S
M
T
W
T
F
S
26
84°
67°
27
84°
63°
28
84°
70°
29
81°
70°
30
83°
70°
1
82°
69°
2
83°
70°
3
84°
71°
4
80°
68°
5
86°
68°
6
83°
65°
7
82°
72°
8
82°
69°
9
81°
70°
10
83°
72°
11
84°
72°
12
84°
72°
13
85°
72°
14
82°
71°
15
87°
67°
16
87°
65°
17
90°
69°
18
84°
74°
19
87°
69°
20
84°
72°
21
83°
71°
22
83°
69°
23
77°
65°
24
79°
64°
25
80°
66°
26
79°
65°
27
79°
64°
28
77°
65°
29
76°
63°
30
77°
64°
31
76°
65°
1
77°
64°
2
76°
65°
3
78°
64°
4
80°
65°
5
79°
64°
6
76°
66°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Kailua
Kailua's May 2026 forecast shows daily high temperatures ranging from 76° to 80°, with overnight lows between 63° and 66°. The average high for May is 78° with an average low of 65°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Kailua. See also: June | July | August.
