S
M
T
W
T
F
S
29
23°
9°
30
28°
11°
31
36°
13°
1
37°
13°
2
34°
27°
3
45°
28°
4
45°
28°
5
34°
26°
6
36°
29°
7
37°
27°
8
42°
27°
9
46°
27°
10
51°
32°
11
53°
28°
12
38°
31°
13
58°
30°
14
42°
31°
15
33°
18°
16
30°
17°
17
43°
29°
18
50°
32°
19
64°
38°
20
64°
39°
21
68°
40°
22
54°
34°
23
44°
25°
24
53°
31°
25
58°
32°
26
60°
36°
27
57°
35°
28
61°
36°
29
61°
38°
30
58°
36°
1
50°
33°
2
51°
37°
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 43° to 68°, with overnight lows between 25° and 40°. The average high for April is 56° with an average low of 34°. 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.
