What is the air quality trend in Kapolei?

Over the past 15 days, Kapolei had an average AQI of 46 based on station measurements. The worst day was 2026-07-17 with AQI 106.

How is Kapolei air quality measured?

Air quality in Kapolei is measured by ground-level monitoring stations that report PM2.5 and PM10 concentrations hourly. CERNS.IO aggregates readings from nearby stations and converts PM2.5 to the US EPA Air Quality Index (AQI) scale.

Air Quality History for Kapolei, United States

Name: Kapolei Air Quality History
Creator: CERNS.IO
License: https://creativecommons.org/licenses/by/4.0/

Historical PM2.5 and AQI trend from monitoring stations near Kapolei, United States.

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

311h

PM2.5 Station

311h · 2 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-22	12	12–13	2.9 µg/m³	4h	2
2026-07-21	43	5–81	11.3 µg/m³	19h	2
2026-07-20	52	5–85	14.6 µg/m³	22h	2
2026-07-19	58	25–263	21.6 µg/m³	23h	2
2026-07-18	87	14–152	29.6 µg/m³	23h	2
2026-07-17	106	3–240	51.7 µg/m³	23h	3
2026-07-16	79	12–214	34.0 µg/m³	24h	2
2026-07-15	33	5–57	8.1 µg/m³	22h	2
2026-07-14	40	25–59	9.8 µg/m³	24h	2
2026-07-13	29	13–57	7.0 µg/m³	22h	2
2026-07-12	40	5–176	12.6 µg/m³	23h	2
2026-07-11	30	11–51	7.2 µg/m³	24h	2
2026-07-10	29	9–63	7.0 µg/m³	24h	2
2026-07-09	32	9–56	7.6 µg/m³	18h	3
2026-07-08	28	12–51	6.7 µg/m³	16h	2

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