S
M
T
W
T
F
S
30
76°
45°
31
75°
47°
1
76°
50°
2
79°
53°
3
80°
53°
4
81°
52°
5
81°
51°
6
80°
50°
7
81°
52°
8
82°
49°
9
81°
47°
10
79°
49°
11
76°
46°
12
72°
49°
13
76°
45°
14
75°
44°
15
75°
46°
16
74°
44°
17
77°
48°
18
79°
46°
19
77°
45°
20
75°
44°
21
76°
46°
22
75°
44°
23
76°
45°
24
78°
41°
25
69°
46°
26
72°
45°
27
77°
42°
28
76°
38°
29
69°
40°
30
73°
38°
1
74°
34°
2
66°
35°
3
67°
35°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Bonito
Bonito's September 2026 forecast shows daily high temperatures ranging from 66° to 82°, with overnight lows between 34° and 53°. The average high for September is 76° with an average low of 45°. 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 Bonito. See also: October | November | December.