S
M
T
W
T
F
S
26
72°
57°
27
70°
58°
28
75°
53°
29
73°
57°
30
72°
57°
31
71°
55°
1
72°
51°
2
71°
51°
3
70°
54°
4
74°
52°
5
70°
53°
6
70°
56°
7
71°
53°
8
72°
57°
9
73°
56°
10
75°
57°
11
76°
57°
12
76°
56°
13
75°
55°
14
72°
52°
15
70°
53°
16
72°
55°
17
73°
56°
18
71°
53°
19
69°
53°
20
72°
54°
21
74°
55°
22
70°
50°
23
69°
53°
24
Hist. Avg.
70°
55°
25
Hist. Avg.
70°
55°
26
Hist. Avg.
70°
55°
27
Hist. Avg.
69°
55°
28
Hist. Avg.
69°
55°
29
Hist. Avg.
69°
55°
30
Hist. Avg.
69°
55°
31
Hist. Avg.
69°
55°
1
Hist. Avg.
69°
54°
2
Hist. Avg.
68°
54°
3
Hist. Avg.
68°
54°
4
Hist. Avg.
68°
54°
5
Hist. Avg.
68°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Southampton
Southampton's August 2026 forecast shows daily high temperatures ranging from 69° to 76°, with overnight lows between 50° and 58°. The average high for August is 72° 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 Southampton. See also: September | October | November.
