Sarnen Weather & Climate: Best Time to Visit

Depending on the time of the year, temperatures range from pleasant to very cold in Sarnen. Average maximum daytime temperatures range from a pleasant 20°C (68°F) in July, the warmest time of the year, to a very cold 1°C (34°F) during cooler months like January.

At night, you can expect temperatures ranging from 11°C (52°F) in July to around -5°C (23°F) during January.

Check out our detailed temperature page for more information.

Temperature ranges by month

Sarnen has a relatively rain/snowy climate with high precipitation levels, averaging 1998 mm (79 in) of rain/snowfall annually. While rainfall varies throughout the year, each season offers its own charm. August brings wetter days averaging 231 mm (9.1 in) of precipitation, spread over 18 rainy days.

In contrast, the driest month January experiences a drier climate, with about 125 mm (4.9 in) of snow/rainfall spread across 15 snowy/rainy days. For more details, please visit our Sarnen Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

The average number of days each month with precipitation

Seasonal changes in sunshine hours are quite dramatic in Sarnen. While July receives considerable daily sunshine with up to 5.6 hours, December marks the darkest time of the year, where sunshine is scarce with only 1.2 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

The relative humidity is high throughout the year in Sarnen.

The city experiences its highest humidity in December, reaching 80%. In April, the humidity drops to its lowest level at 66%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year