April · Germany
Best time to visit Heidelberg in April Weather, crowds & prices
Weather in Heidelberg in April
Average temperature 10°C, 94 mm of rain, about 23 days with 6+ hours of sunshine and 72% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
April score
7.4/10
Ranked #6 of 12 months
- Avg temp
- 10°C
- Rainfall
- 94 mm
- Humidity
- 72%
- Days with 6h+ sun
- 23
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$ · Moderate Cost ($$)
April in Heidelberg scores 7.4/10 for sightseeing and cultural travel - an above-average month (#6 of 12). Expect around 10°C, 94 mm of rain, and roughly 23 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.
April holds up well in Heidelberg — 6th best month
April averages 10°C (49°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.
Rainfall runs 94 mm, so plan one flexible day in three; you still get about 23 days with 6+ hours of sunshine and 13.8 hours of daylight.
It scores 7.4/10 here, 6th of 12 months, against 9.1/10 in the destination's best month.
Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in, a packable rain layer.
Figure on mid-season pricing, with crowds are moderate.
Flexible dates? June scores 1.7 points higher here — enough to change the trip.
Frequently asked
- What is the weather like in Heidelberg in April?
- In April, Heidelberg averages 10°C, 94 mm of rain, and about 23 days with 6+ hours of sunshine. Its climate-comfort score is 7.4/10.
- Is April a good time to visit Heidelberg?
- April earns a 7.4/10 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 April?
- Expect about 94 mm of rain in April. Average humidity is 72% and there are about 23 days with 6+ hours of sunshine.
Curated in Heidelberg
Tickets & experiences
Things to do in Heidelberg
Heidelberg, Germany. Live activities and tours from GetYourGuide, matched to this destination.