S
M
T
W
T
F
S
26
88°
75°
27
88°
75°
28
90°
76°
29
89°
78°
30
90°
76°
31
89°
80°
1
89°
76°
2
87°
77°
3
88°
75°
4
89°
76°
5
90°
75°
6
88°
77°
7
90°
77°
8
90°
78°
9
90°
78°
10
89°
78°
11
90°
78°
12
89°
75°
13
89°
78°
14
89°
76°
15
84°
76°
16
83°
78°
17
86°
76°
18
87°
75°
19
89°
74°
20
87°
74°
21
89°
75°
22
91°
78°
23
89°
79°
24
90°
78°
25
89°
75°
26
88°
75°
27
89°
76°
28
90°
75°
29
88°
76°
30
89°
75°
31
90°
75°
1
89°
77°
2
90°
76°
3
89°
77°
4
86°
78°
5
86°
77°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Oahu Market
Oahu Market's August 2026 forecast shows daily high temperatures ranging from 86° to 91°, with overnight lows between 75° and 79°. The average high for August is 89° with an average low of 76°. 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 Oahu Market. See also: September | October | November.
