S
M
T
W
T
F
S
26
85°
81°
27
86°
81°
28
85°
82°
29
86°
82°
30
86°
80°
31
83°
80°
1
86°
81°
2
86°
80°
3
84°
79°
4
86°
80°
5
85°
81°
6
86°
81°
7
85°
80°
8
86°
79°
9
86°
80°
10
85°
81°
11
86°
79°
12
86°
80°
13
85°
79°
14
86°
79°
15
86°
80°
16
85°
79°
17
86°
80°
18
85°
81°
19
86°
79°
20
85°
81°
21
85°
80°
22
84°
81°
23
85°
80°
24
Hist. Avg.
89°
74°
25
Hist. Avg.
89°
74°
26
Hist. Avg.
89°
74°
27
Hist. Avg.
89°
74°
28
Hist. Avg.
89°
74°
29
Hist. Avg.
88°
74°
30
Hist. Avg.
88°
74°
31
Hist. Avg.
88°
74°
1
Hist. Avg.
88°
74°
2
Hist. Avg.
88°
74°
3
Hist. Avg.
88°
74°
4
Hist. Avg.
88°
74°
5
Hist. Avg.
88°
74°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Cozumel
Cozumel's August 2026 forecast shows daily high temperatures ranging from 83° to 86°, with overnight lows between 79° and 82°. The average high for August is 85° with an average low of 80°. 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 Cozumel. See also: September | October | November.
