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
87°
76°
15
88°
76°
16
87°
76°
17
86°
77°
18
84°
76°
19
83°
70°
20
85°
71°
21
86°
70°
22
84°
69°
23
84°
70°
24
85°
70°
25
84°
68°
26
84°
70°
27
83°
68°
28
80°
71°
29
80°
71°
30
81°
70°
31
80°
71°
1
80°
71°
2
81°
70°
3
81°
71°
4
82°
71°
5
80°
70°
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 80° to 88°, with overnight lows between 68° and 77°. The average high for August is 83° 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.
