Heidelberg Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Heidelberg.
Climate overview of Heidelberg
Heidelberg, Baden-Württemberg, Germany, sees big temperature differences between seasons, with July peaking at 26°C (79°F) and January dropping to 5°C (41°F).
Heidelberg sees a moderate amount of rain/snowfall, totalling around 890 mm (35 in) per year. The most sunshine falls in July, with an average of 7.9 hours of daily sunshine.
Heidelberg Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Heidelberg — and find the best time to visit.
Monthly Temperature in Heidelberg
Visitors to Heidelberg can expect significant temperature changes throughout the year. Average maximum daytime temperatures range from a comfortable 26°C (79°F) in July, the warmest time of the year, to a chilly 5°C (41°F) during cooler months like January.
At night, you can expect temperatures ranging from 15°C (59°F) in July to around -1°C (30°F) during January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Heidelberg
Generally, Heidelberg experiences moderate precipitation patterns, averaging 890 mm (35 in) yearly. While rainfall varies throughout the year, each season offers its own charm. December brings wetter days averaging 95 mm (3.7 in) of precipitation, spread over 15 rainy days.
In contrast, the driest month April experiences a drier climate, with about 57 mm (2.2 in) of rainfall spread across 15 rainy days. For more details, please visit our Heidelberg Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Heidelberg
Seasonal changes in sunshine hours are quite dramatic in Heidelberg. While July receives considerable daily sunshine with up to 7.9 hours, December marks the darkest time of the year, where sunshine is scarce with only 1.5 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Best Time to Visit Heidelberg
The weather does bring rainfall during this period, between 62 mm (2.4 in) and 80 mm (3.1 in). Seeking the perfect travel destination for this year? We've created a tool that suggests locations matching your desired weather. Let our weather planner guide your travel decisions.
Frequently asked questions about the climate in Heidelberg
What is the best time to visit Heidelberg?
May, June, July, August and September typically offer the most optimal weather in Heidelberg. In contrast, January, February, November and December tend to have less optimal conditions.
What temperatures can I expect in Heidelberg?
Daytime highs range from 5°C (41°F) in January to 26°C (79°F) in July. Nighttime lows range from -1°C (30°F) to 15°C (59°F). Temperatures vary considerably through the year.
How much rain does Heidelberg get?
Annual rainfall is around 890 mm (35 in). December is the wettest month with 95 mm (3.7 in), while April is the driest with 57 mm (2.2 in).
How sunny is Heidelberg?
Heidelberg receives around 1,726 hours of sunshine per year. July is the sunniest month with 237 hours, while December is the cloudiest with just 45 hours.
Heidelberg 3-Day Forecast
Heidelberg 3-Day Forecast
Heidelberg on the map
Heidelberg is highlighted — select any city to see its climate.
Popular this month
Where to go in June — average daytime high across popular destinations.
Berlin
23°C (73°F) Düsseldorf22°C (72°F) Hanover22°C (72°F) Munich
23°C (73°F) Cologne23°C (73°F) Hamburg21°C (70°F) Winterberg20°C (68°F) Binz
18°C (64°F) 
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