S
M
T
W
T
F
S
31
90°
81°
1
90°
76°
2
90°
77°
3
90°
77°
4
90°
79°
5
90°
78°
6
89°
77°
7
88°
76°
8
89°
77°
9
88°
77°
10
89°
77°
11
89°
78°
12
90°
78°
13
89°
75°
14
90°
80°
15
89°
80°
16
89°
82°
17
89°
78°
18
82°
75°
19
85°
74°
20
89°
75°
21
89°
77°
22
90°
76°
23
89°
81°
24
86°
75°
25
88°
76°
26
89°
77°
27
89°
76°
28
89°
72°
29
89°
79°
30
89°
75°
1
89°
76°
2
89°
73°
3
88°
75°
4
89°
76°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Fajardo
Fajardo'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 Fajardo. See also: October | November | December.
