S
M
T
W
T
F
S
31
84°
60°
1
81°
64°
2
84°
59°
3
83°
55°
4
86°
56°
5
85°
58°
6
87°
59°
7
86°
64°
8
82°
72°
9
87°
71°
10
92°
69°
11
93°
71°
12
95°
73°
13
92°
67°
14
89°
70°
15
83°
60°
16
82°
59°
17
88°
63°
18
90°
71°
19
88°
64°
20
89°
61°
21
91°
64°
22
85°
70°
23
81°
62°
24
82°
58°
25
87°
62°
26
88°
66°
27
86°
70°
28
85°
67°
29
90°
71°
30
91°
70°
1
93°
69°
2
91°
72°
3
95°
70°
4
93°
69°
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 85° to 95°, with overnight lows between 67° and 72°. The average high for June is 91° with an average low of 70°. 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.
