S
M
T
W
T
F
S
26
86°
75°
27
85°
75°
28
85°
74°
29
86°
74°
30
85°
73°
31
85°
75°
1
86°
75°
2
85°
74°
3
89°
72°
4
88°
73°
5
88°
72°
6
89°
73°
7
88°
72°
8
89°
73°
9
88°
72°
10
88°
72°
11
89°
73°
12
89°
73°
13
90°
72°
14
89°
73°
15
89°
74°
16
90°
73°
17
89°
74°
18
89°
74°
19
90°
73°
20
89°
73°
21
89°
72°
22
90°
73°
23
89°
73°
24
88°
74°
25
89°
74°
26
90°
73°
27
89°
74°
28
90°
73°
29
89°
74°
30
89°
74°
31
90°
75°
1
90°
75°
2
89°
74°
3
90°
73°
4
91°
73°
5
89°
70°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Ko Olina
Ko Olina's August 2026 forecast shows daily high temperatures ranging from 85° to 91°, with overnight lows between 70° and 75°. The average high for August is 88° with an average low of 73°. 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 Ko Olina. See also: September | October | November.
