Average data for 10 years
1 September
Sunday
+18°
+15°
2 September
Monday
+20°
+15°
3 September
Tuesday
+20°
+16°
4 September
Wednesday
+19°
+16°
5 September
Thursday
+18°
+15°
6 September
Friday
+18°
+14°
7 September
Saturday
+19°
+13°
8 September
Sunday
+18°
+15°
9 September
Monday
+18°
+15°
10 September
Tuesday
+18°
+15°
11 September
Wednesday
+18°
+14°
12 September
Thursday
+19°
+14°
13 September
Friday
+17°
+14°
14 September
Saturday
+16°
+13°
15 September
Sunday
+17°
+13°
16 September
Monday
+16°
+14°
17 September
Tuesday
+16°
+13°
18 September
Wednesday
+14°
+13°
19 September
Thursday
+15°
+11°
20 September
Friday
+16°
+11°
21 September
Saturday
+15°
+11°
22 September
Sunday
+16°
+11°
23 September
Monday
+16°
+11°
24 September
Tuesday
+14°
+12°
25 September
Wednesday
+15°
+11°
26 September
Thursday
+15°
+12°
27 September
Friday
+15°
+11°
28 September
Saturday
+15°
+11°
29 September
Sunday
+15°
+10°
30 September
Monday
+15°
+11°
Cities with similar weather in September
Austria
Vienna
Bulgaria
Sofia
Germany
Frankfurt am Main
Switzerland
Zurich
Slovakia
Bratislava
In September, the weather in Postojna is typically warm. Average daily high temperature in September is about 17 degrees above zero. On average, Postojna has 17 rainy, 9 sunny, 3 partly cloudy, and 1 cloudy day in September. The rains are usually heavy.