S
M
T
W
T
F
S
26
85°
69°
27
85°
62°
28
85°
68°
29
83°
67°
30
83°
68°
1
83°
69°
2
86°
66°
3
84°
66°
4
84°
68°
5
83°
66°
6
85°
64°
7
83°
70°
8
85°
71°
9
85°
66°
10
85°
70°
11
86°
67°
12
86°
69°
13
86°
71°
14
86°
68°
15
84°
69°
16
86°
71°
17
86°
68°
18
86°
73°
19
87°
69°
20
86°
72°
21
85°
73°
22
83°
71°
23
83°
69°
24
85°
69°
25
84°
69°
26
84°
68°
27
86°
67°
28
85°
69°
29
86°
68°
30
85°
69°
31
86°
68°
1
86°
68°
2
87°
70°
3
87°
69°
4
86°
71°
5
87°
72°
6
83°
73°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Ko Olina
Ko Olina's May 2026 forecast shows daily high temperatures ranging from 83° to 87°, with overnight lows between 67° and 73°. The average high for May is 85° with an average low of 69°. 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 Ko Olina. See also: June | July | August.
