S
M
T
W
T
F
S
26
77°
59°
27
79°
59°
28
80°
60°
29
77°
60°
30
78°
58°
31
72°
58°
1
73°
57°
2
74°
58°
3
75°
59°
4
77°
59°
5
78°
58°
6
79°
59°
7
79°
60°
8
81°
59°
9
79°
58°
10
80°
59°
11
81°
60°
12
81°
59°
13
80°
60°
14
75°
50°
15
74°
57°
16
70°
49°
17
77°
51°
18
76°
50°
19
74°
46°
20
69°
47°
21
71°
52°
22
70°
51°
23
69°
48°
24
73°
55°
25
72°
55°
26
72°
53°
27
77°
46°
28
74°
46°
29
68°
47°
30
68°
45°
31
69°
46°
1
68°
48°
2
68°
49°
3
71°
44°
4
69°
46°
5
68°
50°
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 68° to 81°, with overnight lows between 44° and 60°. The average high for August is 74° 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.