Arosa Weather and Climate: A Comprehensive Guide
Arosa experiences great temperature shifts.
The city's weather can transition from mild days
to very cold weather.
It also has a relatively rain/snowy climate with high levels of precipitation.
Let’s explore the climate details in depth to provide you with a complete overview.
Average maximum day and minimum night temperature
The climate in Arosa is known for significant temperature differences throughout the year, making the weather dynamic. On average, daytime temperatures range from a moderate 18°C in July to a very cold -3°C in January.
Nighttime temperatures can drop, with average lows reaching -12°C in January. Check out our detailed temperature page for more information.Temperature ranges by month
Precipitation and rainy days
Arosa has a notably wet climate with abundant precipitation, recording 1539 mm of rain/snowfall per year. The amount of precipitation varies moderately throughout the year. The wettest month, June, sees around 182 mm of rainfall, perfect for those who enjoy a bit of rain now and then. The driest month, February, still receives a respectable 87 mm of snowfall.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
In Arosa, summer days are longer and more sunny, with daily sunshine hours peaking at 6.3 hours in July. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 3.2 hours per average 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 Arosa.
The city experiences its highest humidity in January, reaching 76%. In April, the humidity drops to its lowest level at 71%. 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 1 m/s and 3 m/s throughout the year. It is lowest in January, February and December and highest during July.
The mean monthly wind speed over the year (meters per second)
broken clouds and small chance of snow almost clear and no rain clear and no rainForecast for Arosa
1 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 Arosa in Switzerland
Other facts from our historical weather data:Most rainfall (rainy season) is seen in May, June, July and August.
July has an average maximum temperature of 18°C and is the warmest month of the year.
The coldest month is January with an average maximum temperature of -3°C.
June tops the wettest month list with 182 mm of rainfall.
February is the driest month with 87 mm of precipitation.
July is the sunniest month with an average of 188 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.
