S
M
T
W
T
F
S
29
45°
34°
30
48°
30°
31
55°
36°
1
50°
43°
2
54°
43°
3
57°
43°
4
57°
41°
5
61°
43°
6
68°
41°
7
54°
39°
8
57°
36°
9
59°
36°
10
63°
39°
11
52°
43°
12
55°
48°
13
54°
45°
14
48°
39°
15
50°
36°
16
54°
36°
17
55°
39°
18
66°
43°
19
64°
46°
20
66°
45°
21
61°
48°
22
55°
50°
23
57°
43°
24
63°
41°
25
64°
41°
26
66°
37°
27
59°
43°
28
55°
43°
29
63°
39°
30
66°
41°
1
68°
46°
2
68°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Belfast
Belfast's April 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for April 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 April weather will actually feel in Belfast. See also: May | June | July.