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
55°
38°
10
51°
44°
11
53°
43°
12
53°
39°
13
54°
37°
14
57°
41°
15
56°
45°
16
59°
42°
17
60°
44°
18
60°
46°
19
61°
45°
20
62°
44°
21
64°
45°
22
56°
41°
23
55°
42°
24
55°
40°
25
56°
39°
26
56°
39°
27
57°
41°
28
60°
45°
29
62°
46°
30
62°
46°
1
60°
45°
2
60°
45°
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 51° to 64°, with overnight lows between 37° and 46°. The average high for April is 58° 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 Cardiff. See also: May | June | July.
