What is the air quality trend in Coquimbo?

Over the past 15 days, Coquimbo had an average AQI of 52 based on station measurements. The worst day was 2026-08-24 with AQI 77.

How is Coquimbo air quality measured?

Air quality in Coquimbo 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 Coquimbo, Chile

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

Historical PM2.5 and AQI trend from monitoring stations near Coquimbo, Chile.

Current AQI
Moderate Station

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
2026-09-05	57	23–109	16.2 µg/m³	10h	3
2026-09-04	50	15–87	13.5 µg/m³	24h	4
2026-09-03	40	21–94	10.4 µg/m³	23h	5
2026-09-02	41	11–71	10.4 µg/m³	24h	5
2026-09-01	51	19–166	15.0 µg/m³	24h	5
2026-08-31	41	16–68	10.6 µg/m³	24h	5
2026-08-30	54	17–134	15.9 µg/m³	24h	5
2026-08-29	44	16–164	12.6 µg/m³	24h	5
2026-08-28	45	18–165	12.9 µg/m³	24h	5
2026-08-27	55	21–154	15.2 µg/m³	23h	5
2026-08-26	38	10–75	9.8 µg/m³	24h	4
2026-08-25	54	17–157	15.8 µg/m³	24h	5
2026-08-24	77	11–210	28.5 µg/m³	24h	4
2026-08-23	70	18–144	21.5 µg/m³	23h	5
2026-08-22	66	38–152	19.4 µg/m³	11h	4

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