Climate Insights for Heidenheim an der Brenz

The climate in Heidenheim an der Brenz is cool. The average annual temperature is 9°C and approximately 955mm of precipitation falls per year. Heidenheim an der Brenz receives a notable amount of rainfall throughout the year, including during its driest month. Heidenheim an der Brenz is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, June. The coldest months are January, February, December, when temperatures can drop to -2°C. Snowfall occurs from January to December, with around 93cm accumulating over the season.

Temperatures in Heidenheim an der Brenz vary considerably across the year, with a 26°C difference between the coldest and warmest months. August is the warmest month, though highs remain moderate at 24°C with a mean of 19°C. The coldest month is January, when overnight lows fall to -2°C and the daily average is 0°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 5°C shift in average temperatures.

Heidenheim an der Brenz is a moderately rainy area, receiving approximately 955mm of precipitation annually, which averages out to around 80mm per month. The wettest month is May, averaging 109mm of rainfall. June and January also tend to see above-average precipitation. The driest month is April, with just 56mm. That's 54mm less than May, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around. Snowfall is a regular feature from January to December, with around 93cm accumulating over the season. January typically sees the most snow at around 37cm.

Heidenheim an der Brenz is relatively calm, with an average annual wind speed of 3km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is February, averaging 4km/h, though still comfortable for most outdoor activities. The calmest conditions occur in August, with average winds dropping to 2km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 2km/h gap between the calmest and windiest months.

It is currently spring in Heidenheim an der Brenz, which began on March 20, 2026. Heidenheim an der Brenz 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 August at around 24°C, while the coldest stretch bottoms out in January near -2°C. Summer is next, beginning on June 21, 2026 — 3 days from now.

The best time to visit Heidenheim an der Brenz is during June, July and August, when the weather is most comfortable for travellers. During these months, average temperatures hover around 18°C with modest rainfall averaging 93mm per month. By contrast, January can be quite cold with temperatures dropping to -2°C. Despite being the best months overall, some rain is still likely — pack a waterproof layer and plan a mix of indoor and outdoor activities.

The table below shows monthly climate averages for Heidenheim an der Brenz 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.