nomadseason

Monthly climate in Viersen, Germany

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Viersen features a oceanic climate (Cfb). Temperatures typically range between 4 °C (39 °F) and 19 °C (67 °F) through the year, but rarely can drop to -10 °C (15 °F) or can rise to as high as 40 °C (104 °F). The average annual precipitation amounts to about 880 mm (34.6 inches) and receives 155 rainy days on the 1 mm (0.04 inches) threshold annually. Viersen enjoys an average of 3327 hours of sunshine throughout the year, and daylight varies from 7 hours 57 minutes to 16 hours 28 minutes per day.

Monthly average temperatures in Viersen, Germany

The warmest months in Viersen are June, July and August, with daily mean temperatures ranging from 19 to 19 °C (66 - 67 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 4 to 5 °C (39 - 42 °F) throughout the day. On average each year, Viersen experiences 35 days above 25 °C (77.0 °F) and 26 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Viersen. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum14°C
(58°F)		20°C
(68°F)		22°C
(73°F)		27°C
(82°F)		33°C
(91°F)		35°C
(96°F)		40°C
(104°F)		37°C
(98°F)		33°C
(92°F)		27°C
(81°F)		20°C
(68°F)		15°C
(60°F)
Mean maximum12°C
(54°F)		16°C
(60°F)		19°C
(66°F)		24°C
(76°F)		28°C
(82°F)		30°C
(86°F)		32°C
(90°F)		32°C
(90°F)		29°C
(84°F)		23°C
(74°F)		17°C
(62°F)		14°C
(57°F)
Average high6°C
(43°F)		8°C
(47°F)		11°C
(52°F)		15°C
(59°F)		19°C
(66°F)		23°C
(75°F)		24°C
(75°F)		24°C
(76°F)		20°C
(69°F)		16°C
(60°F)		10°C
(50°F)		7°C
(45°F)
Daily mean4°C
(39°F)		5°C
(41°F)		7°C
(45°F)		10°C
(51°F)		14°C
(57°F)		19°C
(66°F)		19°C
(67°F)		19°C
(67°F)		16°C
(60°F)		12°C
(54°F)		7°C
(45°F)		5°C
(42°F)
Average low2°C
(36°F)		2°C
(36°F)		3°C
(38°F)		5°C
(42°F)		9°C
(49°F)		14°C
(58°F)		15°C
(59°F)		15°C
(60°F)		11°C
(53°F)		9°C
(49°F)		5°C
(41°F)		3°C
(38°F)
Mean minimum-3°C
(26°F)		-4°C
(25°F)		-3°C
(26°F)		-1°C
(31°F)		3°C
(37°F)		9°C
(49°F)		10°C
(50°F)		9°C
(49°F)		6°C
(42°F)		3°C
(38°F)		-1°C
(30°F)		-3°C
(27°F)
Minimum-7°C
(19°F)		-10°C
(15°F)		-8°C
(18°F)		-2°C
(29°F)		1°C
(34°F)		8°C
(46°F)		8°C
(47°F)		8°C
(46°F)		3°C
(38°F)		2°C
(35°F)		-4°C
(26°F)		-5°C
(24°F)

Compare climate in Viersen with other places

Compare temperature, precipitation, sunshine, UV index in Viersen, Germany with other places around the world.

Monthly average precipitation in Viersen, Germany

Viersen usually has the most precipitation in July, October and December, with an average of 15 rainy days and 97 mm (3.8 inches) of precipitation per month. The driest months in Viersen are April, September and November. On average, 53 mm (2.1 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Viersen. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)70 (2.8)76 (3.0)75 (3.0)39 (1.5)67 (2.6)68 (2.7)93 (3.7)73 (2.9)61 (2.4)97 (3.8)58 (2.3)102 (4.0)
Average precipitation days (≥ 1 mm)12121591311131411141219

Monthly sunshine hours in Viersen, Germany

The sunniest months in Viersen are May, June and July, when the sun shines an average of 12 hours 42 minutes a day. Least sunny months in Viersen: January, November and December receive an average of 4 hours 45 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Viersen. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours117202267333386380402373309234185133
Mean daily daylight hours8h 26m10h 0m11h 55m13h 52m15h 35m16h 28m16h 0m14h 28m12h 34m10h 37m8h 53m7h 57m

Solar UV radiation in Viersen, Germany

Viersen experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 7 - 8, which corresponds to the High / Very High category of sun exposure. January, February 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 Viersen UV Index data.

Average daily maximum UV levels by month for Viersen. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)124578875421