What is the air quality trend in Valparaíso?

Over the past 15 days, Valparaíso had an average AQI of 53 based on station measurements. The worst day was 2026-05-20 with AQI 101.

How is Valparaíso air quality measured?

Air quality in Valparaíso 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 Valparaíso, Brazil

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

Historical PM2.5 and AQI trend from monitoring stations near Valparaíso, Brazil.

Current AQI
Good CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

198h

PM2.5 Station

198h · 1 station

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-05-30	18	5–28	4.4 µg/m³	7h	1
2026-05-29	44	11–117	12.3 µg/m³	12h	1
2026-05-28	55	3–158	18.2 µg/m³	15h	1
2026-05-27	58	9–98	18.1 µg/m³	11h	1
2026-05-26	81	18–170	29.5 µg/m³	15h	1
2026-05-25	59	18–177	21.6 µg/m³	14h	1
2026-05-24	47	9–164	16.0 µg/m³	12h	1
2026-05-23	65	13–160	21.7 µg/m³	18h	1
2026-05-22	50	18–173	16.9 µg/m³	16h	1
2026-05-21	45	12–117	14.0 µg/m³	11h	1
2026-05-20	101	5–386	61.0 µg/m³	17h	1
2026-05-19	44	13–133	11.8 µg/m³	19h	1
2026-05-18	58	9–169	19.5 µg/m³	17h	1
2026-05-17	46	10–114	13.4 µg/m³	10h	1
2026-05-16	28	15–39	6.7 µg/m³	4h	1

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