What is the air quality in Waipahu today?

The current Air Quality Index (AQI) in Waipahu is 25 (Good). PM2.5 concentration is 6.13 µg/m³.

What is the temperature in Waipahu right now?

The current temperature in Waipahu is 25.0°C (feels like 25.0°C). Humidity is 68.7% and wind speed is 77.1 km/h.

Is it safe to go outside in Waipahu?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 9.4 (Very High).

Air Quality in Waipahu, United States

Drizzle

25.0°C · 68.7% humidity

25.0°

Feels 25.0°

Good

Air quality is satisfactory. Enjoy outdoor activities.

2 stations

Nearby Monitoring Stations

AQI Forecast Calibrated

23 1pm

25 4pm

21 7pm

21 10pm

23 1am

21 4am

23 7am

23 10am

Station readings 28h ago

AQI 21

PM2.5 5.0 µg/m³ · 28h ago

Air Quality Index Trend

38h · 1 stn

View full history →

Waipahu's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.

68.7%

Humidity

77.1 km/h

Wind ENE

1017.6 hPa

Pressure

9.4

UV Very High

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

6.13 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Waipahu?

Temperature & Precipitation

PM2.5 Trend

38h · 1 station

PM2.56.13 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX9.4

Very High

Station readings (2 stations within 25 km)

6.13

Median

6.15

Average

5.8

Low

6.5

High

PM2.5 µg/m³ · Model: 6.0 · Bias: -0.1

What is the 7-day forecast for Waipahu?

06-09

25.0° 20.7°

0.81 mm

06-10

26.6° 22.1°

1.0 mm

06-11

27.1° 21.3°

0.5 mm

06-12

25.4° 21.5°

1.19 mm

06-13

25.7° 20.2°

0.81 mm

06-14

25.8° 21.5°

0.81 mm

06-15

25.5° 20.8°

0.25 mm

Both models agree Avg diff: 2.1°C

Where are air quality stations near Waipahu?

Kapolei, Hawaii, USA

10.8 km PM2.5: 7.4 µg/m³

Sand Island, Hawaii, USA

17.0 km PM2.5: 11.0 µg/m³

Honolulu, Hawaii, USA

18.2 km PM2.5: 0.7 µg/m³

What cities are near Waipahu?

25 Pearl City 25 ‘Ewa Gentry 25 Mililani Town 25 Kapolei 25 Joint Base Pearl Harbor Hickam 25 ‘Ewa Beach 25 Makakilo 25 Makakilo City 25 Airport 25 Aliamanu / Salt Lakes / Foster Village

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Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-06-09T02:53 UTC.