S
M
T
W
T
F
S
30
85°
71°
31
92°
67°
1
93°
71°
2
92°
70°
3
91°
70°
4
92°
69°
5
90°
69°
6
86°
68°
7
78°
66°
8
84°
65°
9
86°
61°
10
82°
56°
11
83°
53°
12
77°
55°
13
64°
56°
14
77°
65°
15
71°
57°
16
67°
61°
17
71°
59°
18
79°
63°
19
73°
56°
20
72°
54°
21
70°
50°
22
72°
51°
23
73°
55°
24
75°
54°
25
75°
55°
26
72°
46°
27
77°
55°
28
74°
54°
29
73°
53°
30
72°
51°
1
74°
51°
2
72°
50°
3
73°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Jamaica
Jamaica's September 2026 forecast shows daily high temperatures ranging from 64° to 79°, with overnight lows between 46° and 65°. The average high for September is 73° with an average low of 55°. 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 Jamaica. See also: October | November | December.