S
M
T
W
T
F
S
30
75°
58°
31
86°
65°
1
89°
71°
2
92°
70°
3
87°
68°
4
79°
66°
5
80°
57°
6
79°
54°
7
80°
53°
8
84°
66°
9
87°
68°
10
75°
54°
11
76°
54°
12
79°
62°
13
81°
62°
14
76°
57°
15
75°
56°
16
72°
52°
17
74°
53°
18
72°
52°
19
69°
49°
20
78°
56°
21
77°
55°
22
70°
54°
23
71°
53°
24
75°
53°
25
76°
54°
26
77°
53°
27
74°
52°
28
76°
54°
29
76°
54°
30
77°
53°
1
76°
53°
2
71°
47°
3
67°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Poland
Poland's September 2026 forecast shows daily high temperatures ranging from 67° to 87°, with overnight lows between 42° and 68°. The average high for September is 76° with an average low of 54°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Poland. See also: October | November | December.
