Weather in Ko Olina, HI
Ko Olina, Wednesday, 28 October, 06:49
Mostly clear. Feels like 73°. High 77°, low 72°.
Monthly outlook for Ko Olina, HI: average high 78.7°, average low 75.3°. That is 1.6° below the climate normal for October. Precipitation is expected on 5 days (about 0.9 inches), against a normal of 4 days and 1.0 inches. The warmest day looks like 11 November (81.6°), the coolest 28 October (72°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 28 October – 6 November | 78.6° | 81.8° | -1.8° |
| 7 November – 16 November | 78.9° | 80.8° | -1.1° |
| 17 November – 26 November | at normal | 80° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Kalaeloa (3 mi).
0
Ko Olina, Thursday, 29 October
Overcast. High 80°, low 76°.
0Ko Olina, Friday, 30 October
Overcast. High 81°, low 76°.
0Ko Olina, Saturday, 31 October
Overcast. High 80°, low 75°.
0.01
Ko Olina, Sunday, 1 November
Light rain. High 78°, low 75°.
0.05Ko Olina, Monday, 2 November
Light rain. High 77°, low 74°.
0.03Ko Olina, Tuesday, 3 November
Light rain. High 78°, low 75°.
0Ko Olina, Wednesday, 4 November
Light rain. High 78°, low 75°.
0.03Ko Olina, Thursday, 5 November
Light rain. High 78°, low 75°.
0.01Ko Olina, Friday, 6 November
Light rain. High 79°, low 75°.
0.28Ko Olina, Saturday, 7 November
Light rain. High 79°, low 76°.
0.07Ko Olina, Sunday, 8 November
Light rain. High 78°, low 76°.
0.09Ko Olina, Monday, 9 November
Light rain. High 76°, low 75°.
0.04Ko Olina, Tuesday, 10 November
Light rain. High 79°, low 76°.
0.02Ko Olina, Wednesday, 11 November
Light rain. High 82°, low 78°.
0Ko Olina, Thursday, 12 November
Light rain. High 80°, low 76°.
0.06
Ko Olina, Friday, 13 November
Climate normal for this date — 60-year average.
0.09Ko Olina, Saturday, 14 November
Climate normal for this date — 60-year average.
0.09Ko Olina, Sunday, 15 November
Climate normal for this date — 60-year average.
0.04Ko Olina, Monday, 16 November
Climate normal for this date — 60-year average.
0.06Ko Olina, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.19Ko Olina, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.14Ko Olina, Thursday, 19 November
Climate normal for this date — 60-year average.
0.09Ko Olina, Friday, 20 November
Climate normal for this date — 60-year average.
0.04Ko Olina, Saturday, 21 November
Climate normal for this date — 60-year average.
0.06
Ko Olina, Sunday, 22 November
Climate normal for this date — 60-year average.
0.06Ko Olina, Monday, 23 November
Climate normal for this date — 60-year average.
0.05Ko Olina, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.04Ko Olina, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.08Ko Olina, Thursday, 26 November
Climate normal for this date — 60-year average.
About the monthly outlook
How accurate is a 30-day forecast?
The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Ko Olina, HI are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.
What does "above normal" mean?
We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.
Where do the 66-year records come from?
They are real temperature extremes recorded in Ko Olina, HI since 1960: the highest and lowest reading for each calendar date, with the year it happened.
How often is it updated?
The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.
Sun and moon today
Weather history
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