As of 20:07 HST

Weather in Waipio, HI

78°Current weather

Waipio, Saturday, 8 August, 20:07

Partly cloudy. Feels like 79°. High 83°, low 76°.

Pressure30.00 inHg
Wind2 mph E
Humidity74%
Visibility6.2 mi
Dew point70°

Monthly outlook for Waipio, HI: average high 82.6°, average low 75.6°. That is 0.6° below the climate normal for August. Precipitation is expected on 6 days (about 1.8 inches), against a normal of 4 days and 0.5 inches. The warmest day looks like 17 August (85.3°), the coolest 12 August (74.1°).

82.6°/75.6°
Average high / low
−0.6°
Below normal
6 / 4
Wet days / normal
1.8 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
8 August – 17 August82.8°83.6°-0.5°
18 August – 27 August82.3°83.7°-0.8°
28 August – 6 Septemberat normal83.9°

August records over 66 years

91.8°8 August 2019All-time high
67.8°31 August 2021All-time low

Climate normals and records are computed from the nearest reference point — Waikele (1 mi).

Sun, 0984° / 76°0Overcast
84 °Overcast

Waipio, Sunday, 9 August

Overcast. High 84°, low 76°.

Pressure30.00 inHg
Wind9.7 mph E
Humidity64%
Visibility6.2 mi
Dew point69°
Mon, 1084° / 77°0Light rain
84 °Light rain

Waipio, Monday, 10 August

Light rain. High 84°, low 77°.

Pressure29.97 inHg
Wind9.8 mph NE
Humidity59%
Visibility6.2 mi
Dew point68°
Tue, 1183° / 74°0Overcast
83 °Overcast

Waipio, Tuesday, 11 August

Overcast. High 83°, low 74°.

Pressure29.97 inHg
Wind7.9 mph E
Humidity49%
Visibility6.2 mi
Dew point63°
Wed, 1283° / 74°0Partly cloudy
83 °Partly cloudy

Waipio, Wednesday, 12 August

Partly cloudy. High 83°, low 74°.

Pressure29.97 inHg
Wind9.7 mph E
Humidity52%
Visibility6.2 mi
Dew point63°
Thu, 1383° / 75°0Overcast
83 °Overcast

Waipio, Thursday, 13 August

Overcast. High 83°, low 75°.

Pressure29.94 inHg
Wind18 mph NE
Humidity60%
Visibility
Dew point66°
Fri, 1483° / 76°0Mostly clear
83 °Mostly clear

Waipio, Friday, 14 August

Mostly clear. High 83°, low 76°.

Pressure29.94 inHg
Wind19.7 mph NE
Humidity63%
Visibility
Dew point67°
Sat, 1582° / 76°0.08Light rain
82 °Light rain

Waipio, Saturday, 15 August

Light rain. High 82°, low 76°.

Pressure29.94 inHg
Wind20.2 mph NE
Humidity71%
Visibility
Dew point70°
Sun, 1677° / 76°1.49Heavy rain
77 °Heavy rain

Waipio, Sunday, 16 August

Heavy rain. High 77°, low 76°.

Pressure29.44 inHg
Wind32.6 mph N
Humidity92%
Visibility
Dew point74°
Mon, 1785° / 76°0.08Light rain
85 °Light rain

Waipio, Monday, 17 August

Light rain. High 85°, low 76°.

Pressure30.03 inHg
Wind12.6 mph S
Humidity71%
Visibility
Dew point72°
Tue, 1881° / 76°0.02Light rain
81 °Light rain

Waipio, Tuesday, 18 August

Light rain. High 81°, low 76°.

Pressure30.06 inHg
Wind15.3 mph NE
Humidity67%
Visibility
Dew point67°
Wed, 1979° / 75°0.05Light rain
79 °Light rain

Waipio, Wednesday, 19 August

Light rain. High 79°, low 75°.

Pressure30.03 inHg
Wind18.4 mph NE
Humidity75%
Visibility
Dew point70°
Thu, 2082° / 75°0Light rain
82 °Light rain

Waipio, Thursday, 20 August

Light rain. High 82°, low 75°.

Pressure30.00 inHg
Wind11.2 mph E
Humidity59%
Visibility
Dew point64°
Fri, 2183° / 76°0.06Light rain
83 °Light rain

Waipio, Friday, 21 August

Light rain. High 83°, low 76°.

Pressure30.00 inHg
Wind10.4 mph E
Humidity71%
Visibility
Dew point71°
Sat, 2284° / 76°0.04Light rain
84 °Light rain

Waipio, Saturday, 22 August

Light rain. High 84°, low 76°.

Pressure30.03 inHg
Wind11.3 mph E
Humidity71%
Visibility
Dew point72°
Sun, 2384° / 77°0Light rain
84 °Light rain

Waipio, Sunday, 23 August

Light rain. High 84°, low 77°.

Pressure30.00 inHg
Wind16.2 mph E
Humidity63%
Visibility
Dew point68°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2484° / 75°0.07Climate normal
84 °Climate normal

Waipio, Monday, 24 August

Climate normal for this date — 60-year average.

Average high84°
Average low75°
Average precipitation0.07 in
Chance of precipitation30%
Record high90° (2019)
Record low72° (2022)
Tue, 2584° / 75°0.03Climate normal
84 °Climate normal

Waipio, Tuesday, 25 August

Climate normal for this date — 60-year average.

Average high84°
Average low75°
Average precipitation0.03 in
Chance of precipitation17%
Record high90° (2025)
Record low71° (2025)
Wed, 2684° / 75°0.03Climate normal
84 °Climate normal

Waipio, Wednesday, 26 August

Climate normal for this date — 60-year average.

Average high84°
Average low75°
Average precipitation0.03 in
Chance of precipitation27%
Record high90° (2019)
Record low72° (2025)
Thu, 2784° / 75°0.03Climate normal
84 °Climate normal

Waipio, Thursday, 27 August

Climate normal for this date — 60-year average.

Average high84°
Average low75°
Average precipitation0.03 in
Chance of precipitation22%
Record high90° (2019)
Record low71° (2024)
Fri, 2884° / 75°0.03Climate normal
84 °Climate normal

Waipio, Friday, 28 August

Climate normal for this date — 60-year average.

Average high84°
Average low75°
Average precipitation0.03 in
Chance of precipitation28%
Record high91° (2019)
Record low71° (2024)
Sat, 2984° / 75°0.02Climate normal
84 °Climate normal

Waipio, Saturday, 29 August

Climate normal for this date — 60-year average.

Average high84°
Average low75°
Average precipitation0.02 in
Chance of precipitation20%
Record high91° (2019)
Record low71° (2025)
Sun, 3084° / 75°0.03Climate normal
84 °Climate normal

Waipio, Sunday, 30 August

Climate normal for this date — 60-year average.

Average high84°
Average low75°
Average precipitation0.03 in
Chance of precipitation28%
Record high90° (2023)
Record low70° (2025)
Mon, 3184° / 75°0.04Climate normal
84 °Climate normal

Waipio, Monday, 31 August

Climate normal for this date — 60-year average.

Average high84°
Average low75°
Average precipitation0.04 in
Chance of precipitation33%
Record high90° (2019)
Record low68° (2021)
Tue, 0184° / 75°0.04Climate normal
84 °Climate normal

Waipio, Tuesday, 1 September

Climate normal for this date — 60-year average.

Average high84°
Average low75°
Average precipitation0.04 in
Chance of precipitation38%
Record high90° (2019)
Record low69° (2021)
Wed, 0284° / 75°0.03Climate normal
84 °Climate normal

Waipio, Wednesday, 2 September

Climate normal for this date — 60-year average.

Average high84°
Average low75°
Average precipitation0.03 in
Chance of precipitation32%
Record high90° (2020)
Record low69° (2025)
Thu, 0384° / 75°0.04Climate normal
84 °Climate normal

Waipio, Thursday, 3 September

Climate normal for this date — 60-year average.

Average high84°
Average low75°
Average precipitation0.04 in
Chance of precipitation38%
Record high90° (2019)
Record low70° (2023)
Fri, 0484° / 75°0.04Climate normal
84 °Climate normal

Waipio, Friday, 4 September

Climate normal for this date — 60-year average.

Average high84°
Average low75°
Average precipitation0.04 in
Chance of precipitation33%
Record high91° (2025)
Record low68° (2023)
Sat, 0584° / 75°0.03Climate normal
84 °Climate normal

Waipio, Saturday, 5 September

Climate normal for this date — 60-year average.

Average high84°
Average low75°
Average precipitation0.03 in
Chance of precipitation35%
Record high91° (2023)
Record low69° (2023)
Sun, 0684° / 75°0.02Climate normal
84 °Climate normal

Waipio, Sunday, 6 September

Climate normal for this date — 60-year average.

Average high84°
Average low75°
Average precipitation0.02 in
Chance of precipitation13%
Record high89° (2024)
Record low68° (2023)

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 Waipio, 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 Waipio, 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.