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Monthly climate in Duclair, France

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Duclair features a oceanic climate (Cfb). Temperatures typically range between 5 °C (41 °F) and 19 °C (66 °F) through the year, but rarely can drop to -8 °C (17 °F) or can rise to as high as 39 °C (102 °F). The average annual precipitation amounts to about 877 mm (34.5 inches) and receives 146 rainy days on the 1 mm (0.04 inches) threshold annually. Duclair enjoys an average of 3587 hours of sunshine throughout the year, and daylight varies from 8 hours 12 minutes to 16 hours 11 minutes per day.

Monthly average temperatures in Duclair, France

The warmest months in Duclair are June, July and August, with daily mean temperatures ranging from 17 to 19 °C (63 - 66 °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 - 44 °F) throughout the day. On average each year, Duclair experiences 24 days above 25 °C (77.0 °F) and 24 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Duclair. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum15°C
(59°F)		18°C
(65°F)		23°C
(74°F)		26°C
(80°F)		27°C
(82°F)		34°C
(93°F)		39°C
(102°F)		36°C
(98°F)		30°C
(87°F)		24°C
(76°F)		18°C
(65°F)		15°C
(59°F)
Mean maximum12°C
(55°F)		15°C
(59°F)		19°C
(67°F)		24°C
(75°F)		25°C
(77°F)		29°C
(85°F)		33°C
(91°F)		31°C
(89°F)		27°C
(81°F)		22°C
(72°F)		16°C
(61°F)		14°C
(58°F)
Average high7°C
(45°F)		9°C
(49°F)		12°C
(53°F)		15°C
(59°F)		18°C
(64°F)		22°C
(71°F)		24°C
(75°F)		23°C
(73°F)		20°C
(69°F)		16°C
(61°F)		11°C
(52°F)		8°C
(48°F)
Daily mean5°C
(41°F)		6°C
(43°F)		8°C
(46°F)		10°C
(51°F)		13°C
(56°F)		17°C
(63°F)		19°C
(66°F)		18°C
(65°F)		16°C
(60°F)		12°C
(54°F)		8°C
(46°F)		6°C
(44°F)
Average low2°C
(36°F)		3°C
(38°F)		4°C
(40°F)		5°C
(42°F)		9°C
(48°F)		12°C
(55°F)		14°C
(58°F)		14°C
(58°F)		11°C
(53°F)		9°C
(49°F)		5°C
(41°F)		4°C
(40°F)
Mean minimum-4°C
(26°F)		-4°C
(26°F)		-2°C
(29°F)		-1°C
(31°F)		3°C
(37°F)		7°C
(45°F)		10°C
(51°F)		9°C
(48°F)		6°C
(43°F)		3°C
(38°F)		-0°C
(32°F)		-2°C
(28°F)
Minimum-7°C
(20°F)		-7°C
(20°F)		-8°C
(17°F)		-3°C
(28°F)		1°C
(34°F)		6°C
(44°F)		8°C
(47°F)		7°C
(44°F)		4°C
(39°F)		1°C
(35°F)		-2°C
(28°F)		-4°C
(26°F)

Compare climate in Duclair with other places

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

Monthly average precipitation in Duclair, France

Duclair usually has the most precipitation in May, October and December, with an average of 14 rainy days and 97 mm (3.8 inches) of precipitation per month. The driest months in Duclair are April, July and September. On average, 47 mm (1.9 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Duclair. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)64 (2.5)69 (2.7)78 (3.1)38 (1.5)93 (3.6)78 (3.1)52 (2.0)74 (2.9)52 (2.1)82 (3.2)81 (3.2)116 (4.6)
Average precipitation days (≥ 1 mm)1113158131291110131318

Monthly sunshine hours in Duclair, France

The sunniest months in Duclair are May, June and July, when the sun shines an average of 13 hours 38 minutes a day. Least sunny months in Duclair: January, February and December receive an average of 5 hours 25 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Duclair. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours126199283360408420426387328270208167
Mean daily daylight hours8h 40m10h 7m11h 55m13h 46m15h 22m16h 11m15h 45m14h 19m12h 32m10h 42m9h 4m8h 12m

Solar UV radiation in Duclair, France

Duclair 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 Duclair UV Index data.

Average daily maximum UV levels by month for Duclair. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)234689886421