As of 04:23 HST

Weather in Kapolei, HI

77°Current weather

Kapolei, Sunday, 9 August, 04:23

Clear. Feels like 78°. High 82°, low 77°.

Pressure29.94 inHg
Wind2 mph SW
Humidity80%
Visibility6.2 mi
Dew point70°

Monthly outlook for Kapolei, HI: average high 82.8°, average low 77.1°. That is 0.8° below the climate normal for August. Precipitation is expected on 4 days (about 0.3 inches), against a normal of 4 days and 0.5 inches. The warmest day looks like 24 August (83.9°), the coolest 13 August (76.1°).

82.8°/77.1°
Average high / low
−0.8°
Below normal
4 / 4
Wet days / normal
0.3 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
9 August – 18 August82.7°84.2°-0.8°
19 August – 28 August83°84.3°-0.8°
29 August – 7 Septemberat normal84.4°

August records over 66 years

91.6°7 August 2025All-time high
69.6°31 August 2021All-time low
Mon, 1084° / 78°0Partly cloudy
84 °Partly cloudy

Kapolei, Monday, 10 August

Partly cloudy. High 84°, low 78°.

Pressure29.97 inHg
Wind13.4 mph E
Humidity66%
Visibility6.2 mi
Dew point70°
Tue, 1183° / 76°0Overcast
83 °Overcast

Kapolei, Tuesday, 11 August

Overcast. High 83°, low 76°.

Pressure29.94 inHg
Wind15.3 mph E
Humidity62%
Visibility6.2 mi
Dew point68°
Wed, 1282° / 77°0Overcast
82 °Overcast

Kapolei, Wednesday, 12 August

Overcast. High 82°, low 77°.

Pressure29.94 inHg
Wind16.7 mph E
Humidity64%
Visibility6.2 mi
Dew point68°
Thu, 1383° / 76°0Clear
83 °Clear

Kapolei, Thursday, 13 August

Clear. High 83°, low 76°.

Pressure29.97 inHg
Wind20.4 mph NE
Humidity63%
Visibility
Dew point68°
Fri, 1483° / 77°0Mostly clear
83 °Mostly clear

Kapolei, Friday, 14 August

Mostly clear. High 83°, low 77°.

Pressure29.94 inHg
Wind18.6 mph NE
Humidity66%
Visibility
Dew point68°
Sat, 1583° / 78°0Mostly clear
83 °Mostly clear

Kapolei, Saturday, 15 August

Mostly clear. High 83°, low 78°.

Pressure29.97 inHg
Wind18.9 mph NE
Humidity68%
Visibility
Dew point70°
Sun, 1683° / 76°0.06Light rain
83 °Light rain

Kapolei, Sunday, 16 August

Light rain. High 83°, low 76°.

Pressure29.94 inHg
Wind13.6 mph N
Humidity70%
Visibility
Dew point70°
Mon, 1782° / 78°0.16Light rain
82 °Light rain

Kapolei, Monday, 17 August

Light rain. High 82°, low 78°.

Pressure29.88 inHg
Wind13.1 mph W
Humidity80%
Visibility
Dew point73°
Tue, 1882° / 78°0.04Light rain
82 °Light rain

Kapolei, Tuesday, 18 August

Light rain. High 82°, low 78°.

Pressure30.00 inHg
Wind10.2 mph S
Humidity69%
Visibility
Dew point70°
Wed, 1984° / 77°0.01Light rain
84 °Light rain

Kapolei, Wednesday, 19 August

Light rain. High 84°, low 77°.

Pressure30.03 inHg
Wind11.9 mph E
Humidity68%
Visibility
Dew point71°
Thu, 2082° / 77°0.01Light rain
82 °Light rain

Kapolei, Thursday, 20 August

Light rain. High 82°, low 77°.

Pressure30.00 inHg
Wind15.9 mph E
Humidity70%
Visibility
Dew point70°
Fri, 2182° / 76°0Mostly clear
82 °Mostly clear

Kapolei, Friday, 21 August

Mostly clear. High 82°, low 76°.

Pressure29.97 inHg
Wind17 mph E
Humidity67%
Visibility
Dew point68°
Sat, 2283° / 77°0Overcast
83 °Overcast

Kapolei, Saturday, 22 August

Overcast. High 83°, low 77°.

Pressure29.94 inHg
Wind14.8 mph E
Humidity66%
Visibility
Dew point68°
Sun, 2383° / 78°0.04Light rain
83 °Light rain

Kapolei, Sunday, 23 August

Light rain. High 83°, low 78°.

Pressure29.97 inHg
Wind14.6 mph E
Humidity70%
Visibility
Dew point71°
Mon, 2484° / 78°0.02Light rain
84 °Light rain

Kapolei, Monday, 24 August

Light rain. High 84°, low 78°.

Pressure30.00 inHg
Wind16.1 mph E
Humidity72%
Visibility
Dew point72°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2584° / 76°0.03Climate normal
84 °Climate normal

Kapolei, Tuesday, 25 August

Climate normal for this date — 60-year average.

Average high84°
Average low76°
Average precipitation0.03 in
Chance of precipitation13%
Record high89° (2025)
Record low73° (2006)
Wed, 2684° / 76°0.03Climate normal
84 °Climate normal

Kapolei, Wednesday, 26 August

Climate normal for this date — 60-year average.

Average high84°
Average low76°
Average precipitation0.03 in
Chance of precipitation27%
Record high89° (2019)
Record low74° (1975)
Thu, 2784° / 76°0.02Climate normal
84 °Climate normal

Kapolei, Thursday, 27 August

Climate normal for this date — 60-year average.

Average high84°
Average low76°
Average precipitation0.02 in
Chance of precipitation18%
Record high89° (2017)
Record low73° (1975)
Fri, 2884° / 76°0.02Climate normal
84 °Climate normal

Kapolei, Friday, 28 August

Climate normal for this date — 60-year average.

Average high84°
Average low76°
Average precipitation0.02 in
Chance of precipitation30%
Record high89° (2025)
Record low73° (2024)
Sat, 2985° / 76°0.02Climate normal
85 °Climate normal

Kapolei, Saturday, 29 August

Climate normal for this date — 60-year average.

Average high85°
Average low76°
Average precipitation0.02 in
Chance of precipitation20%
Record high90° (2023)
Record low74° (1975)
Sun, 3084° / 76°0.03Climate normal
84 °Climate normal

Kapolei, Sunday, 30 August

Climate normal for this date — 60-year average.

Average high84°
Average low76°
Average precipitation0.03 in
Chance of precipitation28%
Record high91° (2023)
Record low73° (2021)
Mon, 3184° / 76°0.04Climate normal
84 °Climate normal

Kapolei, Monday, 31 August

Climate normal for this date — 60-year average.

Average high84°
Average low76°
Average precipitation0.04 in
Chance of precipitation33%
Record high89° (2019)
Record low70° (2021)
Tue, 0184° / 76°0.04Climate normal
84 °Climate normal

Kapolei, Tuesday, 1 September

Climate normal for this date — 60-year average.

Average high84°
Average low76°
Average precipitation0.04 in
Chance of precipitation38%
Record high90° (2019)
Record low73° (2021)
Wed, 0284° / 76°0.03Climate normal
84 °Climate normal

Kapolei, Wednesday, 2 September

Climate normal for this date — 60-year average.

Average high84°
Average low76°
Average precipitation0.03 in
Chance of precipitation32%
Record high89° (2019)
Record low73° (2025)
Thu, 0384° / 76°0.04Climate normal
84 °Climate normal

Kapolei, Thursday, 3 September

Climate normal for this date — 60-year average.

Average high84°
Average low76°
Average precipitation0.04 in
Chance of precipitation37%
Record high89° (2024)
Record low73° (2023)
Fri, 0484° / 76°0.04Climate normal
84 °Climate normal

Kapolei, Friday, 4 September

Climate normal for this date — 60-year average.

Average high84°
Average low76°
Average precipitation0.04 in
Chance of precipitation32%
Record high89° (2025)
Record low72° (2023)
Sat, 0584° / 76°0.03Climate normal
84 °Climate normal

Kapolei, Saturday, 5 September

Climate normal for this date — 60-year average.

Average high84°
Average low76°
Average precipitation0.03 in
Chance of precipitation32%
Record high90° (2019)
Record low72° (2017)
Sun, 0684° / 76°0.02Climate normal
84 °Climate normal

Kapolei, Sunday, 6 September

Climate normal for this date — 60-year average.

Average high84°
Average low76°
Average precipitation0.02 in
Chance of precipitation12%
Record high89° (2023)
Record low71° (2023)
Mon, 0785° / 76°0.02Climate normal
85 °Climate normal

Kapolei, Monday, 7 September

Climate normal for this date — 60-year average.

Average high85°
Average low76°
Average precipitation0.02 in
Chance of precipitation22%
Record high89° (2019)
Record low71° (2025)

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 Kapolei, 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 Kapolei, 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.