S
M
T
W
T
F
S
26
65°
55°
27
65°
54°
28
67°
54°
29
68°
54°
30
69°
58°
1
69°
60°
2
66°
59°
3
67°
60°
4
67°
56°
5
66°
56°
6
68°
55°
7
67°
56°
8
68°
61°
9
68°
61°
10
68°
61°
11
67°
59°
12
69°
58°
13
68°
60°
14
71°
59°
15
70°
61°
16
67°
60°
17
68°
62°
18
70°
61°
19
71°
62°
20
70°
65°
21
67°
61°
22
66°
64°
23
67°
63°
24
65°
62°
25
65°
60°
26
66°
62°
27
69°
59°
28
70°
61°
29
67°
60°
30
63°
56°
31
69°
62°
1
71°
63°
2
71°
64°
3
70°
64°
4
71°
63°
5
71°
64°
6
70°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Balboa Island
Balboa Island's May 2026 forecast shows daily high temperatures ranging from 63° to 71°, with overnight lows between 56° and 65°. The average high for May is 68° with an average low of 62°. 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 Balboa Island. See also: June | July | August.
