Average data for 10 years
1 September
Sunday
+20°
+16°
2 September
Monday
+21°
+16°
3 September
Tuesday
+21°
+17°
4 September
Wednesday
+20°
+15°
5 September
Thursday
+21°
+15°
6 September
Friday
+19°
+17°
7 September
Saturday
+20°
+15°
8 September
Sunday
+20°
+15°
9 September
Monday
+21°
+15°
10 September
Tuesday
+20°
+16°
11 September
Wednesday
+21°
+15°
12 September
Thursday
+18°
+15°
13 September
Friday
+18°
+15°
14 September
Saturday
+17°
+13°
15 September
Sunday
+17°
+14°
16 September
Monday
+17°
+13°
17 September
Tuesday
+17°
+13°
18 September
Wednesday
+16°
+13°
19 September
Thursday
+17°
+13°
20 September
Friday
+17°
+13°
21 September
Saturday
+18°
+13°
22 September
Sunday
+17°
+13°
23 September
Monday
+18°
+12°
24 September
Tuesday
+17°
+13°
25 September
Wednesday
+18°
+13°
26 September
Thursday
+18°
+13°
27 September
Friday
+18°
+12°
28 September
Saturday
+18°
+14°
29 September
Sunday
+18°
+14°
30 September
Monday
+16°
+13°
Cities with similar weather in September
France
Paris
Germany
Berlin
Austria
Vienna
Canada
Vancouver
Slovenia
Ljubljana
In September, the weather in Heidelberg is typically warm. Average daily high temperature in September is about 18 degrees above zero. On average, Heidelberg has 14 partly cloudy, 10 sunny, and 6 rainy days in September. The rains are usually moderate. September as well as August is considered the most comfortable time to visit Heidelberg.