S
M
T
W
T
F
S
26
85°
68°
27
85°
67°
28
84°
68°
29
84°
67°
30
83°
67°
31
83°
64°
1
81°
62°
2
78°
61°
3
78°
62°
4
79°
64°
5
79°
67°
6
83°
68°
7
85°
68°
8
85°
67°
9
84°
69°
10
86°
69°
11
85°
68°
12
82°
67°
13
83°
66°
14
82°
68°
15
82°
69°
16
83°
69°
17
86°
68°
18
82°
69°
19
86°
68°
20
86°
64°
21
83°
62°
22
80°
62°
23
80°
66°
24
81°
68°
25
83°
66°
26
80°
62°
27
80°
62°
28
81°
63°
29
79°
63°
30
80°
62°
31
81°
64°
1
82°
63°
2
83°
63°
3
82°
64°
4
80°
63°
5
79°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Long Beach
Long Beach's August 2026 forecast shows daily high temperatures ranging from 78° to 86°, with overnight lows between 61° and 69°. The average high for August is 82° with an average low of 65°. 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 Long Beach. See also: September | October | November.