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Monthly climate in Ornex, France

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Ornex features a oceanic climate (Cfb). Temperatures typically range between 1 °C (35 °F) and 19 °C (67 °F) through the year, but rarely can drop to -13 °C (10 °F) or can rise to as high as 35 °C (95 °F). The average annual precipitation amounts to about 1537 mm (60.5 inches) and receives 155 rainy days on the 1 mm (0.04 inches) threshold annually. Ornex enjoys an average of 3454 hours of sunshine throughout the year, and daylight varies from 8 hours 40 minutes to 15 hours 41 minutes per day.

Monthly average temperatures in Ornex, France

The warmest months in Ornex are June, July and August, with daily mean temperatures ranging from 18 to 19 °C (64 - 67 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 1 to 4 °C (35 - 40 °F) throughout the day. On average each year, Ornex experiences 40 days above 25 °C (77.0 °F) and 67 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Ornex. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum13°C
(56°F)		19°C
(66°F)		21°C
(70°F)		25°C
(77°F)		29°C
(84°F)		34°C
(94°F)		34°C
(93°F)		35°C
(95°F)		28°C
(83°F)		23°C
(73°F)		18°C
(65°F)		13°C
(56°F)
Mean maximum10°C
(50°F)		16°C
(61°F)		19°C
(66°F)		23°C
(73°F)		26°C
(78°F)		28°C
(82°F)		31°C
(89°F)		32°C
(90°F)		27°C
(80°F)		21°C
(70°F)		16°C
(61°F)		12°C
(53°F)
Average high5°C
(41°F)		8°C
(47°F)		11°C
(52°F)		15°C
(60°F)		18°C
(64°F)		23°C
(73°F)		25°C
(77°F)		24°C
(76°F)		20°C
(69°F)		15°C
(60°F)		9°C
(48°F)		6°C
(42°F)
Daily mean1°C
(35°F)		4°C
(40°F)		6°C
(44°F)		10°C
(50°F)		13°C
(56°F)		18°C
(64°F)		19°C
(67°F)		19°C
(67°F)		15°C
(60°F)		11°C
(51°F)		5°C
(42°F)		3°C
(37°F)
Average low-1°C
(30°F)		0°C
(33°F)		2°C
(35°F)		4°C
(40°F)		8°C
(47°F)		13°C
(55°F)		14°C
(58°F)		14°C
(58°F)		11°C
(51°F)		6°C
(44°F)		2°C
(36°F)		0°C
(32°F)
Mean minimum-7°C
(20°F)		-5°C
(23°F)		-5°C
(24°F)		-3°C
(27°F)		2°C
(36°F)		8°C
(46°F)		9°C
(49°F)		8°C
(47°F)		5°C
(41°F)		1°C
(35°F)		-2°C
(29°F)		-6°C
(22°F)
Minimum-13°C
(10°F)		-12°C
(11°F)		-11°C
(12°F)		-5°C
(24°F)		-1°C
(31°F)		6°C
(43°F)		9°C
(48°F)		6°C
(44°F)		3°C
(38°F)		-0°C
(32°F)		-3°C
(27°F)		-9°C
(17°F)

Compare climate in Ornex with other places

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

Monthly average precipitation in Ornex, France

Ornex usually has the most precipitation in March, May and December, with an average of 16 rainy days and 183 mm (7.2 inches) of precipitation per month. The driest months in Ornex are February, April and September. On average, 83 mm (3.3 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Ornex. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)128 (5.0)101 (4.0)151 (5.9)64 (2.5)174 (6.8)130 (5.1)117 (4.6)119 (4.7)83 (3.3)126 (5.0)121 (4.7)224 (8.8)
Average precipitation days (≥ 1 mm)11121491615131310121218

Monthly sunshine hours in Ornex, France

The sunniest months in Ornex are June, July and August, when the sun shines an average of 12 hours 48 minutes a day. Least sunny months in Ornex: January, November 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 Ornex. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours143214279344348390409377319266195165
Mean daily daylight hours9h 4m10h 20m11h 56m13h 34m14h 58m15h 41m15h 18m14h 4m12h 29m10h 52m9h 25m8h 40m

Solar UV radiation in Ornex, France

Ornex experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 8 - 10, which corresponds to the Very High category of sun exposure. January, February 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 Ornex UV Index data.

Average daily maximum UV levels by month for Ornex. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)2367810986532