radiation in Ouessant, Brittany, France §

Ouessant 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 Ouessant UV Index data.

Average daily maximum UV levels by month for Ouessant, Brittany, France.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 5 6 8 9 9 8 6 5 2 2