S
M
T
W
T
F
S
30
94°
71°
31
93°
70°
1
93°
70°
2
92°
67°
3
91°
66°
4
89°
68°
5
90°
68°
6
91°
67°
7
90°
68°
8
89°
67°
9
90°
69°
10
90°
68°
11
89°
66°
12
85°
66°
13
83°
65°
14
83°
66°
15
84°
65°
16
83°
65°
17
83°
64°
18
82°
60°
19
81°
58°
20
80°
57°
21
79°
58°
22
80°
61°
23
82°
63°
24
84°
64°
25
85°
63°
26
84°
60°
27
83°
61°
28
78°
59°
29
81°
56°
30
77°
60°
1
Hist. Avg.
81°
59°
2
Hist. Avg.
81°
59°
3
Hist. Avg.
81°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Sweden
Sweden's September 2026 forecast shows daily high temperatures ranging from 77° to 94°, with overnight lows between 56° and 71°. The average high for September is 86° with an average low of 64°. 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 Sweden. See also: October | November | December.
