August · Germany
Best time to visit Heidelberg in August Weather, crowds & prices
Weather in Heidelberg in August
Average temperature 22°C, 80 mm of rain, about 28 days with 6+ hours of sunshine and 67% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
August score
8.7/10
Ranked #3 of 12 months
- Avg temp
- 22°C
- Rainfall
- 80 mm
- Humidity
- 67%
- Days with 6h+ sun
- 28
- Crowd Density
- Peak Tourist Rush
- Average Expenses
- $$$ · Peak Season Rates ($$$)
August in Heidelberg scores 8.7/10 for sightseeing and cultural travel - one of the top 12-month picks (#3). Expect around 22°C, 80 mm of rain, and roughly 28 days with 6+ hours of sunshine this month.
Castle ruins look over the Neckar in Heidelberg, with the Old Bridge and Philosophers' Walk close by.
August is one of the strongest months in Heidelberg (3rd)
At 22°C (71°F) this is comfortable city weather in August, with sightseeing easiest before lunch and after the afternoon peak.
Budget for roughly 80 mm of rain this month — a flexible day or two helps — with about 28 days with 6+ hours of sunshine and 14.4 hours of daylight to work around it.
On our climate-comfort scale this is one of the strongest months of the year for Heidelberg at 8.7/10 (3rd of 12), just behind June at 9.1/10.
Pack light clothing, a hat and real sun protection, a packable rain layer.
Expect peak pricing, and this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Frequently asked
- What is the weather like in Heidelberg in August?
- In August, Heidelberg averages 22°C, 80 mm of rain, and about 28 days with 6+ hours of sunshine. Its climate-comfort score is 8.7/10.
- Is August a good time to visit Heidelberg?
- August earns a 8.7/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Heidelberg in August?
- Expect about 80 mm of rain in August. Average humidity is 67% and there are about 28 days with 6+ hours of sunshine.
Curated in Heidelberg
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Things to do in Heidelberg
Heidelberg, Germany. Live activities and tours from GetYourGuide, matched to this destination.