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Monthly climate in Arcachon, Nouvelle-Aquitaine, France

Last updated: March 2, 2024

Under the Köppen–Geiger climate classification Arcachon features a oceanic climate (Cfb). Temperatures typically range between 8 °C (47 °F) and 21 °C (71 °F) through the year, but rarely can drop to -3 °C (27 °F) or can rise to as high as 33 °C (92 °F). The average annual precipitation amounts to about 951 mm (37.5 inches) and receives 134 rainy days on the 1 mm (0.04 inches) threshold annually. Arcachon enjoys an average of 3826 hours of sunshine throughout the year, and daylight varies from 8 hours 51 minutes to 15 hours 29 minutes per day.

Monthly average temperatures in Arcachon, Nouvelle-Aquitaine, France §

The warmest months in Arcachon are July, August and September, with daily mean temperatures ranging from 19 to 21 °C (67 - 71 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 8 to 10 °C (47 - 51 °F) throughout the day. On average each year, Arcachon experiences 27 days above 25 °C (77.0 °F) and 1 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Arcachon, Nouvelle-Aquitaine, 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 16°C
(61°F)		 18°C
(65°F)		 24°C
(75°F)		 25°C
(77°F)		 27°C
(81°F)		 33°C
(92°F)		 33°C
(92°F)		 31°C
(87°F)		 29°C
(85°F)		 24°C
(76°F)		 20°C
(68°F)		 16°C
(61°F)
Mean maximum 14°C
(58°F)		 16°C
(61°F)		 19°C
(67°F)		 22°C
(72°F)		 24°C
(76°F)		 28°C
(82°F)		 30°C
(87°F)		 29°C
(85°F)		 28°C
(83°F)		 23°C
(74°F)		 19°C
(66°F)		 15°C
(60°F)
Average high 10°C
(51°F)		 12°C
(54°F)		 14°C
(57°F)		 16°C
(61°F)		 18°C
(66°F)		 22°C
(71°F)		 24°C
(75°F)		 24°C
(75°F)		 22°C
(72°F)		 18°C
(65°F)		 14°C
(57°F)		 12°C
(54°F)
Daily mean 8°C
(47°F)		 10°C
(50°F)		 11°C
(52°F)		 13°C
(56°F)		 16°C
(61°F)		 19°C
(67°F)		 21°C
(71°F)		 21°C
(71°F)		 19°C
(67°F)		 16°C
(61°F)		 12°C
(54°F)		 10°C
(51°F)
Average low 7°C
(44°F)		 8°C
(47°F)		 9°C
(48°F)		 11°C
(51°F)		 14°C
(57°F)		 17°C
(63°F)		 19°C
(67°F)		 19°C
(66°F)		 17°C
(63°F)		 14°C
(58°F)		 10°C
(50°F)		 9°C
(48°F)
Mean minimum 2°C
(36°F)		 3°C
(37°F)		 4°C
(39°F)		 6°C
(43°F)		 10°C
(50°F)		 14°C
(58°F)		 16°C
(61°F)		 15°C
(60°F)		 13°C
(55°F)		 9°C
(48°F)		 5°C
(41°F)		 4°C
(39°F)
Minimum -1°C
(31°F)		 -3°C
(27°F)		 -2°C
(29°F)		 3°C
(38°F)		 7°C
(45°F)		 12°C
(54°F)		 15°C
(60°F)		 15°C
(59°F)		 11°C
(53°F)		 6°C
(44°F)		 4°C
(39°F)		 3°C
(37°F)

Compare climate in Arcachon with other places

Compare temperature, precipitation, sunshine, UV index in Arcachon, Nouvelle-Aquitaine, France with other places around the world.

Monthly average precipitation in Arcachon, Nouvelle-Aquitaine, France §

Arcachon usually has the most precipitation in May, November and December, with an average of 14 rainy days and 120 mm (4.7 inches) of precipitation per month. The driest months in Arcachon are April, July and August. On average, 47 mm (1.8 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Arcachon, Nouvelle-Aquitaine, 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) 73 (2.9) 69 (2.7) 71 (2.8) 52 (2.0) 101 (4.0) 96 (3.8) 44 (1.7) 44 (1.7) 58 (2.3) 86 (3.4) 108 (4.2) 151 (5.9)
Average precipitation days (≥ 1 mm) 11 11 13 8 13 12 8 7 9 11 13 18

Monthly sunshine hours in Arcachon, Nouvelle-Aquitaine, France §

The sunniest months in Arcachon are June, July and August, when the sun shines an average of 13 hours 33 minutes a day. Least sunny months in Arcachon: January, February and December receive an average of 6 hours 49 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Arcachon, Nouvelle-Aquitaine, 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 176 240 312 354 399 416 429 402 345 300 245 204
Mean daily daylight hours 9h 14m 10h 26m 11h 56m 13h 30m 14h 49m 15h 29m 15h 8m 13h 57m 12h 28m 10h 55m 9h 34m 8h 51m

Solar UV radiation in Arcachon, Nouvelle-Aquitaine, France §

Arcachon experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 8 - 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 3. For more detailed information, check out our hourly Arcachon UV Index data.

Average daily maximum UV levels by month for Arcachon, Nouvelle-Aquitaine, 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 6 7 8 10 9 8 7 5 3 2

Detailed Monthly Weather Insights for Arcachon, Nouvelle-Aquitaine, France

Discover in-depth weather details for every month in Arcachon. Click through the links below for comprehensive overviews of temperature trends, precipitation levels, sunshine hours, and solar UV radiation specifics. Whether planning a visit or simply curious about Arcachon's climate nuances, these monthly breakdowns provide the information you need for an informed understanding of what to expect throughout the year.

Each link leads to a detailed account of the typical weather conditions for that month, providing both locals and tourists with vital information to plan their daily activities, wardrobe, and travel itineraries accordingly.