S
M
T
W
T
F
S
26
77°
62°
27
77°
63°
28
78°
64°
29
78°
63°
30
79°
64°
31
82°
66°
1
83°
68°
2
83°
68°
3
82°
67°
4
82°
66°
5
81°
65°
6
80°
65°
7
80°
66°
8
82°
66°
9
82°
68°
10
82°
66°
11
82°
63°
12
82°
62°
13
81°
64°
14
80°
68°
15
81°
69°
16
83°
68°
17
85°
68°
18
85°
69°
19
84°
69°
20
85°
68°
21
85°
68°
22
84°
67°
23
85°
68°
24
85°
67°
25
84°
68°
26
84°
67°
27
83°
67°
28
83°
65°
29
82°
64°
30
80°
66°
31
81°
64°
1
81°
63°
2
82°
62°
3
80°
61°
4
78°
60°
5
77°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Seal Beach
Seal Beach's August 2026 forecast shows daily high temperatures ranging from 77° to 85°, with overnight lows between 60° and 69°. The average high for August is 82° with an average low of 66°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Seal Beach. See also: September | October | November.
