Hilo air quality · Hawaii, United States
Clear air is not just pleasant, it is preventive health
US AQI 27 (Good) in Hilo, from 1 AirNow monitoring station. Main pollutant: PM2.5.
Updated
Pollutants in Hilo
- PM2.527AQI
- SO₂1AQI
US values are per-pollutant AQI from the highest-reading monitor near Hilo (Hilo).
Is it safe outside in Hilo right now?
Air quality is satisfactory and poses little or no risk.
Walking and commuting
Go aheadEnjoy it.
Running and jogging
Go aheadA great time to run outdoors.
Cycling
Go aheadRide freely.
Children playing outside
Go aheadNo limits.
Older adults and heart or lung conditions
Go aheadNo limits.
Open windows
Go aheadAir out your home.
Mask outdoors
Not neededNot needed.
Air purifier indoors
Not neededNot needed.
Based on the US EPA Air Quality Guide, applied to the current US AQI category. If you have symptoms, follow your doctor's advice.
What US AQI 0–50 means for your health →
Hilo air quality history
Daily average, 36 days- 22average daily US AQI over 36 days
- 55worst day, 8 October
- 12cleanest day, 25 September
- 0days at Unhealthy or worse
The last 7 days averaged 22, better than the week before (29). 35 of the last 36 days were Good.
Weather in Hilo
No active National Weather Service alerts for Hilo.
| Day | Forecast | High | Low | Rain |
|---|---|---|---|---|
| Mon 19 | Rain Showers | 81°F | 70°F | 87% |
| Tue 20 | Scattered Rain Showers then Partly Sunny | 81°F | 66°F | 54% |
| Wed 21 | Scattered Rain Showers then Partly Sunny | 81°F | 66°F | 67% |
| Thu 22 | Scattered Rain Showers | 81°F | 68°F | 52% |
| Fri 23 | Mostly Cloudy | 82°F | 70°F | 47% |
| Sat 24 | Scattered Rain Showers | 81°F | 70°F | 47% |
| Sun 25 | Scattered Rain Showers | 81°F | 81°F | 35% |
National Weather Service forecast. All US weather alerts →
Nearby cities
US rankingRelated reading
NewsNor'easter hits the Outer Banks: Hatteras visitors ordered out, NC 12 expected to close, 2 to 4 feet of flooding
ExplainersFirst freeze of the season: what a freeze warning, freeze watch and frost advisory mean this weekend
NewsSanta Ana winds: Norte Fire forces 16,000 from homes as red flag warnings, heat and power shutoffs run through Saturday
Hilo air quality: common questions
What is the AQI in Hilo right now?
The US AQI in Hilo is 27 (Good). The main pollutant is PM2.5.
Is it safe to go outside in Hilo today?
A great time to be outside. Air quality is satisfactory and poses little or no risk. For runners: A great time to run outdoors.
How has air quality in Hilo been recently?
Over the last 36 days with data, Hilo averaged US AQI 22. The worst day was 8 October at 55; the cleanest was 25 September at 12. 0 days were at Unhealthy or worse.
Where does Hilo's air quality data come from?
From US EPA AirNow, using 1 monitoring station in and around the city. Good Air does not estimate or adjust these readings.
Source: US EPA AirNow. Readings are published by the monitoring agency and may be revised.