Weather in Haleiwa, HI
Haleiwa, Saturday, 8 August, 22:02
Mostly clear. Feels like 79°. High 83°, low 77°.
Monthly outlook for Haleiwa, HI: average high 82.5°, average low 77.1°. That is 0.5° above the climate normal for August. Precipitation is expected on 6 days (about 0.5 inches), against a normal of 4 days and 0.6 inches. The warmest day looks like 17 August (84.9°), the coolest 18 August (76.4°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 8 August – 17 August | 82.4° | 81.5° | +0.5° |
| 18 August – 27 August | 82.7° | 81.6° | +0.6° |
| 28 August – 6 September | at normal | 81.8° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Schofield Barracks (7 mi).
0
Haleiwa, Sunday, 9 August
Overcast. High 82°, low 77°.
0
Haleiwa, Monday, 10 August
Partly cloudy. High 83°, low 78°.
0Haleiwa, Tuesday, 11 August
Overcast. High 83°, low 77°.
0
Haleiwa, Wednesday, 12 August
Light rain. High 82°, low 77°.
0.02Haleiwa, Thursday, 13 August
Light rain. High 83°, low 77°.
0Haleiwa, Friday, 14 August
Partly cloudy. High 82°, low 77°.
0Haleiwa, Saturday, 15 August
Partly cloudy. High 82°, low 77°.
0.15Haleiwa, Sunday, 16 August
Light rain. High 79°, low 77°.
0.07Haleiwa, Monday, 17 August
Light rain. High 85°, low 77°.
0.02Haleiwa, Tuesday, 18 August
Light rain. High 84°, low 76°.
0.05Haleiwa, Wednesday, 19 August
Light rain. High 83°, low 77°.
0.05Haleiwa, Thursday, 20 August
Light rain. High 83°, low 77°.
0.08Haleiwa, Friday, 21 August
Light rain. High 83°, low 79°.
0.04Haleiwa, Saturday, 22 August
Light rain. High 82°, low 78°.
0.02Haleiwa, Sunday, 23 August
Light rain. High 81°, low 77°.
0.07Haleiwa, Monday, 24 August
Climate normal for this date — 60-year average.
0.04
Haleiwa, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.04Haleiwa, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.03Haleiwa, Thursday, 27 August
Climate normal for this date — 60-year average.
0.03Haleiwa, Friday, 28 August
Climate normal for this date — 60-year average.
0.02Haleiwa, Saturday, 29 August
Climate normal for this date — 60-year average.
0.03Haleiwa, Sunday, 30 August
Climate normal for this date — 60-year average.
0.04
Haleiwa, Monday, 31 August
Climate normal for this date — 60-year average.
0.04Haleiwa, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.03Haleiwa, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.05Haleiwa, Thursday, 3 September
Climate normal for this date — 60-year average.
0.04Haleiwa, Friday, 4 September
Climate normal for this date — 60-year average.
0.03Haleiwa, Saturday, 5 September
Climate normal for this date — 60-year average.
0.02Haleiwa, Sunday, 6 September
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 Haleiwa, 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 Haleiwa, 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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