S
M
T
W
T
F
S
26
85°
65°
27
84°
69°
28
82°
69°
29
84°
71°
30
87°
68°
31
89°
69°
1
87°
69°
2
87°
69°
3
85°
69°
4
81°
68°
5
83°
66°
6
85°
66°
7
88°
67°
8
95°
66°
9
91°
68°
10
85°
69°
11
91°
69°
12
85°
68°
13
81°
69°
14
82°
68°
15
84°
68°
16
87°
65°
17
91°
64°
18
90°
68°
19
92°
66°
20
86°
67°
21
87°
67°
22
88°
68°
23
98°
67°
24
96°
68°
25
91°
71°
26
92°
69°
27
95°
74°
28
95°
71°
29
91°
73°
30
86°
71°
31
83°
66°
1
84°
65°
2
82°
62°
3
80°
64°
4
80°
64°
5
89°
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 ° to °, with overnight lows between ° and °. The average high for August is ° with an average low of °. 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.
