Climate Insights for Glarus

The climate in Glarus is cool. The average annual temperature is 5°C and approximately 2198mm of precipitation falls per year. Glarus receives a notable amount of rainfall throughout the year, including during its driest month. Glarus is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, August, June. The coldest months are January, February, December, when temperatures can drop to -7°C. Glarus experiences heavy snowfall, typically from January through December.

Temperatures in Glarus vary considerably across the year, with a 26°C difference between the coldest and warmest months. July is the warmest month, though highs remain moderate at 19°C with a mean of 15°C. The coldest month is January, when overnight lows fall to -7°C and the daily average is -4°C. Daily temperature variation is modest, with an average difference of 8°C between highs and lows. The sharpest temperature change occurs between October and November, with a 6°C shift in average temperatures.

Glarus is a very wet location, receiving approximately 2198mm of precipitation annually, which averages out to around 183mm per month. The wettest month is August, averaging 261mm of rainfall. July and June also tend to see above-average precipitation. The driest month is February, with just 114mm. That's 147mm less than August, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around. Glarus receives heavy snowfall, accumulating around 491cm annually from January through December. The snowiest month is January, with approximately 105cm. Winter travel should account for significant snow cover.

Glarus is relatively calm, with an average annual wind speed of 7km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is December, averaging 7km/h, though still comfortable for most outdoor activities. The calmest conditions occur in September, with average winds dropping to 6km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 1km/h between the calmest and windiest months.

It is currently spring in Glarus, which began on March 20, 2026. Glarus is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in July at around 19°C, while the coldest stretch bottoms out in January near -7°C. Summer is next, beginning on June 21, 2026 — 89 days from now.

The table below shows monthly climate averages for Glarus based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.