What is the air quality trend in Subic?

Over the past 15 days, Subic had an average AQI of 71 based on station measurements. The worst day was 2026-05-27 with AQI 107.

How is Subic air quality measured?

Air quality in Subic 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 Subic, Philippines

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

Historical PM2.5 and AQI trend from monitoring stations near Subic, Philippines.

Current AQI
Moderate CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

330h

PM2.5 Station

330h · 4 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-05-30	69	64–77	20.7 µg/m³	4h	4
2026-05-29	77	62–91	24.2 µg/m³	24h	4
2026-05-28	100	73–126	34.5 µg/m³	22h	4
2026-05-27	107	92–129	37.9 µg/m³	24h	4
2026-05-26	86	63–104	29.0 µg/m³	24h	4
2026-05-25	65	54–80	18.8 µg/m³	24h	4
2026-05-24	65	53–73	18.8 µg/m³	24h	4
2026-05-23	52	39–70	13.5 µg/m³	24h	4
2026-05-22	48	32–67	12.2 µg/m³	23h	4
2026-05-21	46	23–63	11.9 µg/m³	24h	4
2026-05-20	67	53–88	19.5 µg/m³	24h	4
2026-05-19	75	64–88	23.5 µg/m³	24h	4
2026-05-18	65	51–77	18.9 µg/m³	24h	4
2026-05-17	64	46–83	18.1 µg/m³	24h	4
2026-05-16	81	65–107	26.2 µg/m³	17h	4

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