S
M
T
W
T
F
S
29
55°
43°
30
54°
45°
31
55°
52°
1
55°
41°
2
50°
36°
3
52°
41°
4
52°
37°
5
48°
37°
6
54°
36°
7
59°
46°
8
59°
50°
9
N/A
10
48°
37°
11
51°
44°
12
52°
36°
13
52°
37°
14
54°
46°
15
56°
44°
16
58°
47°
17
57°
46°
18
57°
44°
19
57°
45°
20
56°
44°
21
57°
43°
22
54°
42°
23
52°
39°
24
53°
42°
25
53°
42°
26
54°
40°
27
54°
40°
28
55°
42°
29
54°
45°
30
56°
45°
1
56°
44°
2
57°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
April Weather in Belfast
Belfast's April 2026 forecast shows daily high temperatures ranging from 48° to 58°, with overnight lows between 36° and 47°. The average high for April is 54° with an average low of 43°. 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.