S
M
T
W
T
F
S
30
108°
78°
31
106°
75°
1
103°
68°
2
103°
71°
3
99°
64°
4
100°
65°
5
101°
65°
6
90°
75°
7
104°
74°
8
111°
80°
9
108°
81°
10
111°
80°
11
107°
81°
12
104°
81°
13
104°
74°
14
104°
67°
15
103°
76°
16
101°
71°
17
98°
76°
18
100°
74°
19
103°
71°
20
101°
64°
21
99°
75°
22
101°
72°
23
105°
64°
24
98°
66°
25
100°
69°
26
103°
67°
27
93°
73°
28
90°
69°
29
97°
75°
30
99°
72°
1
99°
73°
2
100°
76°
3
108°
74°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Salton Sea Beach
Salton Sea Beach's September 2026 forecast shows daily high temperatures ranging from 90° to 108°, with overnight lows between 69° and 76°. The average high for September is 99° with an average low of 73°. 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 Salton Sea Beach. See also: October | November | December.
