S
M
T
W
T
F
S
31
84°
60°
1
81°
64°
2
80°
54°
3
80°
56°
4
83°
58°
5
84°
59°
6
84°
64°
7
81°
67°
8
83°
67°
9
80°
63°
10
84°
64°
11
83°
65°
12
85°
64°
13
84°
64°
14
83°
65°
15
84°
63°
16
84°
66°
17
83°
65°
18
79°
67°
19
80°
67°
20
80°
66°
21
81°
67°
22
82°
67°
23
84°
66°
24
82°
63°
25
82°
64°
26
84°
67°
27
85°
67°
28
83°
68°
29
82°
66°
30
83°
62°
1
81°
62°
2
82°
67°
3
82°
68°
4
81°
68°
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 85°, with overnight lows between 54° and 68°. The average high for June is 82° with an average low of 64°. 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.
