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Monthly climate in Castelnau-le-Lez, France

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Castelnau-le-Lez features a hot-summer Mediterranean climate (Csa). Temperatures typically range between 7 °C (44 °F) and 25 °C (78 °F) through the year, but rarely can drop to -5 °C (23 °F) or can rise to as high as 43 °C (109 °F). The average annual precipitation amounts to about 838 mm (33.0 inches) and receives 90 rainy days on the 1 mm (0.04 inches) threshold annually. Castelnau-le-Lez enjoys an average of 3929 hours of sunshine throughout the year, and daylight varies from 8 hours 58 minutes to 15 hours 22 minutes per day.

Monthly average temperatures in Castelnau-le-Lez, France

The warmest months in Castelnau-le-Lez are June, July and August, with daily mean temperatures ranging from 22 to 25 °C (73 - 78 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 7 to 9 °C (44 - 49 °F) throughout the day. On average each year, Castelnau-le-Lez experiences 100 days above 25 °C (77.0 °F) and 12 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Castelnau-le-Lez. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum18°C
(65°F)		22°C
(72°F)		25°C
(78°F)		28°C
(82°F)		32°C
(90°F)		43°C
(109°F)		36°C
(97°F)		39°C
(102°F)		34°C
(93°F)		29°C
(84°F)		20°C
(68°F)		20°C
(68°F)
Mean maximum16°C
(61°F)		20°C
(68°F)		23°C
(73°F)		25°C
(77°F)		29°C
(85°F)		34°C
(93°F)		35°C
(95°F)		38°C
(100°F)		32°C
(90°F)		26°C
(79°F)		19°C
(67°F)		18°C
(64°F)
Average high11°C
(53°F)		14°C
(58°F)		16°C
(61°F)		19°C
(66°F)		23°C
(74°F)		28°C
(82°F)		31°C
(89°F)		31°C
(88°F)		27°C
(80°F)		21°C
(70°F)		15°C
(59°F)		12°C
(54°F)
Daily mean7°C
(44°F)		9°C
(49°F)		11°C
(52°F)		13°C
(57°F)		18°C
(64°F)		22°C
(73°F)		25°C
(78°F)		25°C
(77°F)		21°C
(69°F)		16°C
(61°F)		11°C
(52°F)		8°C
(46°F)
Average low3°C
(38°F)		5°C
(41°F)		6°C
(43°F)		8°C
(47°F)		12°C
(54°F)		17°C
(62°F)		19°C
(67°F)		19°C
(66°F)		15°C
(60°F)		12°C
(53°F)		7°C
(45°F)		4°C
(40°F)
Mean minimum-3°C
(28°F)		-1°C
(31°F)		-0°C
(32°F)		2°C
(36°F)		7°C
(45°F)		12°C
(55°F)		15°C
(60°F)		14°C
(58°F)		10°C
(50°F)		6°C
(43°F)		1°C
(34°F)		-2°C
(29°F)
Minimum-4°C
(24°F)		-5°C
(23°F)		-5°C
(23°F)		-1°C
(30°F)		4°C
(40°F)		9°C
(48°F)		13°C
(55°F)		12°C
(55°F)		8°C
(46°F)		5°C
(41°F)		-0°C
(32°F)		-3°C
(27°F)

Compare climate in Castelnau-le-Lez with other places

Compare temperature, precipitation, sunshine, UV index in Castelnau-le-Lez, France with other places around the world.

Monthly average precipitation in Castelnau-le-Lez, France

Castelnau-le-Lez usually has the most precipitation in April, October and November, with an average of 9 rainy days and 116 mm (4.6 inches) of precipitation per month. The driest months in Castelnau-le-Lez are June, July and August. On average, 36 mm (1.4 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Castelnau-le-Lez. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)63 (2.5)46 (1.8)78 (3.1)84 (3.3)73 (2.9)44 (1.7)22 (0.9)43 (1.7)60 (2.3)121 (4.8)143 (5.6)61 (2.4)
Average precipitation days (≥ 1 mm)7888884459129

Monthly sunshine hours in Castelnau-le-Lez, France

The sunniest months in Castelnau-le-Lez are May, June and July, when the sun shines an average of 13 hours 41 minutes a day. Least sunny months in Castelnau-le-Lez: January, February and December receive an average of 7 hours 34 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Castelnau-le-Lez. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours195255328350403421434402343300256237
Mean daily daylight hours9h 20m10h 29m11h 57m13h 27m14h 43m15h 22m15h 1m13h 53m12h 27m10h 58m9h 39m8h 58m

Solar UV radiation in Castelnau-le-Lez, France

Castelnau-le-Lez 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 Castelnau-le-Lez UV Index data.

Average daily maximum UV levels by month for Castelnau-le-Lez. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)24579101097532