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Ko Olina, HI

73°F
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Ko Olina

Hawaii

73°
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Ko Olina, HI Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar Monthly Air Quality Health & Activities

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Today Hourly 10-Day Radar

Monthly

Air Quality Health & Activities
2
Flood Watch

July

January February March April May June July August September October November December

2026

2025 2026 2027

10-Day

S
M
T
W
T
F
S
28
A few showers; windy, humid
87°
72°
29
Very windy; showers around
87°
73°
30
Partly sunny and humid
88°
73°
1
An afternoon shower; humid
87°
72°
2
Humid with clouds and sun
88°
73°
3
Decreasing clouds and humid
87°
72°
4
Plenty of sunshine
88°
73°
5
Mostly sunny, windy and humid
88°
73°
6
Mostly sunny and windy
87°
72°
7
Mostly sunny and windy
88°
72°
8
Mostly sunny and windy
86°
72°
9
Mostly sunny and windy
86°
71°
10
Hist. Avg.
88°
72°
11
Hist. Avg.
88°
72°
12
Hist. Avg.
88°
72°
13
Hist. Avg.
88°
72°
14
Hist. Avg.
88°
72°
15
Hist. Avg.
88°
72°
16
Hist. Avg.
88°
72°
17
Hist. Avg.
88°
72°
18
Hist. Avg.
88°
72°
19
Hist. Avg.
89°
72°
20
Hist. Avg.
89°
72°
21
Hist. Avg.
89°
72°
22
Hist. Avg.
89°
72°
23
Hist. Avg.
89°
72°
24
Hist. Avg.
89°
72°
25
Hist. Avg.
89°
72°
26
Hist. Avg.
89°
72°
27
Hist. Avg.
89°
72°
28
Hist. Avg.
89°
72°
29
Hist. Avg.
89°
72°
30
Hist. Avg.
89°
72°
31
Hist. Avg.
89°
72°
1
Hist. Avg.
89°
72°

Temperature Graph

°F
90° 86° 82° 78° 74° Jul
1 2 3 4 5 6 7 8 9 *10 *11 *12 *13 *14 *15 *16 *17 *18 *19 *20 *21 *22 *23 *24 *25 *26 *27 *28 *29 *30 *31
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable

July Weather in Ko Olina

Ko Olina's July 2026 forecast shows daily high temperatures ranging from 86° to 88°, with overnight lows between 71° and 73°. The average high for July is 87° with an average low of 72°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how July weather will actually feel in Ko Olina. See also: August | September | October.

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