S
M
T
W
T
F
S
28
89°
73°
29
89°
74°
30
91°
72°
1
87°
74°
2
88°
72°
3
89°
74°
4
90°
74°
5
89°
70°
6
84°
70°
7
85°
68°
8
85°
72°
9
86°
72°
10
86°
72°
11
88°
69°
12
88°
68°
13
86°
69°
14
89°
68°
15
88°
68°
16
90°
69°
17
89°
74°
18
89°
76°
19
88°
71°
20
89°
74°
21
87°
72°
22
88°
69°
23
89°
74°
24
87°
72°
25
88°
75°
26
86°
74°
27
86°
71°
28
88°
68°
29
88°
71°
30
89°
73°
31
88°
72°
1
88°
70°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Ko Olina
Ko Olina's October 2025 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for October is ° with an average low of °. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how October weather will actually feel in Ko Olina. See also: November | December | January.