S
M
T
W
T
F
S
26
88°
70°
27
88°
70°
28
83°
70°
29
85°
70°
30
88°
69°
31
90°
69°
1
86°
69°
2
89°
70°
3
83°
69°
4
80°
69°
5
80°
68°
6
80°
69°
7
85°
68°
8
84°
70°
9
85°
69°
10
84°
68°
11
82°
67°
12
84°
68°
13
82°
69°
14
83°
68°
15
81°
65°
16
83°
67°
17
80°
65°
18
81°
67°
19
83°
68°
20
84°
67°
21
84°
67°
22
85°
68°
23
85°
69°
24
86°
69°
25
85°
68°
26
85°
68°
27
84°
69°
28
85°
69°
29
84°
68°
30
85°
69°
31
85°
69°
1
84°
68°
2
85°
68°
3
83°
67°
4
82°
68°
5
81°
68°
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 80° to 89°, with overnight lows between 65° and 70°. The average high for August is 83° with an average low of 68°. 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.