Average data for 10 years
1 December
Sunday
+4°
+3°
2 December
Monday
+3°
+1°
3 December
Tuesday
+3°
+1°
4 December
Wednesday
+4°
+3°
5 December
Thursday
+5°
+3°
6 December
Friday
+5°
+3°
7 December
Saturday
+4°
+3°
8 December
Sunday
+4°
+2°
9 December
Monday
+5°
+1°
10 December
Tuesday
+5°
+3°
11 December
Wednesday
+5°
+3°
12 December
Thursday
+3°
+2°
13 December
Friday
+3°
+2°
14 December
Saturday
+4°
+2°
15 December
Sunday
+5°
+3°
16 December
Monday
+4°
+3°
17 December
Tuesday
+4°
+2°
18 December
Wednesday
+3°
+2°
19 December
Thursday
+4°
+2°
20 December
Friday
+4°
+2°
21 December
Saturday
+8°
+4°
22 December
Sunday
+7°
+6°
23 December
Monday
+7°
+5°
24 December
Tuesday
+6°
+6°
25 December
Wednesday
+6°
+4°
26 December
Thursday
+4°
+3°
27 December
Friday
+3°
+3°
28 December
Saturday
+4°
+2°
29 December
Sunday
+5°
+3°
30 December
Monday
+4°
+3°
31 December
Tuesday
+4°
+3°
Cities with similar weather in December
Georgia
Tbilisi
Germany
Berlin
Belgium
Brussels
Ireland
Dublin
Croatia
Zagreb
December in Heidelberg is the windiest and the cloudiest month of the year. In December, the weather in Heidelberg is typically cold. Average daily high temperature in December is about 4 degrees above zero. On average, Heidelberg has 17 rainy, 11 cloudy, 2 sunny, and 1 partly cloudy day in December. The rains are usually moderate. December as well as January, February, and November is considered the most uncomfortable time to visit Heidelberg.