Herisau Sunshine Hours by Month

Sunshine is key to understanding how a place experiences its seasons. This page shows the total number of hours of direct sunlight per month and the average hours per day in Herisau, St.Gallen Canton, Switzerland. These values are calculated using 30 years of data (1990–2020) to ensure accuracy.

Monthly hours of sunshine

Seasonal sunshine in Herisau varies. It peaks at 229 hours in July and drops to 48 hours in December. The total annual amount of sun is 1632 hours.

Daily hours of sunshine

In Herisau, summer days are longer and more sunny, with daily sunshine hours peaking at 7.6 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 50% of the time during the day in August, the highest percentage of any month. January has the lowest percentage at 22%.

Herisau enjoys an average of 1632 hours of sunshine annually. Let’s compare this with some popular tourist destinations:

In Barcelona, Spain, there are 2530 hours of sunshine annually and is a city that can be visited year-round.

In contrast, Tromsø , Norway, receives only about 1270 hours of sunshine per year, known for the polar night with no sunlight for weeks during winter.

In Chicago, USA, the annual sunshine averages 2520 hours, contributing to its humid continental climate.

Adelaide, Australia, enjoys 2770 hours of sunshine annually, with long, sunny summers.

June, Herisau’s wettest month, receives 211 mm (8.3 in) of rainfall and has a maximum daytime temperature of 21°C (70°F). During the driest month January you can expect a temperature of 4°C (39°F).

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