Lake Sarnen
Lake Alpine lake near Sarnen with scenic mountain surroundings
Lake Sarnen in Obwalden lies beneath alpine ridges and is framed by the town of Sarnen; visitors use it for swimming, sailing and hikes into nearby mountain trails.
Lake Sarnen (Sarnersee) is a small lake in the canton of Obwalden in central Switzerland, located beside the town of Sarnen. It is a locally important recreational lake set within a compact alpine foothill landscape.
Shoreline paths and promenades near the town allow walking and cycling; local operators run short passenger boats and small-boat rentals in season. Mountains and hills rise close to the lake, giving readily accessible viewpoints within a few kilometers of the shore.
The lake is of postglacial origin and has long been used by nearby communities for fishing and transport on a local scale. Modern amenities along the shore developed in the 19th and 20th centuries as Sarnen grew as a regional centre.
Geographically it lies in central Switzerland, immediately adjacent to the town of Sarnen in Obwalden, roughly in the Lucerne-Interlaken part of the country. The surrounding landscape is a mix of lakeshore settlements, farmland and low alpine hills.
- Access: Sarnen town sits at the northern end of the lake and provides the main access points, including lakeside promenades and boat landings.
- Viewing tips: Best light for photos is generally in the morning or late afternoon when low sun highlights the surrounding foothills.
How to Get to Lake Sarnen #
SBB trains run to Sarnen station from Lucerne (about 30 minutes) and from Interlaken direction via Luzern connections. The station is a 10-15 minute walk to the lakeside promenade. Driving: follow A8 and local roads into Sarnen; parking is available near the center.
Tips for Visiting Lake Sarnen #
- Take the short walk up to Sarnen's town center for a clockwise view of the lake - the train station is only a 10-15 minute walk.
- Rent a bike to follow the lakeside paths; the route to Giswil has fine views of the lake and the mountains beyond.
- Visit on a weekday morning for mirror-like water and fewer day-trippers from Lucerne.
Best Time to Visit Lake Sarnen #
Summer and early autumn are best for activities and views; winter is quiet and atmospheric but conditions can be icy.
Weather & Climate near Lake Sarnen #
Lake Sarnen's climate is classified as Oceanic - Oceanic climate with mild summers (peaking in July) and cold winters (coldest in January). Temperatures range from -2°C to 24°C. Abundant rainfall (1337 mm/year), wettest in June.
January
January is the coolest month with highs of 4°C and lows of -2°C. Regular rainfall (85 mm) and partly cloudy skies.
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February
February is cold with highs of 6°C and lows of -2°C. Regular rainfall (93 mm) and partly cloudy skies.
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March
March is cold with highs of 10°C and lows of 1°C. Regular rainfall (95 mm) and partly cloudy skies.
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April
April is cold with highs of 14°C and lows of 4°C. Significant rainfall (102 mm) and mostly overcast skies.
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May
May is cool with highs of 19°C and lows of 8°C. Significant rainfall (121 mm) and mostly overcast skies.
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June
June is cool with highs of 21°C and lows of 11°C. The wettest month with heavy rain (152 mm) and mostly overcast skies.
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July
July is the warmest month with highs of 24°C and lows of 13°C. Significant rainfall (147 mm) and partly cloudy skies.
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August
August is mild with highs of 23°C and lows of 13°C. Significant rainfall (150 mm) and partly cloudy skies.
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September
September is cool with highs of 20°C and lows of 10°C. Regular rainfall (99 mm) and partly cloudy skies.
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October
October is cool with highs of 14°C and lows of 6°C. Regular rainfall (98 mm) and partly cloudy skies.
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November
November is cold with highs of 8°C and lows of 1°C. Significant rainfall (102 mm) and partly cloudy skies.
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December
December is cold with highs of 4°C and lows of -1°C. Regular rainfall (93 mm) and partly cloudy skies.