S
M
T
W
T
F
S
26
70°
63°
27
68°
59°
28
70°
64°
29
70°
63°
30
72°
52°
31
70°
43°
1
70°
45°
2
77°
54°
3
77°
55°
4
72°
66°
5
68°
59°
6
70°
50°
7
68°
45°
8
70°
45°
9
75°
54°
10
75°
54°
11
83°
61°
12
85°
61°
13
81°
63°
14
76°
59°
15
73°
58°
16
73°
56°
17
72°
60°
18
74°
58°
19
74°
60°
20
74°
58°
21
75°
59°
22
67°
57°
23
65°
55°
24
65°
54°
25
64°
53°
26
64°
53°
27
63°
52°
28
63°
52°
29
64°
53°
30
64°
56°
31
65°
54°
1
64°
53°
2
67°
58°
3
68°
57°
4
67°
56°
5
66°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Llanelli
Llanelli's August 2026 forecast shows daily high temperatures ranging from 63° to 85°, with overnight lows between 52° and 63°. The average high for August is 70° with an average low of 56°. 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 Llanelli. See also: September | October | November.
