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Sierre Weather and Climate: A Comprehensive Guide

Sierre experiences great temperature shifts. The city's weather can transition from pleasant days to very cold weather. It also has a relatively rain/snowy climate with high levels of precipitation. Now, let’s explore all the climate details to give you a full picture.

Average maximum day and minimum night temperature

The climate in Sierre is known for significant temperature differences throughout the year, making the weather dynamic. On average, daytime temperatures range from a pleasant 19°C in July to a very cold -4°C in January.

Nighttime temperatures can drop, with average lows reaching -13°C in January. Check out our detailed temperature page for more information.

Temperature ranges by month

Precipitation and rainy days

Sierre has a notably wet climate with abundant precipitation, recording 1568 mm of rain/snowfall per year. The wettest period in Sierre occurs in June, which receives around 153 mm of precipitation. During the driest month, October, Sierre experiences high rainfall, totaling approximately 112 mm. The consistent precipitation levels throughout the year contribute to a relatively stable climate.

The mean monthly precipitation over the year, including rain, hail and snow

Sunshine over the year

In Sierre, summer days are longer and more sunny, with daily sunshine hours peaking at 9.0 hours in July. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 2.3 hours per average day. Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Data from: Sion, Switzerland (17 KM, 10 Miles).

Daily hours of sunshine

Data from: Sion, Switzerland (17 KM, 10 Miles).

Forecast for Sierre

Wed   Jan 15
5°C | -4°C
NW 2 m/s
almost clear and no rain

almost clear and no rain

Thu   Jan 16
4°C | -5°C
NE 2 m/s
clear and no rain

clear and no rain

Fri   Jan 17
4°C | -5°C
NE 2 m/s
clear and no rain

clear and no rain

Select a Month of Interest

Check the conditions for any month of the year.

The best time of year to visit Sierre in Switzerland

Other facts from our historical weather data:
  • Which months have the greatest rainfall in Sierre?
    Most rainfall (rainy season) is seen in May and June.
  • When is winter in Sierre?
    The coldest season / winter is in the following months: January, February, November and December.
  • Which is the warmest month in Sierre?
    July has an average maximum temperature of 19°C and is the warmest month of the year.
  • Which is the coldest month in Sierre?
    The coldest month is January with an average maximum temperature of -4°C.
  • Which is the wettest month in Sierre?
    June tops the wettest month list with 153 mm of rainfall.
  • Which is the driest month in Sierre?
    October is the driest month with 112 mm of precipitation.
  • Which is the sunniest month in Sierre?
    July is the sunniest month with an average of 270 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.