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Monthly climate in Sully, France

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Sully features a oceanic climate (Cfb). Temperatures typically range between 3 °C (37 °F) and 21 °C (70 °F) through the year, but rarely can drop to -12 °C (10 °F) or can rise to as high as 39 °C (103 °F). The average annual precipitation amounts to about 862 mm (33.9 inches) and receives 132 rainy days on the 1 mm (0.04 inches) threshold annually. Sully enjoys an average of 3465 hours of sunshine throughout the year, and daylight varies from 8 hours 34 minutes to 15 hours 48 minutes per day.

Monthly average temperatures in Sully, France

The warmest months in Sully are June, July and August, with daily mean temperatures ranging from 19 to 21 °C (67 - 70 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 3 to 5 °C (37 - 41 °F) throughout the day. On average each year, Sully experiences 54 days above 25 °C (77.0 °F) and 47 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Sully. 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)		23°C
(73°F)		27°C
(81°F)		30°C
(87°F)		37°C
(100°F)		39°C
(103°F)		38°C
(101°F)		33°C
(92°F)		26°C
(78°F)		20°C
(69°F)		15°C
(59°F)
Mean maximum11°C
(53°F)		16°C
(61°F)		20°C
(68°F)		24°C
(75°F)		27°C
(81°F)		31°C
(89°F)		34°C
(94°F)		35°C
(96°F)		31°C
(87°F)		23°C
(74°F)		18°C
(65°F)		14°C
(57°F)
Average high5°C
(42°F)		9°C
(48°F)		12°C
(54°F)		16°C
(61°F)		19°C
(67°F)		24°C
(76°F)		26°C
(80°F)		26°C
(80°F)		23°C
(73°F)		16°C
(62°F)		10°C
(50°F)		7°C
(44°F)
Daily mean3°C
(37°F)		5°C
(41°F)		7°C
(46°F)		11°C
(52°F)		14°C
(58°F)		19°C
(67°F)		21°C
(70°F)		21°C
(69°F)		17°C
(62°F)		12°C
(54°F)		6°C
(44°F)		5°C
(40°F)
Average low0°C
(33°F)		2°C
(35°F)		3°C
(38°F)		5°C
(42°F)		9°C
(48°F)		13°C
(57°F)		15°C
(59°F)		15°C
(59°F)		11°C
(53°F)		8°C
(47°F)		3°C
(38°F)		2°C
(36°F)
Mean minimum-5°C
(23°F)		-5°C
(22°F)		-4°C
(25°F)		-2°C
(29°F)		2°C
(37°F)		8°C
(47°F)		11°C
(52°F)		9°C
(49°F)		6°C
(43°F)		2°C
(35°F)		-2°C
(29°F)		-3°C
(27°F)
Minimum-11°C
(13°F)		-10°C
(14°F)		-12°C
(10°F)		-3°C
(27°F)		0°C
(33°F)		7°C
(46°F)		9°C
(49°F)		6°C
(43°F)		4°C
(39°F)		0°C
(33°F)		-3°C
(27°F)		-4°C
(25°F)

Compare climate in Sully with other places

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

Monthly average precipitation in Sully, France

Sully usually has the most precipitation in March, May and December, with an average of 14 rainy days and 98 mm (3.8 inches) of precipitation per month. The driest months in Sully are April, August and September. On average, 48 mm (1.9 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Sully. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)73 (2.9)60 (2.3)81 (3.2)46 (1.8)89 (3.5)78 (3.1)61 (2.4)46 (1.8)51 (2.0)79 (3.1)74 (2.9)124 (4.9)
Average precipitation days (≥ 1 mm)11101381312988111217

Monthly sunshine hours in Sully, France

The sunniest months in Sully are June, July and August, when the sun shines an average of 13 hours 7 minutes a day. Least sunny months in Sully: January, November and December receive an average of 5 hours 7 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Sully. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours125207273349377405415386325253194152
Mean daily daylight hours8h 59m10h 17m11h 56m13h 37m15h 3m15h 48m15h 24m14h 7m12h 30m10h 50m9h 21m8h 34m

Solar UV radiation in Sully, France

Sully 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 Sully UV Index data.

Average daily maximum UV levels by month for Sully. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)235689986421