S
M
T
W
T
F
S
30
74°
64°
31
75°
62°
1
75°
61°
2
76°
60°
3
74°
59°
4
73°
58°
5
72°
60°
6
72°
61°
7
74°
62°
8
76°
60°
9
74°
59°
10
74°
59°
11
73°
61°
12
74°
63°
13
76°
64°
14
79°
64°
15
79°
65°
16
78°
67°
17
80°
65°
18
81°
65°
19
79°
66°
20
80°
65°
21
79°
62°
22
78°
61°
23
73°
61°
24
75°
62°
25
79°
64°
26
Hist. Avg.
76°
63°
27
Hist. Avg.
76°
63°
28
Hist. Avg.
75°
62°
29
Hist. Avg.
75°
62°
30
Hist. Avg.
75°
62°
1
Hist. Avg.
75°
62°
2
Hist. Avg.
75°
62°
3
Hist. Avg.
75°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Hermosa Beach
Hermosa Beach's September 2026 forecast shows daily high temperatures ranging from 72° to 81°, with overnight lows between 58° and 67°. The average high for September is 76° with an average low of 62°. 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 Hermosa Beach. See also: October | November | December.
