S
M
T
W
T
F
S
29
48°
38°
30
42°
30°
31
44°
28°
1
54°
40°
2
44°
36°
3
54°
37°
4
63°
32°
5
67°
36°
6
71°
36°
7
67°
40°
8
62°
36°
9
64°
33°
10
69°
41°
11
56°
38°
12
57°
39°
13
50°
35°
14
49°
29°
15
44°
28°
16
45°
25°
17
51°
27°
18
49°
29°
19
51°
28°
20
51°
27°
21
52°
28°
22
54°
27°
23
47°
23°
24
46°
22°
25
47°
22°
26
49°
24°
27
50°
25°
28
49°
26°
29
50°
25°
30
51°
26°
1
52°
25°
2
55°
33°
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 44° to 69°, with overnight lows between 22° and 41°. The average high for April is 52° with an average low of 29°. 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.
