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Monthly climate in Longnes, Île-de-France, France

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Longnes features a oceanic climate (Cfb).Temperatures typically range between 5 °C (41 °F) and 20 °C (68 °F) through the year, but rarely can drop to -8 °C (17 °F) or can rise to as high as 40 °C (104 °F).The average annual precipitation amounts to about 771 mm (30.3 inches) and receives 137 rainy days on the 1 mm (0.04 inches) threshold annually.Longnes enjoys an average of 3466 hours of sunshine throughout the year, and daylight varies from 8 hours 17 minutes to 16 hours 6 minutes per day.

Monthly average temperatures in Longnes, Île-de-France, France §

The warmest months in Longnes are June, July and August, with daily mean temperatures ranging from 18 to 20 °C (64 - 68 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 5 to 6 °C (41 - 43 °F) throughout the day. On average each year, Longnes experiences 33 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 Longnes, Île-de-France, France.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to June 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum 15°C
(59°F)		 19°C
(67°F)		 24°C
(75°F)		 26°C
(79°F)		 28°C
(83°F)		 35°C
(95°F)		 40°C
(104°F)		 37°C
(98°F)		 33°C
(91°F)		 25°C
(78°F)		 18°C
(65°F)		 15°C
(59°F)
Mean maximum 13°C
(55°F)		 16°C
(61°F)		 20°C
(68°F)		 24°C
(75°F)		 26°C
(79°F)		 30°C
(86°F)		 33°C
(92°F)		 32°C
(90°F)		 28°C
(83°F)		 23°C
(74°F)		 17°C
(63°F)		 15°C
(59°F)
Average high 7°C
(45°F)		 9°C
(49°F)		 12°C
(54°F)		 16°C
(60°F)		 18°C
(65°F)		 23°C
(73°F)		 25°C
(77°F)		 24°C
(76°F)		 21°C
(71°F)		 16°C
(62°F)		 11°C
(52°F)		 8°C
(48°F)
Daily mean 5°C
(41°F)		 6°C
(43°F)		 8°C
(47°F)		 11°C
(51°F)		 14°C
(57°F)		 18°C
(64°F)		 20°C
(68°F)		 19°C
(67°F)		 16°C
(61°F)		 12°C
(55°F)		 8°C
(46°F)		 6°C
(43°F)
Average low 2°C
(36°F)		 3°C
(37°F)		 4°C
(40°F)		 5°C
(42°F)		 9°C
(48°F)		 13°C
(55°F)		 14°C
(58°F)		 14°C
(58°F)		 11°C
(53°F)		 9°C
(48°F)		 5°C
(41°F)		 4°C
(39°F)
Mean minimum -4°C
(26°F)		 -4°C
(26°F)		 -2°C
(29°F)		 -1°C
(30°F)		 2°C
(37°F)		 7°C
(45°F)		 10°C
(51°F)		 9°C
(48°F)		 6°C
(42°F)		 3°C
(37°F)		 -1°C
(30°F)		 -2°C
(28°F)
Minimum -7°C
(19°F)		 -7°C
(20°F)		 -8°C
(17°F)		 -3°C
(27°F)		 0°C
(33°F)		 6°C
(43°F)		 8°C
(46°F)		 6°C
(43°F)		 4°C
(39°F)		 2°C
(35°F)		 -3°C
(27°F)		 -3°C
(26°F)

Compare climate in Longnes with other places

Compare temperature, precipitation, sunshine, UV index in Longnes, Île-de-France, France with other places around the world.

Monthly average precipitation in Longnes, Île-de-France, France §

Longnes usually has the most precipitation in May, June and December, with an average of 14 rainy days and 87 mm (3.4 inches) of precipitation per month.The driest months in Longnes are April, July and September. On average, 40 mm (1.6 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Longnes, Île-de-France, France.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average precipitation mm (inches) 51 (2.0) 64 (2.5) 74 (2.9) 36 (1.4) 80 (3.1) 83 (3.3) 44 (1.7) 60 (2.3) 40 (1.6) 76 (3.0) 66 (2.6) 97 (3.8)
Average precipitation days (≥ 1 mm) 10 12 14 7 13 12 8 10 9 12 12 18

Monthly sunshine hours in Longnes, Île-de-France, France §

The sunniest months in Longnes are May, June and July, when the sun shines an average of 13 hours 4 minutes a day.Least sunny months in Longnes: January, November and December receive an average of 5 hours 17 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Longnes, Île-de-France, France.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Mean monthly sunshine hours 125 199 266 349 388 406 407 377 319 263 198 161
Mean daily daylight hours 8h 44m 10h 9m 11h 55m 13h 44m 15h 17m 16h 6m 15h 40m 14h 16m 12h 32m 10h 44m 9h 8m 8h 17m

Solar UV radiation in Longnes, Île-de-France, France §

Longnes experiences the highest level of ultraviolet (UV) radiation in May, June 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 Longnes UV Index data.

Average daily maximum UV levels by month for Longnes, Île-de-France, France.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2022 to January 2023.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (month maximum) 2 3 4 6 8 9 8 8 6 4 2 1