Altdorf Weather and Climate: A Comprehensive Guide
The temperature in Altdorf can vary quite a bit throughout the year.
Temperatures can be pleasant during the warmest months,
and very cold during the cooler months.
It also has a notably wet climate with much precipitation.
Now, let’s break down all the climate details for a clearer picture.
Average maximum day and minimum night temperature
Visitors to Altdorf can expect significant temperature changes throughout the year. Average maximum daytime temperatures range from a pleasant 19°C in July, the warmest time of the year, to a very cold -1°C during cooler months like January.
At night, temperatures typically drop to an average of around -8°C during these months. Check out our detailed temperature page for more information.Temperature ranges by month
Precipitation and rainy days
Altdorf is known for its substantial rain/snowfall, with annual precipitation reaching 1990 mm. While rainfall varies throughout the year, each season offers its own charm. August brings wetter days averaging 231 mm of precipitation, spread over 19 rainy days. In contrast, February experiences a drier climate, with about 125 mm of snowfall spread across 15 snowy days.The mean monthly precipitation over the year, including rain, hail and snow
The average number of days each month with precipitation
Sunshine over the year
Seasonal changes in sunshine hours are quite dramatic in Altdorf. 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
Average humidity
The relative humidity is high throughout the year in Altdorf.
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
Average wind speed
The mean wind speed varies between 2 m/s and 3 m/s throughout the year. It is lowest in January, February, March, May, June, July, August, September, October, November and December and highest during April.
The mean monthly wind speed over the year (meters per second)
overcast and chance of slight snow broken clouds and no rain almost clear and no rainForecast for Altdorf
3 m/s
2 m/s
2 m/s
Select a Month of Interest
Check the conditions for any month of the year.
The best time of year to visit Altdorf in Switzerland
Other facts from our historical weather data:Rainy season in Altdorf occurs in the months of May, June, July, August, September and November.
The coldest season / winter is in the following months: January, February and December.
July has an average maximum temperature of 19°C and is the warmest month of the year.
The coldest month is January with an average maximum temperature of -1°C.
August tops the wettest month list with 231 mm of rainfall.
February is the driest month with 125 mm of precipitation.
July is the sunniest month with an average of 168 hours of sunshine.
No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.
