S
M
T
W
T
F
S
26
71°
54°
27
69°
54°
28
68°
56°
29
68°
56°
30
69°
53°
31
68°
55°
1
69°
56°
2
71°
52°
3
68°
57°
4
70°
58°
5
71°
54°
6
69°
53°
7
69°
54°
8
70°
55°
9
72°
53°
10
72°
54°
11
70°
54°
12
70°
55°
13
67°
55°
14
68°
54°
15
67°
53°
16
68°
55°
17
69°
54°
18
69°
56°
19
67°
56°
20
67°
55°
21
66°
56°
22
66°
55°
23
69°
56°
24
68°
55°
25
68°
54°
26
67°
53°
27
66°
54°
28
69°
55°
29
68°
52°
30
65°
54°
31
66°
52°
1
66°
52°
2
67°
55°
3
Hist. Avg.
65°
52°
4
Hist. Avg.
65°
52°
5
Hist. Avg.
65°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Wales
Wales's August 2026 forecast shows daily high temperatures ranging from 65° to 72°, with overnight lows between 52° and 58°. The average high for August is 68° with an average low of 54°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Wales. See also: September | October | November.