OrbisViews

Air quality · Hawaii

Honolulu Air Quality (AQI) Now

25 Fair
European Air Quality Index
PM2.5
7.6µg/m³WHO limit 15
PM10
13.1µg/m³WHO limit 45
NO₂
0.9µg/m³
O₃
61µg/m³
Desert dust
0µg/m³
UV index
6.7
US AQI
38

Updated: · Source: Copernicus CAMS · Open-Meteo

Air quality in Honolulu is fair right now: European Air Quality Index 25. Fine particulate matter (PM2.5) is 7.6 µg/m³, below the WHO guideline. Fine for outdoor activities; very sensitive people may reduce prolonged strenuous exercise. Pollution is expected to peak around 13:00 over the next 48 hours (index 39, fair).

Honolulu 48-hour air quality forecast

08:00: 3308:0009:00: 3410:00: 3411:00: 3412:00: 3313:00: 3114:00: 2914:0015:00: 2716:00: 2617:00: 2518:00: 2419:00: 2420:00: 2320:0021:00: 2322:00: 2323:00: 2300:00: 2301:00: 2402:00: 2402:0003:00: 2404:00: 2505:00: 2506:00: 2507:00: 2608:00: 2808:0009:00: 3110:00: 3311:00: 3612:00: 3813:00: 3914:00: 3914:0015:00: 3816:00: 3717:00: 3618:00: 3519:00: 3420:00: 3520:0021:00: 3622:00: 3723:00: 37

Air quality near Honolulu

Cleanest to most polluted.

Frequently asked questions

Is Honolulu polluted today?
Air quality in Honolulu is fair right now: European Air Quality Index 25. Fine for outdoor activities; very sensitive people may reduce prolonged strenuous exercise.
Is it safe to exercise outdoors in Honolulu today?
Yes, air quality is fair right now; fine for outdoor exercise.
How is the air quality index calculated?
The European Air Quality Index is set by the worst of PM2.5, PM10, nitrogen dioxide, ozone and sulphur dioxide: 0–20 good, 20–40 fair, 40–60 moderate, 60–80 poor, 80–100 very poor, above 100 extremely poor.

Values are Copernicus Atmosphere Monitoring Service (CAMS) model forecasts and may differ from local monitoring stations.

Honolulu air quality: details

Pollutants and recent days

Nitrogen dioxide (NO₂) is 0.9 µg/m³ and ozone (O₃) 61 µg/m³; WHO guideline values are 25 (24 h) and 100 µg/m³ (8 h).