S
M
T
W
T
F
S
30
90°
77°
31
91°
78°
1
91°
75°
2
91°
75°
3
90°
75°
4
91°
77°
5
91°
77°
6
93°
81°
7
91°
80°
8
93°
79°
9
93°
77°
10
93°
75°
11
93°
79°
12
93°
79°
13
93°
77°
14
91°
79°
15
93°
77°
16
92°
76°
17
90°
77°
18
91°
79°
19
91°
77°
20
90°
77°
21
90°
79°
22
91°
76°
23
91°
76°
24
91°
76°
25
92°
75°
26
91°
76°
27
92°
76°
28
93°
74°
29
91°
76°
30
90°
75°
1
91°
76°
2
88°
71°
3
88°
72°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Ponce
Ponce's September 2026 forecast shows daily high temperatures ranging from 88° to 93°, with overnight lows between 71° and 76°. The average high for September is 91° with an average low of 75°. 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 Ponce. See also: October | November | December.
