Today | Weather | Monday, October 12, 2026

Weather in Waipahu, Hawaii

03:10 PM
Now
Partly Sunny with Showers
88° F
Feels Like 91°
Precipitation 54 %
Wind 6 mph
UV Index (0 - 11+) 3
Humidity 49 %
Today
Partly Sunny with Showers
Day 90°
Night 70°
Precipitation 55 %
Wind 6 mph
UV Index (0 - 11+) 8

Warning: High UV Index Today: 8

High risk of harm from unprotected sun exposure. Take precautions: wear a hat, sunglasses, and apply sunscreen regularly if you’ll be outdoors for extended periods.

Waipahu Weather Forecast Updated

Air Quality in Waipahu

NOW
30 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 1.76 µg/m³
PM10 4.21 µg/m³
O3 0.032 ppm
NO2 0 ppb
SO2 0.1 ppb
CO 0.08 ppm
NH3 0 µg/m³
NO 0.01 µg/m³
PM2.5 – Fine particles <2.5μm
PM10 – Inhalable particles <10μm
O3 – Ozone
NO2 – Nitrogen dioxide
SO2 – Sulfur dioxide
CO – Carbon monoxide
NH3 – Ammonia
NO – Nitric oxide

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

Show raw pollutant concentrations (µg/m³)
PM2.5 – 1.76 µg/m³
PM10 – 4.21 µg/m³
O3 – 63 µg/m³
NO2 – 0.06 µg/m³
SO2 – 0.28 µg/m³
CO – 87.01 µg/m³
NH3 – 0 µg/m³
NO – 0.01 µg/m³