Affoltern Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Affoltern.
Climate overview of Affoltern
The climate in Affoltern, Canton of Zurich, Switzerland, is marked by large temperature swings across the seasons, ranging from 25°C (77°F) in July to 5°C (41°F) in January.
Rain/snowfall is high, totalling around 1463 mm (58 in) per year. July is the wettest month and January the driest. The most sunshine falls in July, with an average of 7.7 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
In Affoltern, temperatures differ significantly between summer and winter months. Average maximum daytime temperatures range from a comfortable 25°C (77°F) in July, the warmest time of the year, to a chilly 5°C (41°F) during cooler months like January.
At night, you can expect temperatures ranging from 15°C (59°F) in July to around -1°C (30°F) during January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Affoltern
Affoltern experiences significant rain/snowfall throughout the year, averaging 1463 mm (58 in) of precipitation annually. Year-round, Affoltern has a balanced climate with minimal variation in precipitation. The difference between the wettest month, July, with 153 mm (6 in), and the driest month, January, with 96 mm (3.8 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 7.7 hours, December marks the darkest time of the year, where sunshine is scarce with only 1.6 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 November, reaching 85%. In April, the humidity drops to its lowest level at 67%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Wind Speed in Affoltern
The mean wind speed varies between 2 m/s (4 knots) and 3 m/s (6 knots) throughout the year. It is lowest in January, May, June, July, August, September, October and November and highest during February, March, April and December. What does this mean?
The mean monthly wind speed over the year (meters per second)
Best Time to Visit Affoltern
Frequently asked questions about the climate in Affoltern
What is the best time to visit Affoltern?
May, June, July, August and September typically offer the most optimal weather in Affoltern. In contrast, January, February, March, November and December tend to have less optimal conditions.
What temperatures can I expect in Affoltern?
Daytime highs range from 5°C (41°F) in January to 25°C (77°F) in July. Nighttime lows range from -1°C (30°F) to 15°C (59°F). Temperatures vary considerably through the year.
How much rain does Affoltern get?
Annual rainfall is around 1463 mm (58 in). July is the wettest month with 153 mm (6 in), while January is the driest with 96 mm (3.8 in).
How sunny is Affoltern?
Affoltern receives around 1,705 hours of sunshine per year. July is the sunniest month with 230 hours, while December is the cloudiest with just 48 hours.
Affoltern 3-Day Forecast
Affoltern 3-Day Forecast
Affoltern on the map
Affoltern is highlighted — select any city to see its climate.
Popular this month
Where to go in July — average daytime high across popular destinations.
Zürich
25°C (77°F) Crans-Montana
19°C (66°F) Engelberg19°C (66°F) Nendaz19°C (66°F) Saas-Fee17°C (63°F) Davos17°C (63°F) Grindelwald17°C (63°F) Zermatt15°C (59°F) 
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