Weather in Ewa Beach, HI
Ewa Beach, Saturday, 8 August, 13:15
Partly cloudy. Feels like 91°. High 87°, low 78°.
Monthly outlook for Ewa Beach, HI: average high 83.1°, average low 77.6°. That is 0.6° below the climate normal for August. Precipitation is expected on 2 days (about 1.7 inches), against a normal of 4 days and 0.5 inches. The warmest day looks like 8 August (86.9°), the coolest 19 August (76.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 8 August – 17 August | 83° | 84.2° | -0.6° |
| 18 August – 27 August | 83.3° | 84.3° | -0.6° |
| 28 August – 6 September | at normal | 84.3° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Kapolei (4 mi).
0
Ewa Beach, Sunday, 9 August
Mostly clear. High 83°, low 78°.
0Ewa Beach, Monday, 10 August
Mostly clear. High 84°, low 78°.
0Ewa Beach, Tuesday, 11 August
Mostly clear. High 83°, low 77°.
0.01
Ewa Beach, Wednesday, 12 August
Light rain. High 82°, low 77°.
0Ewa Beach, Thursday, 13 August
Partly cloudy. High 83°, low 78°.
0
Ewa Beach, Friday, 14 August
Clear. High 83°, low 77°.
0.05Ewa Beach, Saturday, 15 August
Light rain. High 82°, low 78°.
1.56Ewa Beach, Sunday, 16 August
Heavy rain. High 82°, low 78°.
0.02Ewa Beach, Monday, 17 August
Light rain. High 80°, low 77°.
0.03Ewa Beach, Tuesday, 18 August
Light rain. High 82°, low 76°.
0.01Ewa Beach, Wednesday, 19 August
Light rain. High 82°, low 76°.
0.02Ewa Beach, Thursday, 20 August
Light rain. High 84°, low 77°.
0Ewa Beach, Friday, 21 August
Light rain. High 85°, low 78°.
0Ewa Beach, Saturday, 22 August
Light rain. High 84°, low 79°.
0
Ewa Beach, Sunday, 23 August
Overcast. High 84°, low 79°.
0.07Ewa Beach, Monday, 24 August
Climate normal for this date — 60-year average.
0.03Ewa Beach, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.03Ewa Beach, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.02Ewa Beach, Thursday, 27 August
Climate normal for this date — 60-year average.
0.02Ewa Beach, Friday, 28 August
Climate normal for this date — 60-year average.
0.02Ewa Beach, Saturday, 29 August
Climate normal for this date — 60-year average.
0.03Ewa Beach, Sunday, 30 August
Climate normal for this date — 60-year average.
0.04
Ewa Beach, Monday, 31 August
Climate normal for this date — 60-year average.
0.04Ewa Beach, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.03Ewa Beach, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.04Ewa Beach, Thursday, 3 September
Climate normal for this date — 60-year average.
0.04Ewa Beach, Friday, 4 September
Climate normal for this date — 60-year average.
0.03Ewa Beach, Saturday, 5 September
Climate normal for this date — 60-year average.
0.02Ewa Beach, 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 Ewa Beach, 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 Ewa Beach, 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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