S
M
T
W
T
F
S
26
61°
49°
27
62°
49°
28
63°
47°
29
62°
49°
30
61°
53°
1
61°
53°
2
61°
54°
3
64°
50°
4
64°
48°
5
62°
53°
6
64°
51°
7
62°
54°
8
58°
53°
9
59°
53°
10
60°
54°
11
64°
52°
12
60°
52°
13
63°
49°
14
63°
51°
15
64°
51°
16
62°
50°
17
63°
49°
18
68°
52°
19
67°
51°
20
61°
50°
21
60°
53°
22
61°
52°
23
62°
51°
24
63°
50°
25
61°
52°
26
64°
51°
27
59°
51°
28
60°
50°
29
59°
48°
30
60°
48°
31
63°
51°
1
64°
52°
2
67°
55°
3
67°
53°
4
60°
51°
5
62°
52°
6
65°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Seaside
Seaside's May 2026 forecast shows daily high temperatures ranging from 59° to 68°, with overnight lows between 48° and 55°. The average high for May is 63° with an average low of 51°. 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 Seaside. See also: June | July | August.
