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