What is the air quality trend in Valdivia?

Over the past 20 days, Valdivia had an average AQI of 56 based on station measurements. The worst day was 2026-05-26 with AQI 93.

How is Valdivia air quality measured?

Air quality in Valdivia 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 Valdivia, Chile

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

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

193

Current AQI
Unhealthy Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

382h

PM2.5 Station

382h · 2 stations

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-05-29	67	9–179	23.9 µg/m³	18h	2
2026-05-28	46	15–161	14.9 µg/m³	20h	2
2026-05-27	62	13–280	25.7 µg/m³	20h	2
2026-05-26	93	4–329	54.1 µg/m³	16h	2
2026-05-25	66	12–173	23.2 µg/m³	18h	2
2026-05-24	65	6–158	21.4 µg/m³	21h	2
2026-05-23	52	9–159	16.7 µg/m³	19h	2
2026-05-22	50	10–168	17.2 µg/m³	19h	2
2026-05-21	46	9–91	12.7 µg/m³	18h	2
2026-05-20	76	2–219	30.2 µg/m³	19h	2
2026-05-19	47	8–157	14.3 µg/m³	17h	1
2026-05-18	53	7–158	17.5 µg/m³	15h	1
2026-05-17	54	6–145	16.9 µg/m³	15h	1
2026-05-16	52	3–175	18.6 µg/m³	19h	2
2026-05-15	46	12–196	16.5 µg/m³	20h	2
2026-05-14	41	12–86	11.1 µg/m³	20h	2
2026-05-13	49	6–121	14.6 µg/m³	24h	2
2026-05-12	53	8–228	20.1 µg/m³	22h	2
2026-05-11	60	8–155	18.8 µg/m³	22h	2
2026-05-10	59	12–160	19.0 µg/m³	20h	2

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