Wetzlar Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Wetzlar.
Climate overview of Wetzlar
The climate in Wetzlar, Hessen, Germany, is marked by large temperature swings across the seasons, ranging from 24°C (75°F) in July to 5°C (41°F) in January.
The city receives around 824 mm (32 in) of rain/snowfall per year. It experiences warm summers and cold winters. December is the wettest month and April the driest. Sunshine peaks in July, when the city sees around 7.8 hours of sunshine per day.
Wetzlar Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Wetzlar - and find the best time to visit.
Monthly Temperature in Wetzlar
In Wetzlar, temperatures differ significantly between summer and winter months. On average, daytime temperatures range from a comfortable 24°C (75°F) in July to a chilly 5°C (41°F) in January.
Nighttime temperatures range from 14°C (57°F) in July to -1°C (30°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Wetzlar
On average, Wetzlar receives a reasonable amount of rain/snowfall, with an annual precipitation of 824 mm (32 in). The wettest period in Wetzlar occurs in December, which receives around 80 mm (3.1 in) of precipitation. During the driest month, April, Wetzlar experiences moderate rainfall, totaling 57 mm (2.2 in). The consistent precipitation levels throughout the year contribute to a relatively stable climate. For more details, please visit our Wetzlar 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 Wetzlar
In Wetzlar, 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 1.5 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
Humidity in Wetzlar by Month
The relative humidity is high throughout the year in Wetzlar.
The city experiences its highest humidity in December, reaching 88%. In May, the humidity drops to its lowest level at 66%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Wetzlar
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: June, July, August and September
- Warmest weather: July and August
- Most sunshine: July
- Seasonal pattern: Warm summers and cold winters
- Coldest conditions: January, with freezing nights around -1°C (30°F).
Frequently asked questions about the climate in Wetzlar
What is the best time to visit Wetzlar?
June, July, August and September typically offer the most optimal weather in Wetzlar. In contrast, January, February, March, November and December tend to have less optimal conditions. Wetzlar has warm summers and cold winters.
What temperatures can I expect in Wetzlar?
Daytime highs range from 5°C (41°F) in January to 24°C (75°F) in July. Nighttime lows range from -1°C (30°F) to 14°C (57°F). Temperatures vary considerably through the year.
How much rain does Wetzlar get?
Annual rainfall is around 824 mm (32 in). December is the wettest month with 80 mm (3.1 in), while April is the driest with 57 mm (2.2 in). In the coldest months, precipitation may fall as snow/rain.
How sunny is Wetzlar?
Wetzlar receives around 1,670 hours of sunshine per year. July is the sunniest month with 235 hours, while December is the cloudiest with just 44 hours.
Wetzlar 3-Day Forecast
Wetzlar on the map
Wetzlar 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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