S
M
T
W
T
F
S
26
87°
75°
27
87°
74°
28
86°
74°
29
86°
75°
30
87°
76°
31
87°
75°
1
88°
75°
2
87°
74°
3
86°
75°
4
87°
76°
5
87°
75°
6
88°
74°
7
87°
74°
8
87°
75°
9
88°
75°
10
88°
76°
11
89°
74°
12
87°
73°
13
87°
75°
14
88°
74°
15
87°
74°
16
87°
75°
17
88°
75°
18
87°
76°
19
89°
75°
20
88°
76°
21
89°
75°
22
88°
76°
23
88°
76°
24
89°
75°
25
89°
77°
26
89°
76°
27
88°
74°
28
89°
75°
29
Hist. Avg.
89°
75°
30
Hist. Avg.
89°
75°
31
Hist. Avg.
89°
75°
1
Hist. Avg.
89°
75°
2
Hist. Avg.
89°
75°
3
Hist. Avg.
89°
75°
4
Hist. Avg.
89°
75°
5
Hist. Avg.
89°
75°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Waikiki
Waikiki's August 2026 forecast shows daily high temperatures ranging from 86° to 89°, with overnight lows between 73° and 77°. The average high for August is 88° with an average low of 75°. 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 Waikiki. See also: September | October | November.
