Heidelberg
December
Weather in Heidelberg for December 2025
Your guide to Heidelberg weather in December - trends and predictions
In general, the average temperature in Heidelberg at the beginning of December is 5 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 8.6 °C by the end of December.
Heidelberg experiences moderate rainfall in December, with an average of 9 rainy days and a total precipitation of 139 mm.
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Temperatures
Rain 🌧️
More
22
Dry days
9
Rainy days
0
Snow days
9°/1°
Temperatures
17 km/h
Avg max wind
78 %
Avg humidity
Heidelberg Weather December
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Temperatures trend during December in Heidelberg
See the weather trend as well as the moving average line
December weather in Heidelberg day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| 1 Dec. |  Moderate snow | 5° /0° | 0.5 mm | 0.4 cm | |
| 2 Dec. |  Partly cloudy | 5° /0° | 1.6 mm | 0 cm | |
| 3 Dec. | Partly cloudy | 4° /1° | 1.5 mm | 0 cm | |
| 4 Dec. |  Light sleet | 3° /0° | 0.6 mm | 0 cm | |
| 5 Dec. |  Light drizzle | 5° /0° | 1.5 mm | 0 cm | |
| 6 Dec. |  Light rain shower | 7° /3° | 4.5 mm | 0 cm | |
| 7 Dec. | Partly cloudy | 6° /2° | 1.5 mm | 0 cm | |
| 8 Dec. | Light rain | 6° /1° | 1.9 mm | 0 cm | |
| 9 Dec. | Light rain | 8° /4° | 4.7 mm | 0 cm | |
| 10 Dec. | Patchy rain possible | 8° /5° | 0.6 mm | 0 cm | |
| 11 Dec. | Light drizzle | 9° /4° | 2.4 mm | 0 cm | |
| 12 Dec. | Light rain | 7° /3° | 6.7 mm | 0 cm | |
| 13 Dec. | Patchy rain possible | 7° /3° | 0.9 mm | 0 cm | |
| 14 Dec. | Light rain shower | 7° /3° | 1.3 mm | 0 cm | |
| 15 Dec. | Light drizzle | 6° /3° | 1.4 mm | 0 cm | |
| 16 Dec. | Partly cloudy | 7° /4° | 0 mm | 0 cm | |
| 17 Dec. |  Sunny | 8° /4° | 0 mm | 0 cm | |
| 18 Dec. | Partly cloudy | 8° /3° | 0 mm | 0 cm | |
| 19 Dec. | Partly cloudy | 9° /3° | 2.4 mm | 0 cm | |
| 20 Dec. | Light drizzle | 6° /3° | 3.6 mm | 0 cm | |
| 21 Dec. | Light rain | 8° /4° | 3.5 mm | 0 cm | |
| 22 Dec. | Light rain shower | 10° /5° | 7.1 mm | 0 cm | |
| 23 Dec. |  Moderate or heavy rain shower | 10° /5° | 5.1 mm | 0.4 cm | |
| 24 Dec. | Patchy rain possible | 8° /5° | 0.7 mm | 0 cm | |
| 25 Dec. | Patchy rain possible | 9° /5° | 0.2 mm | 0 cm | |
| 26 Dec. | Moderate rain at times | 9° /5° | 2.5 mm | 0 cm | |
| 27 Dec. |  Overcast | 7° /3° | 0 mm | 0 cm | |
| 28 Dec. | Patchy rain possible | 7° /2° | 0.4 mm | 0 cm | |
| 29 Dec. | Patchy rain possible | 9° /5° | 0.8 mm | 0 cm | |
| 30 Dec. | Moderate rain at times | 9° /4° | 1 mm | 0 cm | |
| 31 Dec. | Overcast | 10° /6° | 1.1 mm | 0 cm | |
| Next | |||||
Important Notice
Our weather forecast for Heidelberg in December is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Heidelberg forecast closer to your planned date for the most up-to-date weather information.
Change Month
Heidelberg weather in December vs November vs January
Compare December weather in Heidelberg with the previous and following months. See how temperature, rainfall, wind, and other conditions change throughout the year to help you plan your visit.
| November | December | January | |
|---|---|---|---|
| Weather | Light rain shower | Patchy rain possible | Patchy rain possible |
| Temperatures | 11°/4° | 9°/1° | 9°/-1° |
| Rainfall | 173 mm | 139 mm | 226 mm |
| Snowfall | 6 cm | 2 cm | 18 cm |
| Wind | 17.6 km/h | 17 km/h | 16.6 km/h |
| Humidity | 77% | 78% | 76% |
| Rainy days | 10 days | 9 days | 15 days |
| Snow days | 1 days | 0 days | 0 days |
| Dry days | 19 days | 22 days | 16 days |
Planning a trip to Heidelberg? Discover the best time to visit
Heidelberg in December - FAQ
What are the expected maximum and minimum temperatures in Heidelberg during December?
Prepare for cooler days with highs just around 9° and colder nights, dipping below 1°.
How much rainfall should be expected in Heidelberg during December?
Significant rainfall exceeding 139 mm is expected in Heidelberg during December, occurring over more than 9 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Heidelberg in December 2025?
Heidelberg typically sees 2.1 cm of snowfall during December.
What are the typical wind conditions in Heidelberg during December?
The average wind speed in Heidelberg during December is 17 km/h, suggesting breezy to windy conditions, depending on your activities.
What to pack to Heidelberg in December?
As you prepare for your trip to Heidelberg in December, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Heidelberg, during December, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Warm Clothing: Sweaters, hoodies, long pants
- Rain Gear: Lightweight, waterproof clothing
- Footwear
- Waterproof Shoes
- Accessories
- Scarves: To protect you from the cold wind
- Gloves/Mittens: Essential for cold weather
- Warm Hats: Warm hats for insulation in cold weather
- Umbrellas/Raincoats: For rainy days
Heidelberg snow forecast December 2025
Track daily snowfall levels and discover Heidelberg’s snowy potential this December ❄️
December rainfall patterns in Heidelberg
Explore the daily rainfall trends and prepare for Heidelbergs December weather 💧
Quick links
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