Climate Insights for Courmayeur

The climate in Courmayeur is cool. The average annual temperature is 3°C and approximately 1601mm of precipitation falls per year. Courmayeur receives a notable amount of rainfall throughout the year, including during its driest month. Courmayeur 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, December, February, when temperatures can drop to -11°C. Courmayeur experiences heavy snowfall, typically from January through December.

Temperatures in Courmayeur vary considerably across the year, with a 30°C difference between the coldest and warmest months. July is the warmest month, though highs remain moderate at 19°C with a mean of 14°C. The coldest month is January, when overnight lows fall to -11°C and the daily average is -8°C. On average, daily temperatures fluctuate by about 9°C between overnight lows and afternoon highs. The sharpest temperature change occurs between October and November, with a 7°C shift in average temperatures.

Courmayeur is a fairly wet location, receiving approximately 1601mm of precipitation annually, which averages out to around 133mm per month. The wettest month is December, averaging 205mm of rainfall. January and May also tend to see above-average precipitation. The driest month is July, with just 95mm. That's 110mm less than December, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around. Courmayeur receives heavy snowfall, accumulating around 638cm annually from January through December. The snowiest month is December, with approximately 131cm. Winter travel should account for significant snow cover.

Courmayeur 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 July, averaging 8km/h, though still comfortable for most outdoor activities. The calmest conditions occur in May, with average winds dropping to 7km/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 Courmayeur, which began on March 20, 2026. Courmayeur 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 -11°C. Summer is next, beginning on June 21, 2026 — 87 days from now.

The table below shows monthly climate averages for Courmayeur 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.