S
M
T
W
T
F
S
26
68°
56°
27
68°
53°
28
68°
49°
29
68°
48°
30
69°
49°
1
69°
51°
2
69°
61°
3
69°
61°
4
68°
54°
5
68°
54°
6
69°
51°
7
69°
52°
8
69°
61°
9
68°
60°
10
70°
54°
11
68°
53°
12
68°
54°
13
71°
56°
14
70°
61°
15
70°
62°
16
68°
61°
17
68°
57°
18
69°
52°
19
72°
50°
20
72°
59°
21
70°
54°
22
69°
61°
23
68°
61°
24
71°
59°
25
69°
59°
26
67°
60°
27
68°
57°
28
69°
58°
29
70°
57°
30
71°
58°
31
72°
60°
1
70°
59°
2
71°
60°
3
69°
61°
4
70°
60°
5
65°
57°
6
69°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Imperial Beach
Imperial Beach's May 2026 forecast shows daily high temperatures ranging from 65° to 72°, with overnight lows between 57° and 61°. The average high for May is 69° with an average low of 59°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Imperial Beach. See also: June | July | August.
