S
M
T
W
T
F
S
31
79°
40°
1
87°
42°
2
89°
45°
3
88°
51°
4
93°
60°
5
93°
57°
6
93°
57°
7
90°
58°
8
88°
53°
9
88°
54°
10
87°
53°
11
84°
52°
12
83°
50°
13
83°
52°
14
84°
55°
15
88°
53°
16
83°
45°
17
85°
51°
18
86°
50°
19
87°
52°
20
90°
51°
21
84°
51°
22
84°
52°
23
79°
49°
24
82°
52°
25
83°
51°
26
85°
53°
27
84°
53°
28
83°
51°
29
85°
53°
30
88°
52°
1
88°
54°
2
89°
55°
3
89°
55°
4
87°
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 79° to 93°, with overnight lows between 45° and 60°. The average high for June is 86° with an average low of 53°. 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.
