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Monthly climate in Calw, Germany

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Calw features a oceanic climate (Cfb). Temperatures typically range between 1 °C (34 °F) and 19 °C (66 °F) through the year, but rarely can drop to -21 °C (-6 °F) or can rise to as high as 34 °C (94 °F). The average annual precipitation amounts to about 1105 mm (43.5 inches) and receives 162 rainy days on the 1 mm (0.04 inches) threshold annually. Calw enjoys an average of 3442 hours of sunshine throughout the year, and daylight varies from 8 hours 18 minutes to 16 hours 5 minutes per day.

Monthly average temperatures in Calw, Germany

The warmest months in Calw are June, July and August, with daily mean temperatures ranging from 18 to 19 °C (65 - 66 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 1 to 3 °C (34 - 38 °F) throughout the day. On average each year, Calw experiences 33 days above 25 °C (77.0 °F) and 67 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Calw. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum13°C
(56°F)		19°C
(67°F)		22°C
(71°F)		26°C
(79°F)		29°C
(85°F)		33°C
(91°F)		34°C
(94°F)		34°C
(93°F)		29°C
(84°F)		24°C
(76°F)		21°C
(70°F)		13°C
(56°F)
Mean maximum11°C
(52°F)		15°C
(60°F)		18°C
(65°F)		23°C
(74°F)		26°C
(80°F)		28°C
(83°F)		31°C
(87°F)		31°C
(87°F)		27°C
(80°F)		22°C
(72°F)		17°C
(63°F)		12°C
(54°F)
Average high3°C
(38°F)		7°C
(44°F)		10°C
(50°F)		14°C
(58°F)		17°C
(64°F)		23°C
(73°F)		24°C
(75°F)		24°C
(75°F)		20°C
(67°F)		15°C
(59°F)		8°C
(46°F)		5°C
(41°F)
Daily mean1°C
(34°F)		3°C
(38°F)		5°C
(42°F)		9°C
(49°F)		13°C
(55°F)		18°C
(65°F)		19°C
(66°F)		19°C
(66°F)		14°C
(58°F)		10°C
(51°F)		5°C
(41°F)		3°C
(37°F)
Average low-2°C
(29°F)		-0°C
(32°F)		1°C
(34°F)		4°C
(39°F)		8°C
(46°F)		13°C
(55°F)		14°C
(57°F)		14°C
(57°F)		10°C
(50°F)		7°C
(45°F)		2°C
(36°F)		1°C
(34°F)
Mean minimum-9°C
(17°F)		-9°C
(16°F)		-6°C
(21°F)		-3°C
(27°F)		1°C
(34°F)		6°C
(43°F)		9°C
(49°F)		8°C
(46°F)		3°C
(38°F)		1°C
(34°F)		-3°C
(26°F)		-6°C
(21°F)
Minimum-21°C
(-6°F)		-18°C
(1°F)		-19°C
(-2°F)		-5°C
(24°F)		-1°C
(31°F)		5°C
(41°F)		8°C
(46°F)		5°C
(42°F)		1°C
(34°F)		-1°C
(30°F)		-4°C
(25°F)		-10°C
(15°F)

Compare climate in Calw with other places

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

Monthly average precipitation in Calw, Germany

Calw usually has the most precipitation in May, June and December, with an average of 16 rainy days and 116 mm (4.6 inches) of precipitation per month. The driest months in Calw are April, September and November. On average, 60 mm (2.3 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Calw. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)92 (3.6)83 (3.3)99 (3.9)52 (2.0)112 (4.4)114 (4.5)107 (4.2)111 (4.4)65 (2.6)86 (3.4)62 (2.4)123 (4.8)
Average precipitation days (≥ 1 mm)13111591614141612131118

Monthly sunshine hours in Calw, Germany

The sunniest months in Calw are May, June and July, when the sun shines an average of 12 hours 50 minutes a day. Least sunny months in Calw: January, November and December receive an average of 5 hours 8 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Calw. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours131205278346381389410377317263194146
Mean daily daylight hours8h 45m10h 10m11h 55m13h 43m15h 17m16h 5m15h 39m14h 16m12h 32m10h 44m9h 9m8h 18m

Solar UV radiation in Calw, Germany

Calw 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 Calw UV Index data.

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