Affoltern (BERN) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Affoltern.
Climate overview of Affoltern
Affoltern, Canton of Bern, Switzerland, sees big temperature differences between seasons, with July peaking at 24°C (75°F) and January dropping to 4°C (39°F).
Rain/snowfall is high, totalling around 1393 mm (55 in) per year. June is the wettest month and February the driest. The city also experiences warm summers and cold winters. The most sunshine falls in July, with an average of 8.1 hours of daily sunshine.
Affoltern Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Affoltern - and find the best time to visit.
Monthly Temperature in Affoltern
Visitors to Affoltern can expect significant temperature changes throughout the year. Average maximum daytime temperatures range from a comfortable 24°C (75°F) in July, the warmest time of the year, to a chilly 4°C (39°F) during cooler months like January.
At night, you can expect temperatures ranging from 13°C (55°F) in July to around -2°C (28°F) during January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Affoltern
Affoltern is known for its substantial rain/snowfall, with annual precipitation reaching 1393 mm (55 in). Year-round, Affoltern has a balanced climate with minimal variation in precipitation. The difference between the wettest month, June, with 147 mm (5.8 in), and the driest month, February, with 92 mm (3.6 in), is minimal. For more details, please visit our Affoltern 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 Affoltern
Seasonal changes in sunshine hours are quite dramatic in Affoltern. While July receives considerable daily sunshine with up to 8.1 hours, December marks the darkest time of the year, where sunshine is scarce with only 1.8 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Humidity in Affoltern by Month
The relative humidity is high throughout the year in Affoltern.
The city experiences its highest humidity in October, reaching 85%. In April, the humidity drops to its lowest level at 71%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Affoltern
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 and August
- Warmest weather: July and August
- Most sunshine: July
- 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 Affoltern
What is the best time to visit Affoltern?
June, July and August typically offer the most optimal weather in Affoltern. In contrast, January, February, November and December tend to have less optimal conditions. Affoltern has warm summers and cold winters.
What temperatures can I expect in Affoltern?
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 13°C (55°F). Temperatures vary considerably through the year.
How much rain does Affoltern get?
Annual rainfall is around 1393 mm (55 in). June is the wettest month with 147 mm (5.8 in), while February is the driest with 92 mm (3.6 in).
How sunny is Affoltern?
Affoltern receives around 1,792 hours of sunshine per year. July is the sunniest month with 244 hours, while December is the cloudiest with just 54 hours.
Affoltern 3-Day Forecast
Affoltern on the map
Affoltern is highlighted - select any city to see its climate.
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