As of 11:57 HST

Weather in Aiea, HI

86°Current weather

Aiea, Saturday, 8 August, 11:57

Mostly clear. Feels like 90°. High 85°, low 76°.

Pressure30.00 inHg
Wind20 mph E
Humidity58%
Visibility6.2 mi
Dew point69°

Monthly outlook for Aiea, HI: average high 81.6°, average low 76.3°. That is 1.5° below the climate normal for August. Precipitation is expected on 7 days (about 2.1 inches), against a normal of 4 days and 0.5 inches. The warmest day looks like 8 August (85.3°), the coolest 19 August (74.9°).

81.6°/76.3°
Average high / low
−1.5°
Below normal
7 / 4
Wet days / normal
2.1 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
8 August – 17 August81.5°84.2°-1.5°
18 August – 27 August81.7°84.4°-1.5°
28 August – 6 Septemberat normal84.5°

August records over 66 years

91.8°7 August 2025All-time high
69.8°31 August 2021All-time low

Climate normals and records are computed from the nearest reference point — Waipahu (6 mi).

Sun, 0982° / 76°0Partly cloudy
82 °Partly cloudy

Aiea, Sunday, 9 August

Partly cloudy. High 82°, low 76°.

Pressure30.00 inHg
Wind14.4 mph NE
Humidity71%
Visibility6.2 mi
Dew point70°
Mon, 1083° / 77°0Mostly clear
83 °Mostly clear

Aiea, Monday, 10 August

Mostly clear. High 83°, low 77°.

Pressure29.97 inHg
Wind12.8 mph NE
Humidity67%
Visibility6.2 mi
Dew point70°
Tue, 1182° / 76°0Mostly clear
82 °Mostly clear

Aiea, Tuesday, 11 August

Mostly clear. High 82°, low 76°.

Pressure29.94 inHg
Wind14.9 mph E
Humidity63%
Visibility6.2 mi
Dew point68°
Wed, 1281° / 75°0.02Light rain
81 °Light rain

Aiea, Wednesday, 12 August

Light rain. High 81°, low 75°.

Pressure29.97 inHg
Wind16.5 mph NE
Humidity66%
Visibility
Dew point66°
Thu, 1381° / 76°0Partly cloudy
81 °Partly cloudy

Aiea, Thursday, 13 August

Partly cloudy. High 81°, low 76°.

Pressure29.94 inHg
Wind20 mph NE
Humidity67%
Visibility
Dew point68°
Fri, 1481° / 76°0Mostly clear
81 °Mostly clear

Aiea, Friday, 14 August

Mostly clear. High 81°, low 76°.

Pressure29.91 inHg
Wind22.4 mph NE
Humidity67%
Visibility
Dew point68°
Sat, 1580° / 77°0.12Light rain
80 °Light rain

Aiea, Saturday, 15 August

Light rain. High 80°, low 77°.

Pressure29.91 inHg
Wind32.1 mph NE
Humidity77%
Visibility
Dew point72°
Sun, 1681° / 77°1.63Heavy rain
81 °Heavy rain

Aiea, Sunday, 16 August

Heavy rain. High 81°, low 77°.

Pressure29.85 inHg
Wind40.5 mph E
Humidity88%
Visibility
Dew point74°
Mon, 1778° / 75°0.05Light rain
78 °Light rain

Aiea, Monday, 17 August

Light rain. High 78°, low 75°.

Pressure30.00 inHg
Wind16.7 mph NE
Humidity79%
Visibility
Dew point71°
Tue, 1880° / 75°0.06Light rain
80 °Light rain

Aiea, Tuesday, 18 August

Light rain. High 80°, low 75°.

Pressure30.00 inHg
Wind18.5 mph NE
Humidity75%
Visibility
Dew point69°
Wed, 1980° / 75°0.07Light rain
80 °Light rain

Aiea, Wednesday, 19 August

Light rain. High 80°, low 75°.

Pressure30.00 inHg
Wind13.7 mph NE
Humidity73%
Visibility
Dew point69°
Thu, 2082° / 76°0.07Light rain
82 °Light rain

Aiea, Thursday, 20 August

Light rain. High 82°, low 76°.

Pressure30.00 inHg
Wind7.1 mph E
Humidity71%
Visibility
Dew point71°
Fri, 2183° / 77°0.05Light rain
83 °Light rain

Aiea, Friday, 21 August

Light rain. High 83°, low 77°.

Pressure30.03 inHg
Wind13.8 mph E
Humidity75%
Visibility
Dew point73°
Sat, 2283° / 78°0.02Light rain
83 °Light rain

Aiea, Saturday, 22 August

Light rain. High 83°, low 78°.

Pressure30.00 inHg
Wind15.9 mph E
Humidity73%
Visibility
Dew point72°
Sun, 2383° / 78°0Overcast
83 °Overcast

Aiea, Sunday, 23 August

Overcast. High 83°, low 78°.

Pressure30.00 inHg
Wind15.8 mph E
Humidity67%
Visibility
Dew point69°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2484° / 76°0.07Climate normal
84 °Climate normal

Aiea, Monday, 24 August

Climate normal for this date — 60-year average.

Average high84°
Average low76°
Average precipitation0.07 in
Chance of precipitation30%
Record high89° (2019)
Record low74° (1972)
Tue, 2584° / 76°0.03Climate normal
84 °Climate normal

Aiea, 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

Aiea, Wednesday, 26 August

Climate normal for this date — 60-year average.

Average high84°
Average low76°
Average precipitation0.03 in
Chance of precipitation27%
Record high90° (2019)
Record low73° (1975)
Thu, 2784° / 76°0.02Climate normal
84 °Climate normal

Aiea, 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, 2885° / 76°0.02Climate normal
85 °Climate normal

Aiea, Friday, 28 August

Climate normal for this date — 60-year average.

Average high85°
Average low76°
Average precipitation0.02 in
Chance of precipitation30%
Record high90° (2025)
Record low73° (2024)
Sat, 2985° / 76°0.02Climate normal
85 °Climate normal

Aiea, 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, 3085° / 76°0.03Climate normal
85 °Climate normal

Aiea, Sunday, 30 August

Climate normal for this date — 60-year average.

Average high85°
Average low76°
Average precipitation0.03 in
Chance of precipitation28%
Record high91° (2023)
Record low74° (2021)
Mon, 3184° / 76°0.04Climate normal
84 °Climate normal

Aiea, 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, 0185° / 76°0.04Climate normal
85 °Climate normal

Aiea, Tuesday, 1 September

Climate normal for this date — 60-year average.

Average high85°
Average low76°
Average precipitation0.04 in
Chance of precipitation38%
Record high90° (2019)
Record low74° (2021)
Wed, 0285° / 76°0.03Climate normal
85 °Climate normal

Aiea, Wednesday, 2 September

Climate normal for this date — 60-year average.

Average high85°
Average low76°
Average precipitation0.03 in
Chance of precipitation32%
Record high89° (2019)
Record low73° (2025)
Thu, 0384° / 76°0.04Climate normal
84 °Climate normal

Aiea, 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

Aiea, Friday, 4 September

Climate normal for this date — 60-year average.

Average high84°
Average low76°
Average precipitation0.04 in
Chance of precipitation32%
Record high90° (2025)
Record low72° (2023)
Sat, 0584° / 76°0.03Climate normal
84 °Climate normal

Aiea, 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

Aiea, 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)

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 Aiea, 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 Aiea, 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.