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Weather in Heidelberg for December 2026

Your guide to Heidelberg weather in December - trends and predictions

    Rain 🌧️

  • Heidelberg experiences heavy rainfall in December, with over 20 rainy days and an average total precipitation 150.5 mm.

    • More

  • Is December a good time to visit Heidelberg? check out the best time to travel to Heidelberg page.

  • ✨ Is December a good time to visit Heidelberg? – Ask the AI Weatherman

Average dry days
9
Dry days
Average rainy days
22
Rainy days
Average snowy days
0
Snow days
Average temperatures
27°/15°
Temperatures
Average wind speed
21 km/h
Avg max wind
Average humidity
62 %
Avg humidity

Heidelberg Weather December

Move between months or click on a day
November
January
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Light rain
27°
2
Light rain
29°
3
Light rain
30°
4
Partly cloudy
28°
5
Light rain
28°
6
Partly cloudy
31°
7
Partly cloudy
31°
8
Light rain
29°
9
Patchy rain possible
30°
10
Light rain
30°
11
Light rain
30°
12
Patchy rain possible
30°
13
Patchy rain possible
27°
14
Patchy rain possible
25°
15
Thundery outbreaks possible
29°
16
Light rain
27°
17
Moderate rain
29°
18
Light rain
25°
19
Light rain
23°
20
Light rain
23°
21
Light rain
24°
22
Light rain
21°
23
Light rain
25°
24
Light rain
24°
25
Light rain
24°
26
Light rain
28°
27
Light rain
28°
28
Moderate rain
25°
29
Light rain
27°
30
Light rain
26°
31
Light rain
27°

Temperatures trend during December in Heidelberg

See the weather trend as well as the moving average line

December weather in Heidelberg day by day

Click on a date for more information
November January
Date Weather Temperatures Rain UV More
1 Dec. Light rain
Light rain
 27° /14° 3.3 mm 10
2 Dec. Light rain
Light rain
 29° /14° 3.9 mm 10
3 Dec. Light rain
Light rain
 30° /14° 5 mm 10
4 Dec. Partly cloudy
Partly cloudy
 28° /16° 0.4 mm 10
5 Dec. Light rain
Light rain
 28° /16° 9 mm 9
6 Dec. Partly cloudy
Partly cloudy
 31° /16° 0.4 mm 10
7 Dec. Partly cloudy
Partly cloudy
 31° /17° 0.9 mm 10
8 Dec. Light rain
Light rain
 29° /16° 3 mm 10
9 Dec. Patchy rain possible
Patchy rain possible
 30° /16° 1.6 mm 10
10 Dec. Light rain
Light rain
 30° /16° 4.3 mm 10
11 Dec. Light rain
Light rain
 30° /15° 2.8 mm 10
12 Dec. Patchy rain possible
Patchy rain possible
 30° /16° 0.9 mm 10
13 Dec. Patchy rain possible
Patchy rain possible
 27° /17° 1.2 mm 9
14 Dec. Patchy rain possible
Patchy rain possible
 25° /15° 1.5 mm 9
15 Dec. Thundery outbreaks possible
Thundery outbreaks possible
 29° /14° 1.5 mm 10
16 Dec. Light rain
Light rain
 27° /16° 9.4 mm 9
17 Dec. Moderate rain
Moderate rain
 29° /16° 11.4 mm 10
18 Dec. Light rain
Light rain
 25° /16° 5.7 mm 9
19 Dec. Light rain
Light rain
 23° /15° 6.5 mm 8
20 Dec. Light rain
Light rain
 23° /15° 9.7 mm 9
21 Dec. Light rain
Light rain
 24° /15° 6.3 mm 9
22 Dec. Light rain
Light rain
 21° /15° 7.4 mm 7
23 Dec. Light rain
Light rain
 25° /14° 2.8 mm 11
24 Dec. Light rain
Light rain
 24° /15° 6.6 mm 10
25 Dec. Light rain
Light rain
 24° /15° 3.7 mm 8
26 Dec. Light rain
Light rain
 28° /15° 5.4 mm 10
27 Dec. Light rain
Light rain
 28° /15° 8 mm 12
28 Dec. Moderate rain
Moderate rain
 25° /16° 12 mm 10
29 Dec. Light rain
Light rain
 27° /14° 4.8 mm 11
30 Dec. Light rain
Light rain
 26° /16° 3.6 mm 9
31 Dec. Light rain
Light rain
 27° /16° 7.3 mm 11
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.
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Heidelberg in December - FAQ

What are the expected maximum and minimum temperatures in Heidelberg during December?
During December, 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 December?
Significant rainfall exceeding 150.5 mm is expected in Heidelberg during December, occurring over more than 22 days. Preparing for wet conditions is recommended in your planning.

What are the typical wind conditions in Heidelberg during December?
The average wind speed in Heidelberg during December is 21 km/h, suggesting breezy to windy conditions, depending on your activities.

December rainfall patterns in Heidelberg

Explore the daily rainfall trends and prepare for Heidelbergs December weather 💧
Typically, Heidelberg has 22 rainy days in December with a total of 150.5 mm of rainfall.

UV exposure in Heidelberg during December

Stay informed about UV levels for safe outdoor activities throughout the month of December ☀️
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Get accurate weather forecasts for Heidelberg, located at latitude -26.505 and longitude 28.359. Stay updated with localized weather information tailored for Heidelberg.

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