S
M
T
W
T
F
S
26
87°
66°
27
88°
67°
28
89°
69°
29
90°
69°
30
88°
68°
31
89°
69°
1
90°
69°
2
89°
70°
3
90°
68°
4
87°
67°
5
88°
68°
6
89°
67°
7
86°
66°
8
84°
65°
9
82°
64°
10
79°
68°
11
89°
68°
12
89°
67°
13
88°
67°
14
87°
66°
15
86°
66°
16
86°
64°
17
84°
63°
18
86°
64°
19
86°
63°
20
85°
64°
21
86°
63°
22
85°
57°
23
77°
54°
24
77°
53°
25
78°
54°
26
78°
53°
27
80°
54°
28
79°
61°
29
80°
61°
30
81°
60°
31
85°
61°
1
86°
60°
2
85°
58°
3
83°
59°
4
79°
60°
5
83°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Jamaica
Jamaica's August 2026 forecast shows daily high temperatures ranging from 77° to 90°, with overnight lows between 53° and 70°. The average high for August is 85° with an average low of 63°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Jamaica. See also: September | October | November.