S
M
T
W
T
F
S
26
84°
55°
27
84°
54°
28
85°
54°
29
84°
55°
30
84°
54°
31
85°
52°
1
83°
51°
2
84°
52°
3
83°
52°
4
83°
53°
5
84°
51°
6
83°
51°
7
89°
54°
8
87°
56°
9
87°
54°
10
88°
55°
11
87°
54°
12
88°
51°
13
85°
54°
14
85°
48°
15
86°
48°
16
86°
49°
17
89°
54°
18
91°
54°
19
92°
55°
20
90°
55°
21
90°
53°
22
89°
53°
23
89°
48°
24
82°
43°
25
82°
44°
26
81°
45°
27
87°
45°
28
86°
46°
29
87°
51°
30
88°
49°
31
89°
50°
1
88°
51°
2
89°
52°
3
88°
49°
4
80°
46°
5
81°
48°
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 80° to 92°, with overnight lows between 43° and 56°. The average high for August is 86° with an average low of 51°. 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.