Weather in Ko Olina, HI
Ko Olina, Wednesday, 11 November, 01:28
Overcast. Feels like 76°. High 78°, low 75°.
Monthly outlook for Ko Olina, HI: average high 77.5°, average low 74.2°. That is 1.5° below the climate normal for November. Precipitation is expected on 1 day (about 0.2 inches), against a normal of 4 days and 1.2 inches. The warmest day looks like 18 November (80.7°), the coolest 22 November (72°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 11 November – 20 November | 78.7° | 80.4° | -1° |
| 21 November – 30 November | 75.5° | 79.6° | -2.3° |
| 1 December – 10 December | at normal | 78.8° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Kalaeloa (3 mi).
0.01
Ko Olina, Thursday, 12 November
Light rain. High 78°, low 75°.
0.03Ko Olina, Friday, 13 November
Light rain. High 79°, low 75°.
0.04Ko Olina, Saturday, 14 November
Light rain. High 79°, low 75°.
0.01Ko Olina, Sunday, 15 November
Light rain. High 78°, low 76°.
0.02Ko Olina, Monday, 16 November
Light rain. High 80°, low 76°.
0.01Ko Olina, Tuesday, 17 November
Light rain. High 80°, low 76°.
0Ko Olina, Wednesday, 18 November
Overcast. High 81°, low 76°.
0
Ko Olina, Thursday, 19 November
Clear. High 79°, low 75°.
0.03Ko Olina, Friday, 20 November
Light rain. High 75°, low 72°.
0Ko Olina, Saturday, 21 November
Light rain. High 76°, low 72°.
0Ko Olina, Sunday, 22 November
Clear. High 75°, low 72°.
0
Ko Olina, Monday, 23 November
Mostly clear. High 75°, low 72°.
0Ko Olina, Tuesday, 24 November
Mostly clear. High 76°, low 74°.
0.05Ko Olina, Wednesday, 25 November
Light rain. High 75°, low 74°.
0.02Ko Olina, Thursday, 26 November
Light rain. High 76°, low 73°.
0.11
Ko Olina, Friday, 27 November
Climate normal for this date — 60-year average.
0.06Ko Olina, Saturday, 28 November
Climate normal for this date — 60-year average.
0.04Ko Olina, Sunday, 29 November
Climate normal for this date — 60-year average.
0.07Ko Olina, Monday, 30 November
Climate normal for this date — 60-year average.
0.11Ko Olina, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.04Ko Olina, Wednesday, 2 December
Climate normal for this date — 60-year average.
0.04Ko Olina, Thursday, 3 December
Climate normal for this date — 60-year average.
0.05Ko Olina, Friday, 4 December
Climate normal for this date — 60-year average.
0.05Ko Olina, Saturday, 5 December
Climate normal for this date — 60-year average.
0.17Ko Olina, Sunday, 6 December
Climate normal for this date — 60-year average.
0.07Ko Olina, Monday, 7 December
Climate normal for this date — 60-year average.
0.02Ko Olina, Tuesday, 8 December
Climate normal for this date — 60-year average.
0.08Ko Olina, Wednesday, 9 December
Climate normal for this date — 60-year average.
0.06Ko Olina, Thursday, 10 December
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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