What is the air quality in Waipahu today?

The current Air Quality Index (AQI) in Waipahu is 14 (Good). PM2.5 concentration is 3.26 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 29.9 (Extreme).

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

19 10am

14 1pm

16 4pm

18 7pm

19 10pm

21 1am

19 4am

21 7am

Station readings 25h ago

AQI 21

PM2.5 5.0 µg/m³ · 25h ago

Air Quality Index Trend

40h · 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

29.9

UV Extreme

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

3.26 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Waipahu?

Temperature & Precipitation

PM2.5 Trend

40h · 1 station

PM2.53.26 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX29.9

Extreme

Station readings (2 stations within 25 km)

3.26

Median

3.25

Average

3.1

Low

3.4

High

PM2.5 µg/m³ · Model: 6.25 · Bias: +3.0

Both models agree Avg diff: 2.1°C

Where are air quality stations near Waipahu?

Kapolei, Hawaii, USA

10.8 km PM2.5: 7.0 µg/m³

Sand Island, Hawaii, USA

17.0 km PM2.5: 13.5 µg/m³

Honolulu, Hawaii, USA

18.2 km PM2.5: 0.7 µg/m³

What cities are near Waipahu?

14 Pearl City 14 ‘Ewa Gentry 14 Mililani Town 14 Kapolei 14 Joint Base Pearl Harbor Hickam 14 ‘Ewa Beach 14 Makakilo 14 Makakilo City 14 Airport 14 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 2026-06-08T23:09 UTC.