S
M
T
W
T
F
S
31
N/A
1
64°
55°
2
64°
54°
3
65°
52°
4
60°
47°
5
61°
51°
6
63°
51°
7
67°
53°
8
67°
50°
9
65°
51°
10
66°
50°
11
67°
52°
12
69°
52°
13
70°
54°
14
65°
48°
15
65°
48°
16
66°
53°
17
65°
50°
18
65°
48°
19
66°
50°
20
65°
52°
21
66°
53°
22
66°
54°
23
67°
54°
24
68°
53°
25
66°
52°
26
65°
52°
27
67°
50°
28
66°
51°
29
66°
55°
30
67°
54°
1
68°
51°
2
68°
55°
3
69°
55°
4
68°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Cardiff
Cardiff's June 2026 forecast shows daily high temperatures ranging from 60° to 70°, with overnight lows between 47° and 55°. The average high for June is 66° with an average low of 52°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how June weather will actually feel in Cardiff. See also: July | August | September.
