Heidelberg
January
Weather in Heidelberg for January 2026
Your guide to Heidelberg weather in January - trends and predictions
So far, January 2026 in Heidelberg is slightly warmer than the historical average by 0.7 °C.
Expect cooler weather in the next days in Heidelberg with the forecast suggesting a temperature of 28.7 °C, lower than the historical average.
In general, the average temperature in Heidelberg at the beginning of January is 25.6 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 30.3 °C by the end of January.
Heidelberg in January brings notable rainfall, with an average of 19 rainy days and a total precipitation of 191.8 mm.
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Temperatures
Rain 🌧️
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12
Dry days
19
Rainy days
0
Snow days
27°/15°
Temperatures
17 km/h
Avg max wind
68 %
Avg humidity
Heidelberg Weather January
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Temperatures trend during January in Heidelberg
See the weather trend as well as the moving average line
January weather in Heidelberg day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Jan. |  Moderate or heavy rain shower | 25° /15° | 29.6 mm | 12 | |
| 2 Jan. |  Light rain shower | 26° /14° | 4.9 mm | 12 | |
| 3 Jan. | Patchy rain possible | 28° /15° | 6.3 mm | 10 | |
| 4 Jan. | Patchy rain possible | 24° /14° | 10.1 mm | 8 | |
| 5 Jan. | Light rain shower | 26° /13° | 8.8 mm | 11 | |
| 6 Jan. | Light rain shower | 24° /14° | 6.4 mm | 12 | |
| 7 Jan. | Light rain shower | 26° /17° | 18.6 mm | 12 | |
| 8 Jan. | Light rain shower | 25° /15° | 11.4 mm | 12 | |
| 9 Jan. | Patchy rain possible | 29° /15° | 0.2 mm | 12 | |
| 10 Jan. | Patchy rain possible | 29° /15° | 0.6 mm | 12 | |
| 11 Jan. | Light rain shower | 28° /15° | 8.4 mm | 13 | |
| 12 Jan. | Light rain shower | 26° /14° | 2.7 mm | 12 | |
| 13 Jan. | Light rain shower | 25° /14° | 4.7 mm | 11 | |
| 14 Jan. | Patchy rain possible | 28° /13° | 0.1 mm | 12 | |
| 15 Jan. | Patchy rain possible | 28° /15° | 4.2 mm | 10 | |
| 16 Jan. |  Patchy light drizzle | 26° /14° | 16.5 mm | 10 | |
| 17 Jan. | Moderate or heavy rain shower | 25° /15° | 10.3 mm | 11 | |
| 18 Jan. | Patchy rain possible | 28° /15° | 1.6 mm | 9 | |
| 19 Jan. | Patchy light rain | 28° /15° | 2.8 mm | 10 | |
| 20 Jan. |  Sunny | 29° /14° | 4.4 mm | 9 | |
| 21 Jan. |  Partly cloudy | 27° /13° | 0.3 mm | 11 | |
| 22 Jan. | Patchy rain possible | 29° /13° | 1 mm | 11 | |
| 23 Jan. | Patchy rain possible | 30° /13° | 1.4 mm | 11 | |
| 24 Jan. | Partly cloudy | 30° /14° | 0.1 mm | 12 | |
| 25 Jan. | Patchy rain possible | 30° /14° | 0.1 mm | 12 | |
| 26 Jan. | Partly cloudy | 31° /14° | 0.8 mm | 12 | |
| 27 Jan. | Partly cloudy | 31° /15° | 0.5 mm | 12 | |
| 28 Jan. | Sunny | 30° /14° | 0.8 mm | 12 | |
| 29 Jan. |  Moderate rain | 31° /15° | 6 mm | 2.9 | |
| 30 Jan. | Patchy rain possible | 29° /14° | 3.8 mm | 3.3 | |
| 31 Jan. | Moderate rain | 30° /14° | 10.3 mm | 3 | |
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Important Notice
Our weather forecast for Heidelberg in January 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.
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Heidelberg in January - FAQ
What are the expected maximum and minimum temperatures in Heidelberg during January?
During January, expect a variety of temperatures with highs around 27° and lows near 15°, suitable for diverse activities and preferences.
How much rainfall should be expected in Heidelberg during January?
Significant rainfall exceeding 191.8 mm is expected in Heidelberg during January, occurring over more than 19 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Heidelberg during January?
The average wind speed in Heidelberg during January is 17 km/h, suggesting breezy to windy conditions, depending on your activities.
January rainfall patterns in Heidelberg
Explore the daily rainfall trends and prepare for Heidelbergs January weather 💧
Typically, Heidelberg has 19 rainy days in January with a total of 191.8 mm of rainfall.
UV exposure in Heidelberg during January
Stay informed about UV levels for safe outdoor activities throughout the month of January ☀️
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