S
M
T
W
T
F
S
30
90°
76°
31
89°
77°
1
89°
77°
2
90°
76°
3
90°
76°
4
88°
77°
5
89°
76°
6
90°
76°
7
89°
75°
8
87°
74°
9
87°
75°
10
88°
76°
11
87°
75°
12
89°
76°
13
88°
75°
14
87°
74°
15
86°
75°
16
87°
74°
17
86°
76°
18
87°
77°
19
89°
76°
20
88°
75°
21
89°
76°
22
Hist. Avg.
88°
76°
23
Hist. Avg.
88°
76°
24
Hist. Avg.
87°
76°
25
Hist. Avg.
87°
76°
26
Hist. Avg.
87°
76°
27
Hist. Avg.
87°
75°
28
Hist. Avg.
87°
75°
29
Hist. Avg.
87°
75°
30
Hist. Avg.
87°
75°
1
Hist. Avg.
87°
75°
2
Hist. Avg.
87°
75°
3
Hist. Avg.
87°
75°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in South Palm Beach
South Palm Beach's September 2026 forecast shows daily high temperatures ranging from 86° to 90°, with overnight lows between 74° and 77°. The average high for September is 88° with an average low of 76°. 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 South Palm Beach. See also: October | November | December.
