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Monthly climate in Epernon, France

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Epernon features a oceanic climate (Cfb). Temperatures typically range between 4 °C (40 °F) and 20 °C (69 °F) through the year, but rarely can drop to -9 °C (15 °F) or can rise to as high as 40 °C (105 °F). The average annual precipitation amounts to about 735 mm (28.9 inches) and receives 132 rainy days on the 1 mm (0.04 inches) threshold annually. Epernon enjoys an average of 3482 hours of sunshine throughout the year, and daylight varies from 8 hours 21 minutes to 16 hours 2 minutes per day.

Monthly average temperatures in Epernon, France

The warmest months in Epernon are June, July and August, with daily mean temperatures ranging from 18 to 20 °C (65 - 69 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 4 to 6 °C (40 - 43 °F) throughout the day. On average each year, Epernon experiences 42 days above 25 °C (77.0 °F) and 31 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Epernon. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum14°C
(58°F)		20°C
(69°F)		24°C
(75°F)		27°C
(81°F)		29°C
(85°F)		35°C
(96°F)		40°C
(105°F)		37°C
(99°F)		34°C
(93°F)		26°C
(79°F)		18°C
(65°F)		15°C
(59°F)
Mean maximum13°C
(56°F)		16°C
(61°F)		20°C
(69°F)		24°C
(76°F)		26°C
(80°F)		30°C
(87°F)		34°C
(93°F)		33°C
(92°F)		29°C
(85°F)		24°C
(75°F)		17°C
(63°F)		14°C
(58°F)
Average high7°C
(45°F)		9°C
(49°F)		12°C
(54°F)		16°C
(61°F)		19°C
(66°F)		23°C
(74°F)		25°C
(78°F)		25°C
(77°F)		22°C
(72°F)		17°C
(62°F)		11°C
(51°F)		8°C
(47°F)
Daily mean4°C
(40°F)		6°C
(43°F)		8°C
(47°F)		11°C
(52°F)		14°C
(57°F)		18°C
(65°F)		20°C
(69°F)		20°C
(68°F)		16°C
(62°F)		12°C
(55°F)		7°C
(46°F)		6°C
(43°F)
Average low2°C
(36°F)		2°C
(37°F)		4°C
(39°F)		5°C
(42°F)		9°C
(48°F)		13°C
(56°F)		15°C
(59°F)		14°C
(58°F)		11°C
(53°F)		9°C
(48°F)		5°C
(40°F)		4°C
(39°F)
Mean minimum-4°C
(25°F)		-4°C
(25°F)		-3°C
(27°F)		-1°C
(30°F)		2°C
(36°F)		7°C
(46°F)		10°C
(50°F)		9°C
(48°F)		6°C
(42°F)		2°C
(36°F)		-2°C
(29°F)		-3°C
(27°F)
Minimum-8°C
(17°F)		-9°C
(15°F)		-9°C
(15°F)		-4°C
(26°F)		-0°C
(31°F)		6°C
(43°F)		7°C
(45°F)		6°C
(43°F)		4°C
(40°F)		1°C
(34°F)		-4°C
(26°F)		-4°C
(25°F)

Compare climate in Epernon with other places

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

Monthly average precipitation in Epernon, France

Epernon usually has the most precipitation in May, June and December, with an average of 13 rainy days and 81 mm (3.2 inches) of precipitation per month. The driest months in Epernon are April, July and September. On average, 40 mm (1.6 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Epernon. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)51 (2.0)60 (2.4)71 (2.8)33 (1.3)77 (3.0)76 (3.0)42 (1.6)55 (2.1)44 (1.7)72 (2.8)63 (2.5)92 (3.6)
Average precipitation days (≥ 1 mm)10131461311799111217

Monthly sunshine hours in Epernon, France

The sunniest months in Epernon are May, June and July, when the sun shines an average of 13 hours 2 minutes a day. Least sunny months in Epernon: January, February and December receive an average of 5 hours 28 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Epernon. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours131201267350389402408380318264203164
Mean daily daylight hours8h 47m10h 11m11h 55m13h 42m15h 14m16h 2m15h 37m14h 14m12h 31m10h 45m9h 11m8h 21m

Solar UV radiation in Epernon, France

Epernon 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 Epernon UV Index data.

Average daily maximum UV levels by month for Epernon. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)235689986421