S
M
T
W
T
F
S
30
87°
73°
31
89°
73°
1
92°
72°
2
95°
75°
3
91°
75°
4
94°
74°
5
97°
72°
6
87°
70°
7
84°
69°
8
84°
66°
9
83°
69°
10
88°
75°
11
88°
74°
12
86°
74°
13
89°
72°
14
87°
70°
15
88°
71°
16
89°
72°
17
88°
71°
18
88°
68°
19
84°
64°
20
81°
66°
21
82°
64°
22
82°
64°
23
83°
68°
24
82°
67°
25
81°
66°
26
79°
64°
27
79°
65°
28
84°
66°
29
84°
66°
30
82°
65°
1
83°
66°
2
83°
65°
3
82°
65°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Navassa
Navassa's September 2026 forecast shows daily high temperatures ranging from 79° to 89°, with overnight lows between 64° and 75°. The average high for September is 84° with an average low of 68°. 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 Navassa. See also: October | November | December.
