S
M
T
W
T
F
S
26
80°
67°
27
84°
71°
28
84°
71°
29
80°
70°
30
84°
68°
31
81°
65°
1
79°
65°
2
80°
66°
3
79°
69°
4
84°
71°
5
86°
71°
6
86°
70°
7
82°
69°
8
85°
70°
9
85°
69°
10
83°
64°
11
80°
63°
12
81°
65°
13
79°
63°
14
81°
64°
15
79°
65°
16
79°
69°
17
78°
67°
18
79°
65°
19
78°
63°
20
78°
63°
21
79°
65°
22
80°
68°
23
79°
67°
24
83°
68°
25
83°
61°
26
82°
60°
27
77°
61°
28
78°
62°
29
77°
65°
30
76°
66°
31
77°
67°
1
81°
61°
2
76°
61°
3
77°
62°
4
76°
60°
5
76°
60°
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 76° to 86°, with overnight lows between 60° and 71°. The average high for August is 80° 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 Long Beach. See also: September | October | November.