December · Germany
Best time to visit Heidelberg in December Weather, crowds & prices
Weather in Heidelberg in December
Average temperature 4°C, 89 mm of rain, about 5 days with 6+ hours of sunshine and 86% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
December score
4.2/10
Ranked #12 of 12 months
- Avg temp
- 4°C
- Rainfall
- 89 mm
- Humidity
- 86%
- Days with 6h+ sun
- 5
- Crowd Density
- Quiet / Uncrowded
- Average Expenses
- $ · Budget Friendly ($)
December in Heidelberg scores 4.2/10 for sightseeing and cultural travel - ranked #12 of 12. Expect around 4°C, 89 mm of rain, and roughly 5 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.
December in Heidelberg — the hardest end of the year
At 4°C (39°F) this is proper winter weather in December: layer up and split the day between outdoor highlights and indoor stops.
Budget for roughly 89 mm of rain this month — a flexible day or two helps — with about 5 days with 6+ hours of sunshine and 8.3 hours of daylight to work around it.
That is 4.2/10 on the same scale — 12th of 12 months, versus 9.1/10 for the best month here.
Pack insulated layers, a windproof shell, gloves and boots with grip, a packable rain layer.
Budget for low-season pricing, and crowds are light for this destination.
If your dates are flexible, June is materially better in Heidelberg — 4.9 points higher on the same scale.
Frequently asked
- What is the weather like in Heidelberg in December?
- In December, Heidelberg averages 4°C, 89 mm of rain, and about 5 days with 6+ hours of sunshine. Its climate-comfort score is 4.2/10.
- Is December a good time to visit Heidelberg?
- December earns a 4.2/10 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 December?
- Expect about 89 mm of rain in December. Average humidity is 86% and there are about 5 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.