Olten Sunshine Hours by Month

When exploring climate, sunlight hours tell an important story. This page shows the total number of hours of direct sunlight per month and the average hours per day in Olten, Canton of Solothurn, Switzerland. The figures are based on a 30-year period (1990–2020) to provide a reliable average.

Monthly hours of sunshine

If you're visiting Olten, timing is key. In July, you can enjoy up to 237 hours of sunshine, while the shorter days of December provide just 53 hours. The total annual amount of sun is 1701 hours.

Daily hours of sunshine

In Olten, summer days are longer and more sunny, with daily sunshine hours peaking at 7.9 hours in July. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 1.8 hours per day.

Average percent of sunshine

On average the sun shines 55% of the time during the day in August, the highest percentage of any month. December has the lowest percentage at 26%.

Olten enjoys an average of 1701 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.

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

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

July, Olten’s wettest month, receives 159 mm (6.3 in) of rainfall and has a maximum daytime temperature of 25°C (77°F). During the driest month February you can expect a temperature of 7°C (45°F).

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