Climate Insights for Heidelberg

The climate in Heidelberg is temperate. The average annual temperature is 17°C and approximately 380 mm of precipitation falls per year. March is the wettest month, receiving around 43 mm of rainfall. Heidelberg is in the Southern Hemisphere. The seasons are reversed: summer runs from December to February, while winter falls between June and August. The summer months are: January, February, December. The coldest months are July, August, June, when temperatures can drop to 6°C.The climate in Heidelberg is temperate. The average annual temperature is 62°F and approximately 14.9 in of precipitation falls per year. March is the wettest month, receiving around 1.7 in of rainfall. Heidelberg is in the Southern Hemisphere. The seasons are reversed: summer runs from December to February, while winter falls between June and August. The summer months are: January, February, December. The coldest months are July, August, June, when temperatures can drop to 43°F.

Temperatures in Heidelberg vary considerably across the year, with a 22°C difference between the coldest and warmest months. The warmest month is January, when average highs reach 28°C and the mean temperature sits around 22°C. July is the coolest month, with minimum temperatures around 6°C and an average of 12°C. On average, daily temperatures fluctuate by about 12°C between overnight lows and afternoon highs. The sharpest temperature change occurs between March and April, with a 3°C shift in average temperatures.Temperatures in Heidelberg vary considerably across the year, with a 39°F difference between the coldest and warmest months. The warmest month is January, when average highs reach 82°F and the mean temperature sits around 71°F. July is the coolest month, with minimum temperatures around 43°F and an average of 53°F. On average, daily temperatures fluctuate by about 22°F between overnight lows and afternoon highs. The sharpest temperature change occurs between March and April, with a 5°F shift in average temperatures.

Heidelberg is a quite dry location, receiving approximately 380 mm of precipitation annually, which averages out to around 32 mm per month. The wettest month is March, averaging 43 mm of rainfall. January and September also tend to see above-average precipitation. The driest month is February, with just 24 mm. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around.Heidelberg is a quite dry location, receiving approximately 14.9 in of precipitation annually, which averages out to around 1.3 in per month. The wettest month is March, averaging 1.7 in of rainfall. January and September also tend to see above-average precipitation. The driest month is February, with just 0.9 in. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around.

Heidelberg is relatively calm, with an average annual wind speed of 10km/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 12km/h, though still comfortable for most outdoor activities. The calmest conditions occur in May, with average winds dropping to 8km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 4km/h gap between the calmest and windiest months.Heidelberg is mildly breezy, with an average annual wind speed of 6mph. For context, sustained winds below 7mph are generally light, while anything above 16mph is considered strong. The windiest month is January, averaging 7mph, though still comfortable for most outdoor activities. The calmest conditions occur in May, with average winds dropping to 5mph, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 2mph gap between the calmest and windiest months.

The best time to visit Heidelberg is during January, February, March, April, October, November and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 19°C with modest rainfall averaging 32 mm per month. By contrast, July can be quite cold with temperatures dropping to 6°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.The best time to visit Heidelberg is during January, February, March, April, October, November and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 67°F with modest rainfall averaging 1.3 in per month. By contrast, July can be quite cold with temperatures dropping to 43°F. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

The table below shows monthly climate averages for Heidelberg 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. 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.The table below shows monthly climate averages for Heidelberg based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Fahrenheit (°F). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in miles per hour (mph). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.