S
M
T
W
T
F
S
26
67°
56°
27
70°
53°
28
71°
54°
29
72°
56°
30
73°
57°
31
73°
55°
1
69°
56°
2
69°
56°
3
70°
57°
4
69°
58°
5
69°
55°
6
70°
56°
7
69°
56°
8
69°
55°
9
70°
56°
10
68°
52°
11
68°
53°
12
69°
53°
13
70°
52°
14
68°
54°
15
72°
54°
16
72°
54°
17
73°
54°
18
73°
53°
19
72°
56°
20
73°
58°
21
73°
57°
22
72°
56°
23
72°
56°
24
71°
55°
25
72°
56°
26
72°
56°
27
70°
55°
28
71°
54°
29
69°
52°
30
67°
51°
31
69°
52°
1
67°
53°
2
70°
53°
3
68°
52°
4
68°
53°
5
65°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Llantwit Major
Llantwit Major's August 2026 forecast shows daily high temperatures ranging from 65° to 73°, with overnight lows between 51° and 58°. The average high for August is 70° with an average low of 55°. 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 Llantwit Major. See also: September | October | November.
