S
M
T
W
T
F
S
29
46°
30°
30
52°
41°
31
52°
37°
1
54°
36°
2
59°
30°
3
57°
41°
4
63°
52°
5
68°
52°
6
61°
41°
7
68°
41°
8
70°
41°
9
70°
41°
10
57°
48°
11
70°
41°
12
59°
46°
13
52°
46°
14
61°
43°
15
67°
49°
16
70°
50°
17
71°
49°
18
72°
52°
19
64°
47°
20
63°
44°
21
60°
40°
22
61°
44°
23
64°
45°
24
64°
46°
25
64°
48°
26
67°
50°
27
64°
46°
28
61°
44°
29
59°
44°
30
59°
44°
1
60°
43°
2
59°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Mannheim
Mannheim's April 2026 forecast shows daily high temperatures ranging from 59° to 72°, with overnight lows between 40° and 52°. The average high for April is 64° with an average low of 46°. 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 Mannheim. See also: May | June | July.