S
M
T
W
T
F
S
29
50°
39°
30
55°
43°
31
57°
46°
1
52°
45°
2
50°
37°
3
54°
46°
4
55°
46°
5
50°
43°
6
57°
39°
7
68°
45°
8
64°
46°
9
54°
41°
10
52°
39°
11
52°
45°
12
52°
43°
13
54°
37°
14
54°
45°
15
57°
50°
16
57°
50°
17
55°
48°
18
54°
41°
19
55°
39°
20
57°
43°
21
59°
41°
22
64°
44°
23
70°
43°
24
70°
46°
25
68°
45°
26
64°
44°
27
64°
44°
28
62°
44°
29
64°
45°
30
64°
46°
1
63°
44°
2
62°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Cardiff
Cardiff's April 2026 forecast shows daily high temperatures ranging from 59° to 70°, with overnight lows between 41° and 46°. The average high for April is 65° with an average low of 44°. 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 Cardiff. See also: May | June | July.
