S
M
T
W
T
F
S
29
47°
13°
30
55°
42°
31
60°
47°
1
63°
47°
2
47°
39°
3
56°
39°
4
68°
40°
5
52°
41°
6
52°
27°
7
57°
26°
8
43°
21°
9
46°
19°
10
51°
42°
11
60°
39°
12
49°
45°
13
56°
51°
14
68°
48°
15
69°
50°
16
70°
48°
17
66°
46°
18
59°
41°
19
57°
41°
20
56°
41°
21
56°
46°
22
60°
47°
23
62°
39°
24
54°
44°
25
55°
43°
26
54°
42°
27
54°
43°
28
55°
41°
29
54°
40°
30
55°
40°
1
56°
47°
2
64°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Southampton
Southampton's April 2026 forecast shows daily high temperatures ranging from 49° to 70°, with overnight lows between 39° and 51°. The average high for April is 58° with an average low of 44°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how April weather will actually feel in Southampton. See also: May | June | July.
