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Hawaii air quality today

Updated · LIVE · 2 metros tracked

Across the 2 Hawaii metros we measure, air is worst right now in Honolulu at AQI 10 (Good) and cleanest in Hilo at AQI 8.

Every Hawaii metro we track

#MetroAQIUV nowDominant
1 Honoluluno page yet 10Good 0.1 PM2.5
2 Hilono page yet 8Good 0.3 PM2.5

Sun over Hawaii today

The strongest UV in Hawaii today is 6 (High) in Honolulu, arriving around 1pm local time. The mildest of the 2 metros we model here peaks at 5.8 in Hilo.

6 Honolulu 1pm5.8 Hilo 11am

UV is modelled, not measured — unlike the AQI above it, which comes off an instrument. Hour by hour in Honolulu →

What stands behind these Hawaii numbers

2 of the 2 metros here report from a named regulatory monitor — Honolulu, Hilo. The dominant pollutant across Hawaii today is PM2.5.

We track 2 metropolitan areas in Hawaii, not the whole state, and none of them has its own page yet — a metro page ships only after thirty days of our own history, and that clock is running. There is no state-wide average here on purpose: averaging 2 metros into one figure would invent a value for all the ground between them. How we measure, and what we refuse to estimate →

Updated