S
M
T
W
T
F
S
29
48°
36°
30
45°
36°
31
48°
32°
1
55°
28°
2
52°
39°
3
39°
36°
4
41°
32°
5
48°
32°
6
45°
37°
7
45°
37°
8
50°
30°
9
46°
27°
10
48°
27°
11
50°
27°
12
54°
30°
13
54°
34°
14
52°
40°
15
51°
33°
16
56°
35°
17
55°
34°
18
56°
35°
19
51°
33°
20
51°
36°
21
52°
35°
22
53°
36°
23
57°
38°
24
55°
38°
25
54°
37°
26
49°
38°
27
48°
37°
28
48°
38°
29
49°
37°
30
50°
36°
1
53°
37°
2
55°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Södertälje
Södertälje's April 2026 forecast shows daily high temperatures ranging from 48° to 57°, with overnight lows between 33° and 43°. The average high for April is 52° with an average low of 37°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how April weather will actually feel in Södertälje. See also: May | June | July.