ClimateForecastDecemberJanuary >>

Arosa Climate by Month

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 day and 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 averages reaching -12°C in January.

The mean minimum and maximum temperatures throughout the year

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

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.

Monthly hours of sunshine

Data from: Davos Dorf, Switzerland (11 KM, 7 Miles).

Daily hours of sunshine

Data from: Davos Dorf, Switzerland (11 KM, 7 Miles).

The best time of year to visit Arosa in Switzerland

Other facts from our historical weather data:
  • Which months have the greatest rainfall in Arosa?
    Most rainfall (rainy season) is seen in May, June, July and August.
  • Which is the warmest month in Arosa?
    July has an average maximum temperature of 18°C and is the warmest month of the year.
  • Which is the coldest month in Arosa?
    The coldest month is January with an average maximum temperature of -3°C.
  • Which is the wettest month in Arosa?
    June tops the wettest month list with 182 mm of rainfall.
  • Which is the driest month in Arosa?
    February is the driest month with 87 mm of precipitation.
  • Which is the sunniest month in Arosa?
    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.

    Forecast for Arosa

    Thu   Dec 12
    1°C | -4°C
    SE 4 km/h
    clear and no rain

    clear and no rain

    Fri   Dec 13
    1°C | -6°C
    SE 7 km/h
    almost clear and no rain

    almost clear and no rain

    Sat   Dec 14
    5°C | -2°C
    NW 4 km/h
    4.5 mm
    overcast and snow

    overcast and snow