S
M
T
W
T
F
S
30
93°
61°
31
92°
60°
1
92°
61°
2
93°
62°
3
96°
63°
4
96°
64°
5
95°
63°
6
97°
63°
7
97°
64°
8
96°
64°
9
95°
63°
10
88°
63°
11
88°
62°
12
93°
64°
13
94°
65°
14
95°
63°
15
94°
62°
16
93°
61°
17
91°
62°
18
93°
62°
19
94°
62°
20
86°
53°
21
Hist. Avg.
90°
59°
22
Hist. Avg.
89°
58°
23
Hist. Avg.
89°
58°
24
Hist. Avg.
89°
58°
25
Hist. Avg.
89°
58°
26
Hist. Avg.
88°
58°
27
Hist. Avg.
88°
57°
28
Hist. Avg.
88°
57°
29
Hist. Avg.
87°
57°
30
Hist. Avg.
87°
57°
1
Hist. Avg.
87°
56°
2
Hist. Avg.
86°
56°
3
Hist. Avg.
86°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Sunset
Sunset's September 2026 forecast shows daily high temperatures ranging from 86° to 97°, with overnight lows between 53° and 65°. The average high for September is 93° 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 Sunset. See also: October | November | December.
