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Monthly climate in Mergey, France

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Mergey features a oceanic climate (Cfb). Temperatures typically range between 4 °C (39 °F) and 21 °C (70 °F) through the year, but rarely can drop to -11 °C (13 °F) or can rise to as high as 42 °C (107 °F). The average annual precipitation amounts to about 782 mm (30.8 inches) and receives 125 rainy days on the 1 mm (0.04 inches) threshold annually. Mergey enjoys an average of 3463 hours of sunshine throughout the year, and daylight varies from 8 hours 22 minutes to 16 hours 1 minutes per day.

Monthly average temperatures in Mergey, France

The warmest months in Mergey are June, July and August, with daily mean temperatures ranging from 19 to 21 °C (67 - 70 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 4 to 6 °C (39 - 43 °F) throughout the day. On average each year, Mergey experiences 54 days above 25 °C (77.0 °F) and 35 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Mergey. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum15°C
(59°F)		20°C
(69°F)		24°C
(76°F)		28°C
(83°F)		33°C
(91°F)		36°C
(97°F)		42°C
(107°F)		38°C
(101°F)		34°C
(94°F)		27°C
(80°F)		21°C
(71°F)		17°C
(63°F)
Mean maximum13°C
(56°F)		17°C
(62°F)		21°C
(70°F)		25°C
(77°F)		28°C
(83°F)		32°C
(89°F)		35°C
(94°F)		35°C
(95°F)		31°C
(88°F)		25°C
(77°F)		19°C
(66°F)		15°C
(59°F)
Average high7°C
(44°F)		10°C
(50°F)		13°C
(55°F)		17°C
(62°F)		20°C
(68°F)		25°C
(77°F)		26°C
(80°F)		26°C
(79°F)		23°C
(73°F)		17°C
(63°F)		11°C
(52°F)		8°C
(47°F)
Daily mean4°C
(39°F)		6°C
(43°F)		8°C
(47°F)		11°C
(52°F)		15°C
(59°F)		19°C
(67°F)		21°C
(70°F)		21°C
(69°F)		17°C
(63°F)		13°C
(55°F)		7°C
(45°F)		6°C
(43°F)
Average low1°C
(35°F)		3°C
(37°F)		4°C
(39°F)		5°C
(42°F)		9°C
(49°F)		14°C
(57°F)		15°C
(60°F)		15°C
(59°F)		12°C
(53°F)		9°C
(48°F)		4°C
(40°F)		3°C
(38°F)
Mean minimum-4°C
(24°F)		-4°C
(24°F)		-3°C
(27°F)		-1°C
(30°F)		3°C
(37°F)		8°C
(47°F)		11°C
(52°F)		10°C
(49°F)		6°C
(44°F)		2°C
(36°F)		-2°C
(28°F)		-4°C
(25°F)
Minimum-8°C
(17°F)		-8°C
(18°F)		-11°C
(13°F)		-4°C
(26°F)		1°C
(34°F)		7°C
(45°F)		8°C
(47°F)		7°C
(45°F)		4°C
(40°F)		1°C
(34°F)		-4°C
(26°F)		-4°C
(24°F)

Compare climate in Mergey with other places

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

Monthly average precipitation in Mergey, France

Mergey usually has the most precipitation in January, October and December, with an average of 13 rainy days and 87 mm (3.4 inches) of precipitation per month. The driest months in Mergey are April, August and September. On average, 43 mm (1.7 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Mergey. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)77 (3.0)66 (2.6)69 (2.7)32 (1.3)69 (2.7)66 (2.6)52 (2.0)48 (1.9)51 (2.0)76 (3.0)69 (2.7)109 (4.3)
Average precipitation days (≥ 1 mm)1211136119887111217

Monthly sunshine hours in Mergey, France

The sunniest months in Mergey are May, June and July, when the sun shines an average of 13 hours 7 minutes a day. Least sunny months in Mergey: January, November and December receive an average of 5 hours 1 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Mergey. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours119203261352389407410388327259195147
Mean daily daylight hours8h 48m10h 11m11h 55m13h 42m15h 14m16h 1m15h 36m14h 14m12h 31m10h 46m9h 11m8h 22m

Solar UV radiation in Mergey, France

Mergey 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 Mergey UV Index data.

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