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Wassen Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Wassen.
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Climate overview of Wassen
Wassen, Uri, Switzerland, sees big temperature differences between seasons, with July peaking at 17°C (63°F) and January dropping to -4°C (25°F).
Rain/snowfall is high, totalling around 1964 mm (77 in) per year. August is the wettest month and February the driest. The city also experiences a distinct rainy season from June to September, with mild summers and very cold winters. The most sunshine falls in July, with an average of 5.6 hours of daily sunshine.
Wassen Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Wassen - and find the best time to visit.
Monthly Temperature in Wassen
Visitors to Wassen can expect significant temperature changes throughout the year. Average maximum daytime temperatures range from a moderate 17°C (63°F) in July, the warmest time of the year, to a very cold -4°C (25°F) during cooler months like January.
At night, you can expect temperatures ranging from 7°C (45°F) in July to around -11°C (12°F) during January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Wassen
Wassen is known for its substantial rain/snowfall, with annual precipitation reaching 1964 mm (77 in). While rainfall varies throughout the year, each season offers its own charm. August brings wetter days averaging 235 mm (9.3 in) of precipitation, spread over 19 rainy days.
In contrast, the driest month February experiences a drier climate, with about 116 mm (4.6 in) of snowfall spread across 16 snowy days. For more details, please visit our Wassen Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Wassen
Seasonal changes in sunshine hours are quite dramatic in Wassen. 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
Data from: Altdorf, Switzerland (18 KM, 11 Miles).
Daily hours of sunshine
Data from: Altdorf, Switzerland (18 KM, 11 Miles).
Daily percentage of sunshine
Data from: Altdorf, Switzerland (18 KM, 11 Miles).
Humidity in Wassen by Month
The relative humidity is high throughout the year in Wassen.
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
Data from: Altdorf, Switzerland (18 KM, 11 Miles).
Wind Speed in Wassen
The average wind speed over the year ranges from 2 m/s (4 knots) to 3 m/s (6 knots). It is lower in January, February, March, May, June, July, August, September, October, November and December and higher in April. What does this mean?
The mean monthly wind speed over the year (meters per second)
Data from: Altdorf, Switzerland (18 KM, 11 Miles).
Best Time to Visit Wassen
Weather conditions in Wassen vary little from month to month, so there is no clear best period based on weather alone.
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
Jan
very cold
Feb
very cold
Mar
cold
Apr
wet
May
wet
Jun
very wet
Jul
very wet
Aug
very wet
Sep
wet
Oct
wet
Nov
cold
Dec
very cold
- Warmest weather: July and August
- Most sunshine: June and July
- Seasonal pattern: A distinct rainy season from June to September, with mild summers and very cold winters
- Coldest conditions: January, with freezing nights around -11°C (12°F).
Frequently asked questions about the climate in Wassen
What is the best time to visit Wassen?
Wassen has a distinct rainy season from June to September, with mild summers and very cold winters.
What temperatures can I expect in Wassen?
Daytime highs range from -4°C (25°F) in January to 17°C (63°F) in July. Nighttime lows range from -11°C (12°F) to 7°C (45°F). Temperatures vary considerably through the year.
How much rain does Wassen get?
Annual rainfall is around 1964 mm (77 in). August is the wettest month with 235 mm (9.3 in), while February is the driest with 116 mm (4.6 in).
How sunny is Wassen?
Wassen receives around 1,385 hours of sunshine per year. July is the sunniest month with 168 hours, while December is the cloudiest with just 36 hours.
Wassen 3-Day Forecast
Wassen on the map
Wassen is highlighted - select any city to see its climate.
Popular in September
Where to go in September - average daytime high across popular destinations.
Zürich
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15°C (59°F) Nendaz15°C (59°F) Saas-Fee12°C (54°F) Davos13°C (55°F) Grindelwald13°C (55°F) Zermatt11°C (52°F) Bucket list
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