As of 16:41 HST

Weather in Waiau, HI

85°Current weather

Waiau, Saturday, 8 August, 16:41

Mostly clear. Feels like 88°. High 85°, low 77°.

Pressure29.97 inHg
Wind17 mph E
Humidity60%
Visibility6.2 mi
Dew point69°

Monthly outlook for Waiau, HI: average high 82.8°, average low 77°. That is 0.5° below the climate normal for August. Precipitation is expected on 6 days (about 1.9 inches), against a normal of 4 days and 0.5 inches. The warmest day looks like 17 August (84.7°), the coolest 12 August (75.7°).

82.8°/77°
Average high / low
−0.5°
Below normal
6 / 4
Wet days / normal
1.9 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
8 August – 17 August83°83.6°-0.4°
18 August – 27 August82.5°83.7°-0.7°
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 (3 mi).

Sun, 0983° / 77°0Partly cloudy
83 °Partly cloudy

Waiau, Sunday, 9 August

Partly cloudy. High 83°, low 77°.

Pressure30.00 inHg
Wind14.7 mph E
Humidity68%
Visibility6.2 mi
Dew point70°
Mon, 1084° / 78°0Mostly clear
84 °Mostly clear

Waiau, Monday, 10 August

Mostly clear. High 84°, low 78°.

Pressure29.97 inHg
Wind13.5 mph NE
Humidity64%
Visibility6.2 mi
Dew point69°
Tue, 1183° / 76°0Overcast
83 °Overcast

Waiau, Tuesday, 11 August

Overcast. High 83°, low 76°.

Pressure29.94 inHg
Wind13.7 mph E
Humidity58%
Visibility6.2 mi
Dew point66°
Wed, 1283° / 76°0Partly cloudy
83 °Partly cloudy

Waiau, Wednesday, 12 August

Partly cloudy. High 83°, low 76°.

Pressure29.94 inHg
Wind14.8 mph E
Humidity59%
Visibility6.2 mi
Dew point66°
Thu, 1383° / 77°0Overcast
83 °Overcast

Waiau, Thursday, 13 August

Overcast. High 83°, low 77°.

Pressure29.94 inHg
Wind19.1 mph NE
Humidity63%
Visibility
Dew point68°
Fri, 1483° / 77°0Mostly clear
83 °Mostly clear

Waiau, Friday, 14 August

Mostly clear. High 83°, low 77°.

Pressure29.94 inHg
Wind20.9 mph NE
Humidity65%
Visibility
Dew point68°
Sat, 1582° / 77°0.08Light rain
82 °Light rain

Waiau, Saturday, 15 August

Light rain. High 82°, low 77°.

Pressure29.94 inHg
Wind21.5 mph NE
Humidity73%
Visibility
Dew point72°
Sun, 1678° / 77°1.48Heavy rain
78 °Heavy rain

Waiau, Sunday, 16 August

Heavy rain. High 78°, low 77°.

Pressure29.41 inHg
Wind33.7 mph N
Humidity91%
Visibility
Dew point75°
Mon, 1785° / 77°0.08Light rain
85 °Light rain

Waiau, Monday, 17 August

Light rain. High 85°, low 77°.

Pressure30.03 inHg
Wind13.7 mph S
Humidity74%
Visibility
Dew point73°
Tue, 1882° / 77°0.03Light rain
82 °Light rain

Waiau, Tuesday, 18 August

Light rain. High 82°, low 77°.

Pressure30.06 inHg
Wind16.8 mph NE
Humidity68%
Visibility
Dew point68°
Wed, 1980° / 76°0.05Light rain
80 °Light rain

Waiau, Wednesday, 19 August

Light rain. High 80°, low 76°.

Pressure30.03 inHg
Wind19.9 mph NE
Humidity76%
Visibility
Dew point71°
Thu, 2082° / 76°0Light rain
82 °Light rain

Waiau, Thursday, 20 August

Light rain. High 82°, low 76°.

Pressure30.00 inHg
Wind12.2 mph E
Humidity61%
Visibility
Dew point66°
Fri, 2183° / 77°0.07Light rain
83 °Light rain

Waiau, Friday, 21 August

Light rain. High 83°, low 77°.

Pressure30.00 inHg
Wind11.3 mph E
Humidity74%
Visibility
Dew point73°
Sat, 2284° / 78°0.04Light rain
84 °Light rain

Waiau, Saturday, 22 August

Light rain. High 84°, low 78°.

Pressure30.03 inHg
Wind12.3 mph NE
Humidity73%
Visibility
Dew point73°
Sun, 2384° / 78°0Light rain
84 °Light rain

Waiau, Sunday, 23 August

Light rain. High 84°, low 78°.

Pressure30.00 inHg
Wind17.5 mph E
Humidity65%
Visibility
Dew point69°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2484° / 75°0.07Climate normal
84 °Climate normal

Waiau, 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

Waiau, 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

Waiau, 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

Waiau, 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

Waiau, 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

Waiau, 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

Waiau, 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

Waiau, 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

Waiau, 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

Waiau, 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

Waiau, 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

Waiau, 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

Waiau, 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

Waiau, 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 Waiau, 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 Waiau, 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.