Affoltern Sunshine Hours by Month

In climate discussions, the hours of sunlight reveal much about a location. This page shows the total number of hours of direct sunlight per month and the average hours per day in Affoltern, Canton of Zurich, Switzerland. This average is based on long-term data collected between 1990 and 2020.

Monthly hours of sunshine

Seasonal sunshine in Affoltern varies. It peaks at 230 hours in July and drops to 48 hours in December. The total annual amount of sun is 1705 hours.

Daily hours of sunshine

In Affoltern, summer days are longer and more sunny, with daily sunshine hours peaking at 7.7 hours in July. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 1.6 hours per day.

Average percent of sunshine

On average the sun shines 53% of the time during the day in July, the highest percentage of any month. December has the lowest percentage at 20%.

Affoltern enjoys an average of 1705 hours of sunshine annually. Let’s compare this with some popular tourist destinations:

Athens, Greece, enjoys 2769 hours of sunshine each year, making it one of the sunniest destinations in the Mediterranean region.

In contrast, Reykjavík, Iceland, receives only about 1330 hours of sunshine per year, known for its frequently overcast and rainy skies.

Boston, USA, enjoys 2629 hours of sunshine annually, with distinct seasons and many bright, sunny days.

Perth, Australia, enjoys 3180 hours of sunshine annually, the highest among major Australian cities.

July, Affoltern’s wettest month, receives 153 mm (6 in) of rainfall and has a maximum daytime temperature of 25°C (77°F). During the driest month January you can expect a temperature of 5°C (41°F).

For more detailed insights into the city’s temperatures, check out our Temperature page. To explore more about precipitation patterns, visit our Affoltern Precipitation page.