S
M
T
W
T
F
S
30
79°
70°
31
78°
71°
1
83°
65°
2
78°
65°
3
78°
66°
4
79°
64°
5
77°
64°
6
80°
67°
7
80°
66°
8
78°
69°
9
82°
69°
10
77°
68°
11
79°
68°
12
81°
67°
13
81°
68°
14
80°
68°
15
81°
67°
16
81°
62°
17
78°
65°
18
72°
68°
19
78°
67°
20
80°
67°
21
79°
65°
22
78°
58°
23
74°
58°
24
Hist. Avg.
73°
58°
25
Hist. Avg.
73°
58°
26
Hist. Avg.
72°
57°
27
Hist. Avg.
72°
57°
28
Hist. Avg.
72°
57°
29
Hist. Avg.
71°
56°
30
Hist. Avg.
71°
56°
1
Hist. Avg.
70°
56°
2
Hist. Avg.
70°
55°
3
Hist. Avg.
70°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Jamaica
Jamaica's September 2026 forecast shows daily high temperatures ranging from 72° to 83°, with overnight lows between 58° and 71°. The average high for September is 79° with an average low of 66°. 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.