S
M
T
W
T
F
S
28
67°
52°
29
68°
52°
30
70°
51°
1
72°
51°
2
72°
52°
3
71°
54°
4
72°
55°
5
72°
52°
6
71°
53°
7
71°
52°
8
73°
55°
9
73°
56°
10
72°
56°
11
74°
55°
12
74°
56°
13
73°
57°
14
76°
57°
15
76°
56°
16
75°
55°
17
72°
53°
18
72°
53°
19
71°
52°
20
73°
53°
21
75°
57°
22
74°
57°
23
73°
58°
24
74°
57°
25
72°
58°
26
Hist. Avg.
72°
57°
27
Hist. Avg.
72°
57°
28
Hist. Avg.
72°
57°
29
Hist. Avg.
72°
57°
30
Hist. Avg.
72°
57°
31
Hist. Avg.
72°
57°
1
Hist. Avg.
72°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
July Weather in Southampton
Southampton's July 2026 forecast shows daily high temperatures ranging from 67° to 76°, with overnight lows between 51° and 58°. The average high for July 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 July weather will actually feel in Southampton. See also: August | September | October.
