S
M
T
W
T
F
S
30
89°
76°
31
90°
75°
1
90°
76°
2
89°
75°
3
90°
75°
4
88°
76°
5
89°
74°
6
88°
75°
7
90°
72°
8
89°
71°
9
86°
73°
10
88°
74°
11
89°
73°
12
89°
75°
13
89°
74°
14
89°
75°
15
Hist. Avg.
89°
71°
16
Hist. Avg.
88°
71°
17
Hist. Avg.
88°
71°
18
Hist. Avg.
88°
70°
19
Hist. Avg.
88°
70°
20
Hist. Avg.
88°
70°
21
Hist. Avg.
88°
70°
22
Hist. Avg.
87°
69°
23
Hist. Avg.
87°
69°
24
Hist. Avg.
87°
68°
25
Hist. Avg.
87°
68°
26
Hist. Avg.
86°
68°
27
Hist. Avg.
86°
67°
28
Hist. Avg.
86°
67°
29
Hist. Avg.
86°
67°
30
Hist. Avg.
85°
66°
1
Hist. Avg.
85°
66°
2
Hist. Avg.
85°
66°
3
Hist. Avg.
85°
65°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Laguna Beach
Laguna Beach's September 2026 forecast shows daily high temperatures ranging from 86° to 90°, with overnight lows between 71° and 76°. The average high for September is 89° with an average low of 74°. 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 Laguna Beach. See also: October | November | December.