S
M
T
W
T
F
S
31
61°
55°
1
64°
55°
2
66°
57°
3
63°
57°
4
67°
57°
5
74°
57°
6
74°
53°
7
66°
58°
8
74°
57°
9
73°
52°
10
74°
50°
11
75°
60°
12
61°
57°
13
65°
54°
14
66°
53°
15
63°
56°
16
64°
55°
17
62°
54°
18
65°
52°
19
62°
48°
20
66°
46°
21
67°
59°
22
59°
44°
23
51°
36°
24
54°
36°
25
59°
38°
26
61°
34°
27
61°
37°
28
61°
36°
29
53°
34°
30
54°
30°
1
53°
33°
2
54°
30°
3
51°
28°
4
52°
39°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Turku
Turku's September 2025 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for September is ° with an average low of °. 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 Turku. See also: October | November | December.
