S
M
T
W
T
F
S
26
84°
72°
27
85°
72°
28
85°
73°
29
87°
71°
30
88°
72°
31
87°
75°
1
86°
74°
2
86°
74°
3
86°
75°
4
85°
72°
5
86°
75°
6
88°
73°
7
87°
72°
8
88°
71°
9
87°
72°
10
88°
71°
11
87°
72°
12
88°
72°
13
88°
73°
14
88°
70°
15
84°
73°
16
85°
72°
17
84°
73°
18
84°
73°
19
85°
72°
20
84°
73°
21
84°
73°
22
84°
72°
23
84°
73°
24
84°
73°
25
85°
72°
26
85°
73°
27
86°
73°
28
85°
72°
29
86°
72°
30
85°
73°
31
85°
73°
1
86°
72°
2
85°
73°
3
85°
73°
4
86°
72°
5
85°
73°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Kaunakakai
Kaunakakai's August 2026 forecast shows daily high temperatures ranging from 84° to 88°, with overnight lows between 70° and 75°. The average high for August is 86° 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 Kaunakakai. See also: September | October | November.