S
M
T
W
T
F
S
26
87°
77°
27
90°
77°
28
91°
76°
29
88°
78°
30
87°
79°
31
87°
78°
1
88°
76°
2
88°
78°
3
85°
77°
4
88°
77°
5
88°
78°
6
88°
78°
7
89°
76°
8
89°
79°
9
89°
79°
10
88°
77°
11
88°
78°
12
88°
75°
13
88°
77°
14
89°
77°
15
90°
75°
16
91°
80°
17
87°
79°
18
86°
76°
19
88°
74°
20
87°
78°
21
90°
78°
22
88°
78°
23
88°
77°
24
86°
76°
25
86°
75°
26
84°
73°
27
83°
75°
28
84°
73°
29
83°
69°
30
84°
70°
31
84°
69°
1
83°
69°
2
84°
70°
3
85°
68°
4
86°
71°
5
83°
68°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Kailua
Kailua's August 2026 forecast shows daily high temperatures ranging from 83° to 86°, with overnight lows between 68° and 76°. The average high for August is 84° with an average low of 71°. 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 Kailua. See also: September | October | November.
