Weather in Honolulu, HI
Honolulu, Saturday, 8 August, 09:15
Mostly clear. Feels like 84°. High 81°, low 77°.
Monthly outlook for Honolulu, HI: average high 80.4°, average low 76.9°. That is 0.6° below the climate normal for August. Precipitation is expected on 7 days (about 2.0 inches), against a normal of 4 days and 0.5 inches. The warmest day looks like 21 August (81.5°), the coolest 18 August (75.6°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 8 August – 17 August | 80.3° | 81.5° | -0.7° |
| 18 August – 27 August | 80.7° | 81.6° | -0.5° |
| 28 August – 6 September | at normal | 81.8° | — |
August records over 66 years
0
Honolulu, Sunday, 9 August
Partly cloudy. High 80°, low 77°.
0Honolulu, Monday, 10 August
Partly cloudy. High 81°, low 77°.
0
Honolulu, Tuesday, 11 August
Clear. High 80°, low 77°.
0.01
Honolulu, Wednesday, 12 August
Light rain. High 80°, low 76°.
0Honolulu, Thursday, 13 August
Partly cloudy. High 80°, low 77°.
0Honolulu, Friday, 14 August
Mostly clear. High 80°, low 77°.
0.12Honolulu, Saturday, 15 August
Light rain. High 80°, low 77°.
1.54Honolulu, Sunday, 16 August
Heavy rain. High 81°, low 77°.
0.05Honolulu, Monday, 17 August
Light rain. High 79°, low 76°.
0.06Honolulu, Tuesday, 18 August
Light rain. High 79°, low 76°.
0.07Honolulu, Wednesday, 19 August
Light rain. High 79°, low 76°.
0.08Honolulu, Thursday, 20 August
Light rain. High 81°, low 77°.
0.06Honolulu, Friday, 21 August
Light rain. High 82°, low 78°.
0.02Honolulu, Saturday, 22 August
Light rain. High 81°, low 78°.
0
Honolulu, Sunday, 23 August
Overcast. High 81°, low 78°.
0.07Honolulu, Monday, 24 August
Climate normal for this date — 60-year average.
0.03Honolulu, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.04Honolulu, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.03Honolulu, Thursday, 27 August
Climate normal for this date — 60-year average.
0.02Honolulu, Friday, 28 August
Climate normal for this date — 60-year average.
0.02Honolulu, Saturday, 29 August
Climate normal for this date — 60-year average.
0.02Honolulu, Sunday, 30 August
Climate normal for this date — 60-year average.
0.04Honolulu, Monday, 31 August
Climate normal for this date — 60-year average.
0.04
Honolulu, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.03Honolulu, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.04Honolulu, Thursday, 3 September
Climate normal for this date — 60-year average.
0.04Honolulu, Friday, 4 September
Climate normal for this date — 60-year average.
0.03Honolulu, Saturday, 5 September
Climate normal for this date — 60-year average.
0.02Honolulu, 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 Honolulu, 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 Honolulu, 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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