Calw Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Calw.
Climate overview of Calw
Calw, Baden-Württemberg, Germany, experiences significant temperature variation throughout the year. Summers bring daytime highs of 24°C (75°F) in July, while winters cool to 4°C (39°F) in January.
The city has a wet climate, receiving around 1177 mm (46 in) of rain/snowfall per year. Despite the high annual total, it has warm summers and cold winters. July is the wettest month. The most sunshine falls in July, with an average of 7.8 hours of daily sunshine.
Calw Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Calw - and find the best time to visit.
Monthly Temperature in Calw
Depending on the time of the year, temperatures range from comfortable to chilly in Calw. On average, daytime temperatures range from a comfortable 24°C (75°F) in July to a chilly 4°C (39°F) in January.
Nighttime temperatures range from 14°C (57°F) in July to -2°C (28°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Calw
Calw has a relatively rain/snowy climate with high precipitation levels, averaging 1177 mm (46 in) of rain/snowfall annually. The wettest period in Calw occurs in July, which receives around 121 mm (4.8 in) of precipitation. During the driest month, April, Calw experiences moderate rainfall, totaling 81 mm (3.2 in). The consistent precipitation levels throughout the year contribute to a relatively stable climate. For more details, please visit our Calw Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Calw
In Calw, summer days are longer and more sunny, with daily sunshine hours peaking at 7.8 hours in July. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 2.0 hours per average day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Best Time to Visit Calw
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: September
- Warmest weather: July and August
- Most sunshine: July and August
- Seasonal pattern: Warm summers and cold winters
- Coldest conditions: January, with freezing nights around -2°C (28°F).
Frequently asked questions about the climate in Calw
What is the best time to visit Calw?
September typically offers the most optimal weather in Calw. In contrast, January, February, March, November and December tend to have less optimal conditions. Calw has warm summers and cold winters.
What temperatures can I expect in Calw?
Daytime highs range from 4°C (39°F) in January to 24°C (75°F) in July. Nighttime lows range from -2°C (28°F) to 14°C (57°F). Temperatures vary considerably through the year.
How much rain does Calw get?
Annual rainfall is around 1177 mm (46 in). July is the wettest month with 121 mm (4.8 in), while April is the driest with 81 mm (3.2 in).
How sunny is Calw?
Calw receives around 1,816 hours of sunshine per year. July is the sunniest month with 235 hours, while December is the cloudiest with just 61 hours.
Calw 3-Day Forecast
Calw on the map
Calw is highlighted - select any city to see its climate.
Popular this month
Where to go in August - average daytime high across popular destinations.
Berlin
26°C (79°F) Düsseldorf24°C (75°F) Hanover24°C (75°F) Munich25°C (77°F) Cologne25°C (77°F) Hamburg24°C (75°F) Winterberg
22°C (72°F) Binz
21°C (70°F) 
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