S
M
T
W
T
F
S
26
88°
72°
27
86°
71°
28
88°
69°
29
84°
69°
30
83°
75°
31
83°
71°
1
88°
70°
2
86°
74°
3
87°
69°
4
88°
69°
5
82°
70°
6
81°
68°
7
82°
67°
8
81°
68°
9
82°
69°
10
83°
71°
11
86°
69°
12
86°
71°
13
84°
71°
14
82°
69°
15
81°
75°
16
86°
73°
17
87°
73°
18
87°
67°
19
83°
67°
20
81°
68°
21
83°
73°
22
82°
72°
23
85°
73°
24
87°
74°
25
86°
73°
26
86°
72°
27
85°
67°
28
83°
67°
29
79°
73°
30
84°
71°
31
85°
65°
1
Hist. Avg.
80°
65°
2
Hist. Avg.
80°
65°
3
Hist. Avg.
80°
65°
4
Hist. Avg.
79°
65°
5
Hist. Avg.
79°
64°
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 79° to 88°, with overnight lows between 65° and 75°. The average high for August is 84° with an average low of 70°. 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.