S
M
T
W
T
F
S
31
73°
42°
1
71°
45°
2
74°
45°
3
80°
48°
4
80°
54°
5
84°
62°
6
78°
58°
7
71°
55°
8
76°
54°
9
80°
55°
10
81°
58°
11
79°
59°
12
78°
58°
13
80°
57°
14
76°
56°
15
75°
58°
16
76°
56°
17
78°
53°
18
72°
57°
19
72°
53°
20
70°
51°
21
77°
50°
22
68°
50°
23
69°
51°
24
70°
58°
25
75°
59°
26
77°
51°
27
70°
51°
28
71°
53°
29
71°
51°
30
72°
51°
1
73°
54°
2
72°
53°
3
74°
54°
4
78°
59°
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 68° to 84°, with overnight lows between 50° and 62°. The average high for June is 75° with an average low of 55°. 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.
