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Monthly climate in Saint-Hernin, France

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Saint-Hernin features a oceanic climate (Cfb). Temperatures typically range between 6 °C (43 °F) and 18 °C (64 °F) through the year, but rarely can drop to -7 °C (20 °F) or can rise to as high as 33 °C (92 °F). The average annual precipitation amounts to about 928 mm (36.5 inches) and receives 143 rainy days on the 1 mm (0.04 inches) threshold annually. Saint-Hernin enjoys an average of 3694 hours of sunshine throughout the year, and daylight varies from 8 hours 24 minutes to 15 hours 59 minutes per day.

Monthly average temperatures in Saint-Hernin, France

The warmest months in Saint-Hernin are June, July and August, with daily mean temperatures ranging from 16 to 18 °C (61 - 64 °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, Saint-Hernin experiences 16 days above 25 °C (77.0 °F) and 16 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Saint-Hernin. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum14°C
(57°F)		20°C
(69°F)		21°C
(70°F)		25°C
(77°F)		28°C
(82°F)		33°C
(92°F)		33°C
(92°F)		31°C
(88°F)		30°C
(87°F)		23°C
(73°F)		17°C
(64°F)		14°C
(57°F)
Mean maximum13°C
(55°F)		15°C
(59°F)		18°C
(65°F)		24°C
(75°F)		24°C
(76°F)		28°C
(83°F)		30°C
(87°F)		29°C
(84°F)		26°C
(79°F)		20°C
(68°F)		16°C
(61°F)		13°C
(56°F)
Average high9°C
(48°F)		10°C
(50°F)		12°C
(53°F)		15°C
(59°F)		17°C
(64°F)		20°C
(69°F)		22°C
(72°F)		21°C
(70°F)		20°C
(67°F)		16°C
(61°F)		12°C
(53°F)		10°C
(50°F)
Daily mean6°C
(43°F)		7°C
(45°F)		8°C
(47°F)		10°C
(51°F)		13°C
(55°F)		16°C
(61°F)		18°C
(64°F)		17°C
(62°F)		15°C
(59°F)		12°C
(54°F)		9°C
(48°F)		8°C
(46°F)
Average low3°C
(38°F)		4°C
(40°F)		5°C
(41°F)		6°C
(43°F)		8°C
(47°F)		12°C
(53°F)		13°C
(56°F)		13°C
(55°F)		11°C
(52°F)		9°C
(49°F)		6°C
(43°F)		5°C
(42°F)
Mean minimum-3°C
(27°F)		-2°C
(28°F)		-1°C
(30°F)		-0°C
(32°F)		2°C
(37°F)		7°C
(44°F)		9°C
(49°F)		8°C
(47°F)		6°C
(43°F)		3°C
(37°F)		1°C
(33°F)		-1°C
(31°F)
Minimum-7°C
(21°F)		-5°C
(23°F)		-7°C
(20°F)		-2°C
(29°F)		-0°C
(32°F)		5°C
(42°F)		7°C
(45°F)		7°C
(45°F)		5°C
(41°F)		-1°C
(30°F)		-1°C
(30°F)		-1°C
(30°F)

Compare climate in Saint-Hernin with other places

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

Monthly average precipitation in Saint-Hernin, France

Saint-Hernin usually has the most precipitation in June, October and December, with an average of 14 rainy days and 107 mm (4.2 inches) of precipitation per month. The driest months in Saint-Hernin are April, July and September. On average, 51 mm (2.0 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Saint-Hernin. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)67 (2.6)90 (3.5)78 (3.1)51 (2.0)78 (3.1)91 (3.6)50 (2.0)57 (2.2)52 (2.1)103 (4.1)85 (3.3)125 (4.9)
Average precipitation days (≥ 1 mm)1014148121291110141316

Monthly sunshine hours in Saint-Hernin, France

The sunniest months in Saint-Hernin are May, June and July, when the sun shines an average of 13 hours 42 minutes a day. Least sunny months in Saint-Hernin: January, February and December receive an average of 5 hours 52 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Saint-Hernin. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours140209298359416410433398338276227184
Mean daily daylight hours8h 50m10h 13m11h 55m13h 41m15h 12m15h 59m15h 34m14h 12m12h 31m10h 46m9h 13m8h 24m

Solar UV radiation in Saint-Hernin, France

Saint-Hernin 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 Saint-Hernin UV Index data.

Average daily maximum UV levels by month for Saint-Hernin. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)235689986522