S
M
T
W
T
F
S
29
48°
33°
30
52°
40°
31
50°
38°
1
52°
33°
2
57°
32°
3
55°
42°
4
61°
51°
5
63°
50°
6
61°
40°
7
N/A
8
68°
40°
9
65°
48°
10
60°
42°
11
70°
47°
12
56°
44°
13
56°
42°
14
59°
42°
15
62°
44°
16
62°
46°
17
65°
48°
18
67°
47°
19
66°
46°
20
68°
47°
21
58°
42°
22
58°
44°
23
56°
44°
24
56°
43°
25
57°
42°
26
56°
42°
27
58°
40°
28
65°
49°
29
66°
48°
30
67°
50°
1
64°
50°
2
64°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
April Weather in Mainz
Mainz's April 2026 forecast shows daily high temperatures ranging from 56° to 70°, with overnight lows between 40° and 50°. The average high for April is 62° with an average low of 45°. 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 Mainz. See also: May | June | July.
