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Monthly climate in Grillon, France

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Grillon features a hot-summer Mediterranean climate (Csa). Temperatures typically range between 4 °C (40 °F) and 23 °C (74 °F) through the year, but rarely can drop to -7 °C (19 °F) or can rise to as high as 38 °C (101 °F). The average annual precipitation amounts to about 796 mm (31.3 inches) and receives 101 rainy days on the 1 mm (0.04 inches) threshold annually. Grillon enjoys an average of 3859 hours of sunshine throughout the year, and daylight varies from 8 hours 53 minutes to 15 hours 27 minutes per day.

Monthly average temperatures in Grillon, France

The warmest months in Grillon are June, July and August, with daily mean temperatures ranging from 21 to 23 °C (70 - 74 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 4 to 7 °C (40 - 44 °F) throughout the day. On average each year, Grillon experiences 75 days above 25 °C (77.0 °F) and 28 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Grillon. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum15°C
(60°F)		20°C
(68°F)		22°C
(71°F)		25°C
(78°F)		32°C
(89°F)		38°C
(101°F)		36°C
(97°F)		37°C
(98°F)		32°C
(91°F)		25°C
(78°F)		19°C
(66°F)		16°C
(62°F)
Mean maximum13°C
(56°F)		17°C
(64°F)		20°C
(69°F)		24°C
(75°F)		27°C
(82°F)		31°C
(88°F)		34°C
(94°F)		35°C
(96°F)		30°C
(87°F)		24°C
(75°F)		18°C
(65°F)		15°C
(59°F)
Average high8°C
(46°F)		11°C
(52°F)		14°C
(57°F)		17°C
(63°F)		21°C
(70°F)		26°C
(79°F)		29°C
(85°F)		29°C
(84°F)		25°C
(76°F)		19°C
(66°F)		12°C
(55°F)		9°C
(48°F)
Daily mean4°C
(40°F)		7°C
(44°F)		9°C
(48°F)		12°C
(54°F)		16°C
(61°F)		21°C
(70°F)		23°C
(74°F)		23°C
(73°F)		19°C
(66°F)		14°C
(57°F)		8°C
(47°F)		5°C
(42°F)
Average low1°C
(35°F)		3°C
(37°F)		4°C
(40°F)		7°C
(44°F)		11°C
(51°F)		15°C
(60°F)		17°C
(63°F)		17°C
(63°F)		13°C
(56°F)		9°C
(49°F)		5°C
(42°F)		3°C
(37°F)
Mean minimum-3°C
(27°F)		-3°C
(27°F)		-2°C
(28°F)		0°C
(33°F)		5°C
(41°F)		11°C
(52°F)		13°C
(56°F)		12°C
(55°F)		8°C
(47°F)		4°C
(39°F)		-1°C
(30°F)		-3°C
(28°F)
Minimum-5°C
(23°F)		-7°C
(19°F)		-7°C
(20°F)		-3°C
(27°F)		2°C
(36°F)		9°C
(48°F)		11°C
(52°F)		11°C
(51°F)		6°C
(44°F)		2°C
(35°F)		-3°C
(28°F)		-4°C
(25°F)

Compare climate in Grillon with other places

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

Monthly average precipitation in Grillon, France

Grillon usually has the most precipitation in May, November and December, with an average of 12 rainy days and 102 mm (4.0 inches) of precipitation per month. The driest months in Grillon are July, August and September. On average, 36 mm (1.4 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Grillon. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)42 (1.7)46 (1.8)67 (2.6)67 (2.6)101 (4.0)60 (2.4)28 (1.1)40 (1.6)40 (1.6)100 (3.9)104 (4.1)101 (4.0)
Average precipitation days (≥ 1 mm)9710812855671113

Monthly sunshine hours in Grillon, France

The sunniest months in Grillon are June, July and August, when the sun shines an average of 13 hours 40 minutes a day. Least sunny months in Grillon: January, November and December receive an average of 7 hours 9 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Grillon. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours185250320341392420436401341296243228
Mean daily daylight hours9h 15m10h 26m11h 56m13h 29m14h 48m15h 27m15h 6m13h 56m12h 28m10h 56m9h 35m8h 53m

Solar UV radiation in Grillon, France

Grillon experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 9 - 10, which corresponds to the Very High category of sun exposure. January, November 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 Grillon UV Index data.

Average daily maximum UV levels by month for Grillon. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)2457810997532