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Altena Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Altena.
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Climate overview of Altena
Altena, North Rhine-Westphalia, Germany, sees big temperature differences between seasons, with July peaking at 23°C (73°F) and January dropping to 5°C (41°F).
The city receives considerable rain/snowfall, with around 1160 mm (46 in) annually. December is the wettest month. It has warm summers and cold winters. The sunniest month is May, with 7.9 hours of sunshine per day on average.
Altena Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Altena - and find the best time to visit.
Monthly Temperature in Altena
Visitors to Altena can expect significant temperature changes throughout the year. Typically, average maximum daytime temperatures range from a comfortable 23°C (73°F) in July to a chilly 5°C (41°F) in the coolest month, January.
Nights vary from 13°C (55°F) in July to around -1°C (30°F) during the colder months.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Altena
Altena is known for its substantial rain/snowfall, with annual precipitation reaching 1160 mm (46 in). Precipitation levels in Altena remain relatively steady throughout the year. December has the most rain, with 111 mm (4.4 in) over 18 days. In the driest month April, this drops slightly to 74 mm (2.9 in), making the city's climate fairly predictable. For more details, please visit our Altena 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 Altena
For those who appreciate different seasons, Altena serves as an ideal destination. Expect longer, more sun-filled days in May with an average of 7.9 hours of sunshine daily, and embrace the darker days in January, offering only 1.3 hours of daily sunlight.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Data from: Bochum, Germany (37 KM, 23 Miles).
Daily hours of sunshine
Data from: Bochum, Germany (37 KM, 23 Miles).
Best Time to Visit Altena
The most comfortable overall weather for exploring Altena is usually found in June. Conditions are generally least comfortable in January, February, March, November and December.
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
Jan
wet
Feb
cold
Mar
cold
Apr
good
May
very good
Jun
excellent
Jul
very good
Aug
very good
Sep
very good
Oct
good
Nov
cold
Dec
wet
- Best overall: June
- Warmest weather: July and August
- Most sunshine: May
- 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 Altena
What is the best time to visit Altena?
June typically offers the most optimal weather in Altena. In contrast, January, February, March, November and December tend to have less optimal conditions. Altena has warm summers and cold winters.
What temperatures can I expect in Altena?
Daytime highs range from 5°C (41°F) in January to 23°C (73°F) in July. Nighttime lows range from -1°C (30°F) to 13°C (55°F). Temperatures vary considerably through the year.
How much rain does Altena get?
Annual rainfall is around 1160 mm (46 in). December is the wettest month with 111 mm (4.4 in), while April is the driest with 74 mm (2.9 in).
How sunny is Altena?
Altena receives around 1,701 hours of sunshine per year. May is the sunniest month with 236 hours, while January is the cloudiest with just 40 hours.
Altena 3-Day Forecast
Altena on the map
Altena is highlighted - select any city to see its climate.
Popular in September
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