S
M
T
W
T
F
S
26
84°
74°
27
85°
73°
28
85°
72°
29
85°
72°
30
84°
73°
31
85°
72°
1
86°
73°
2
85°
72°
3
85°
73°
4
86°
74°
5
86°
74°
6
87°
73°
7
86°
73°
8
85°
74°
9
85°
74°
10
86°
73°
11
86°
75°
12
87°
75°
13
86°
74°
14
87°
75°
15
87°
75°
16
86°
74°
17
88°
76°
18
88°
76°
19
87°
75°
20
88°
76°
21
87°
75°
22
88°
75°
23
87°
74°
24
87°
75°
25
86°
75°
26
87°
74°
27
87°
75°
28
89°
75°
29
87°
71°
30
87°
75°
31
86°
75°
1
87°
74°
2
87°
74°
3
86°
73°
4
87°
74°
5
86°
74°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Hawai‘i Kai
Hawai‘i Kai's August 2026 forecast shows daily high temperatures ranging from 84° to 89°, with overnight lows between 71° and 76°. The average high for August is 86° with an average low of 74°. 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 Hawai‘i Kai. See also: September | October | November.
