S
M
T
W
T
F
S
31
61°
38°
1
62°
37°
2
61°
32°
3
62°
37°
4
63°
36°
5
65°
38°
6
68°
43°
7
70°
37°
8
62°
34°
9
61°
40°
10
64°
34°
11
62°
31°
12
64°
40°
13
72°
44°
14
75°
45°
15
74°
46°
16
75°
45°
17
75°
44°
18
72°
43°
19
63°
36°
20
65°
36°
21
72°
43°
22
74°
43°
23
77°
46°
24
78°
44°
25
78°
46°
26
77°
43°
27
77°
40°
28
76°
40°
29
78°
42°
30
78°
45°
1
80°
46°
2
79°
45°
3
80°
47°
4
79°
47°
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 61° to 80°, with overnight lows between 31° and 47°. The average high for June is 71° with an average low of 41°. 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.
