S
M
T
W
T
F
S
30
75°
57°
31
78°
57°
1
78°
58°
2
79°
57°
3
78°
49°
4
75°
48°
5
69°
53°
6
70°
55°
7
73°
56°
8
75°
56°
9
76°
55°
10
75°
53°
11
74°
51°
12
74°
53°
13
73°
54°
14
73°
55°
15
75°
53°
16
74°
46°
17
71°
53°
18
69°
51°
19
72°
48°
20
67°
44°
21
63°
43°
22
62°
48°
23
63°
45°
24
67°
42°
25
61°
42°
26
60°
41°
27
61°
48°
28
67°
44°
29
66°
41°
30
61°
40°
1
60°
42°
2
60°
38°
3
58°
38°
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 58° to 79°, with overnight lows between 38° and 58°. The average high for September is 69° with an average low of 49°. 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.
