S
M
T
W
T
F
S
1
54°
46°
2
55°
48°
3
54°
46°
4
57°
43°
5
55°
43°
6
48°
43°
7
46°
45°
8
48°
46°
9
52°
45°
10
50°
45°
11
52°
46°
12
54°
45°
13
45°
37°
14
48°
36°
15
50°
43°
16
50°
45°
17
55°
45°
18
64°
41°
19
61°
43°
20
59°
43°
21
55°
41°
22
55°
39°
23
55°
41°
24
54°
46°
25
46°
39°
26
50°
37°
27
52°
39°
28
52°
36°
29
50°
39°
30
55°
43°
31
57°
46°
1
52°
45°
2
50°
37°
3
54°
46°
4
55°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
March Weather in Cardiff
Cardiff's March 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for March is ° with an average low of °. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how March weather will actually feel in Cardiff. See also: April | May | June.
