What is the air quality trend in Osorno?

Over the past 15 days, Osorno had an average AQI of 66 based on station measurements. The worst day was 2026-08-23 with AQI 106.

How is Osorno air quality measured?

Air quality in Osorno 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 Osorno, Chile

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

324h

PM2.5 Station

324h · 3 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-09-05	62	32–90	18.4 µg/m³	9h	3
2026-09-04	59	17–157	17.5 µg/m³	23h	3
2026-09-03	42	13–102	11.3 µg/m³	24h	3
2026-09-02	58	19–221	21.1 µg/m³	22h	4
2026-09-01	69	16–188	24.5 µg/m³	24h	3
2026-08-31	82	28–163	27.8 µg/m³	24h	3
2026-08-30	70	23–171	24.2 µg/m³	23h	3
2026-08-29	54	21–114	15.1 µg/m³	23h	3
2026-08-28	48	10–85	13.1 µg/m³	24h	3
2026-08-27	67	21–157	21.3 µg/m³	24h	3
2026-08-26	50	17–119	13.7 µg/m³	23h	3
2026-08-25	53	21–140	14.5 µg/m³	24h	3
2026-08-24	102	25–254	44.2 µg/m³	24h	3
2026-08-23	106	40–191	46.5 µg/m³	24h	3
2026-08-22	70	41–103	21.4 µg/m³	9h	4

Back to Osorno Air Quality