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Monthly climate in Groffliers, France

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Groffliers features a oceanic climate (Cfb). Temperatures typically range between 6 °C (43 °F) and 18 °C (65 °F) through the year, but rarely can drop to -5 °C (22 °F) or can rise to as high as 35 °C (95 °F). The average annual precipitation amounts to about 981 mm (38.6 inches) and receives 158 rainy days on the 1 mm (0.04 inches) threshold annually. Groffliers enjoys an average of 3579 hours of sunshine throughout the year, and daylight varies from 8 hours 4 minutes to 16 hours 21 minutes per day.

Monthly average temperatures in Groffliers, France

The warmest months in Groffliers are July, August and September, with daily mean temperatures ranging from 16 to 18 °C (62 - 65 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 6 to 8 °C (43 - 46 °F) throughout the day. On average each year, Groffliers experiences 5 days above 25 °C (77.0 °F) and 6 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Groffliers. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum14°C
(57°F)		15°C
(60°F)		20°C
(69°F)		22°C
(71°F)		24°C
(76°F)		30°C
(87°F)		35°C
(95°F)		32°C
(90°F)		26°C
(80°F)		23°C
(74°F)		18°C
(64°F)		14°C
(57°F)
Mean maximum12°C
(54°F)		13°C
(56°F)		16°C
(62°F)		20°C
(68°F)		22°C
(71°F)		25°C
(78°F)		28°C
(83°F)		27°C
(81°F)		24°C
(76°F)		21°C
(69°F)		16°C
(61°F)		13°C
(56°F)
Average high8°C
(46°F)		9°C
(48°F)		10°C
(51°F)		13°C
(55°F)		15°C
(60°F)		19°C
(66°F)		21°C
(69°F)		21°C
(69°F)		19°C
(66°F)		16°C
(60°F)		11°C
(53°F)		9°C
(49°F)
Daily mean6°C
(43°F)		7°C
(44°F)		8°C
(47°F)		10°C
(50°F)		13°C
(55°F)		16°C
(61°F)		18°C
(65°F)		18°C
(65°F)		16°C
(62°F)		14°C
(57°F)		9°C
(49°F)		8°C
(46°F)
Average low4°C
(40°F)		5°C
(41°F)		6°C
(43°F)		7°C
(45°F)		10°C
(50°F)		14°C
(57°F)		15°C
(60°F)		16°C
(61°F)		14°C
(57°F)		12°C
(53°F)		8°C
(46°F)		6°C
(43°F)
Mean minimum-0°C
(32°F)		-1°C
(31°F)		1°C
(34°F)		2°C
(36°F)		5°C
(42°F)		10°C
(51°F)		12°C
(54°F)		13°C
(55°F)		10°C
(50°F)		7°C
(45°F)		3°C
(38°F)		1°C
(34°F)
Minimum-3°C
(27°F)		-4°C
(25°F)		-5°C
(22°F)		1°C
(34°F)		4°C
(39°F)		9°C
(48°F)		11°C
(52°F)		12°C
(54°F)		7°C
(46°F)		3°C
(38°F)		2°C
(36°F)		-1°C
(30°F)

Compare climate in Groffliers with other places

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

Monthly average precipitation in Groffliers, France

Groffliers usually has the most precipitation in October, November and December, with an average of 17 rainy days and 124 mm (4.9 inches) of precipitation per month. The driest months in Groffliers are April, June and July. On average, 49 mm (1.9 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Groffliers. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)84 (3.3)77 (3.0)81 (3.2)33 (1.3)71 (2.8)64 (2.5)50 (2.0)76 (3.0)74 (2.9)120 (4.7)104 (4.1)148 (5.8)
Average precipitation days (≥ 1 mm)13131571110101412171620

Monthly sunshine hours in Groffliers, France

The sunniest months in Groffliers are May, June and July, when the sun shines an average of 13 hours 37 minutes a day. Least sunny months in Groffliers: January, February and December receive an average of 5 hours 23 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Groffliers. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours127196284357409417426395328262207166
Mean daily daylight hours8h 32m10h 3m11h 55m13h 50m15h 29m16h 21m15h 53m14h 24m12h 33m10h 40m8h 58m8h 4m

Solar UV radiation in Groffliers, France

Groffliers 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, February 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 Groffliers UV Index data.

Average daily maximum UV levels by month for Groffliers. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)224679885421