S
M
T
W
T
F
S
30
88°
80°
31
85°
79°
1
89°
78°
2
90°
79°
3
91°
78°
4
91°
78°
5
90°
81°
6
90°
80°
7
88°
81°
8
90°
81°
9
89°
80°
10
87°
80°
11
88°
81°
12
89°
81°
13
88°
77°
14
92°
76°
15
91°
75°
16
92°
76°
17
91°
77°
18
91°
75°
19
92°
76°
20
89°
75°
21
88°
75°
22
88°
74°
23
89°
76°
24
88°
76°
25
88°
75°
26
89°
76°
27
89°
75°
28
88°
75°
29
88°
74°
30
89°
75°
1
88°
75°
2
89°
74°
3
88°
76°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Yabucoa
Yabucoa's September 2026 forecast shows daily high temperatures ranging from 87° to 92°, with overnight lows between 74° and 81°. The average high for September is 89° with an average low of 77°. 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 Yabucoa. See also: October | November | December.
