Best Time to Visit Sarnen, Obwalden, Switzerland
Month-by-month climate guide for planning a trip to Sarnen.
Sarnen does not have a month that clearly fits our sunny profiles. Its practical travel window centres on its warmest (July, 17.2°C / 63°F) and driest (January, 89 mm / 3.5 in) months. The drier stretch runs through September–October and December–April; the wetter half falls in May–August and November. At the city itself, monthly average temperatures range from 0.5°C / 32.9°F in January to 17.2°C / 63°F in July, with rainfall from 89 mm / 3.5 in (January) to 160 mm / 6.3 in (June). These are point-value climate normals sampled at Sarnen, Obwalden, Switzerland's coordinates — usually more actionable for travellers than the country-wide average. Sarnen's climate is broadly seasonal. The full month-by-month table below lets you match your travel window against our five weather profiles.
Recommended months
| Month | Temp | Rain | Feels like |
|---|---|---|---|
| September | 13.6°C56.5°F | 105 mm4.1″ | — |
| October | 9.2°C48.6°F | 104 mm4.1″ | — |
| May | 12.1°C53.8°F | 124 mm4.9″ | — |
No month at Sarnen matches our sunny profiles. The three above are the driest-and-warmest fallback.
Frequently asked questions
When is the best time to visit Sarnen?
Sarnen doesn't have a month that clearly matches our sunny profiles. The practical travel window centres on January (driest, ~89 mm / 3.5 in) and July (warmest, 17.2°C / 63°F). Because these are point values at the city, they can differ substantially from Switzerland's national average.
When is the rainy season in Sarnen?
The rainy season at Sarnen, Obwalden runs through May–August and November, when monthly rainfall exceeds the annual median of about 106 mm / 4.2 in. The wettest single month is June (160 mm / 6.3 in).
What is the driest month in Sarnen?
The driest month in Sarnen is January, averaging about 89 mm / 3.5 in of rainfall. Temperature that month averages 0.5°C / 32.9°F.
What months should I avoid visiting Sarnen?
The least comfortable months for travel to Sarnen — based on point-value climate at the city — are January, February, June, July, August, November, December. These are the wettest or coolest months at this location. Rainfall peaks at 160 mm / 6.3 in in June, and the coldest month averages 0.5°C / 32.9°F.
Is Sarnen climate different from Switzerland overall?
Yes, usually. Our Sarnen figures are point-value climate normals sampled at the city itself, while our Switzerland figures are area-weighted averages across the whole country. The two can diverge substantially in geographically diverse or elevation-varied countries. The month-by-month table below reflects Sarnen specifically — usually the more actionable data for a traveller planning to spend time in the city.