Climate Insights for Altendorf

The climate in Altendorf is cool. The average annual temperature is 6°C and approximately 2075mm of precipitation falls per year. Altendorf receives a notable amount of rainfall throughout the year, including during its driest month. Altendorf 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 -6°C. Altendorf experiences heavy snowfall, typically from January through December.

Temperatures in Altendorf 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 20°C with a mean of 15°C. The coldest month is January, when overnight lows fall to -6°C and the daily average is -3°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 5°C shift in average temperatures.

Altendorf is a very wet location, receiving approximately 2075mm of precipitation annually, which averages out to around 173mm per month. The wettest month is August, averaging 265mm of rainfall. June and July also tend to see above-average precipitation. The driest month is November, with just 103mm. That's 162mm less than August, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall. Altendorf receives heavy snowfall, accumulating around 619cm annually from January through December. The snowiest month is January, with approximately 144cm. Winter travel should account for significant snow cover.

Altendorf is relatively calm, with an average annual wind speed of 1km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is January, averaging 1km/h, though still comfortable for most outdoor activities. The calmest conditions occur in August, with average winds dropping to 1km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 0km/h between the calmest and windiest months.

It is currently summer in Altendorf, which began on June 21, 2026. Altendorf 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 20°C, while the coldest stretch bottoms out in January near -6°C. Autumn is next, beginning on September 23, 2026 — 92 days from now.

The table below shows monthly climate averages for Altendorf 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.