S
M
T
W
T
F
S
31
90°
75°
1
91°
75°
2
91°
77°
3
90°
77°
4
91°
75°
5
91°
79°
6
91°
77°
7
91°
75°
8
87°
77°
9
90°
73°
10
91°
77°
11
91°
79°
12
91°
75°
13
91°
75°
14
91°
79°
15
93°
76°
16
93°
77°
17
91°
75°
18
84°
76°
19
88°
75°
20
90°
75°
21
91°
76°
22
91°
74°
23
91°
75°
24
88°
77°
25
90°
73°
26
91°
77°
27
90°
75°
28
90°
75°
29
91°
77°
30
91°
75°
1
90°
77°
2
91°
73°
3
90°
73°
4
91°
73°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Aibonito
Aibonito's September 2025 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for September is ° with an average low of °. 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 Aibonito. See also: October | November | December.