What is the air quality trend in Santa Cruz?

Over the past 5 days, Santa Cruz had an average AQI of 42 based on station measurements. The worst day was 2026-07-20 with AQI 89.

How is Santa Cruz air quality measured?

Air quality in Santa Cruz 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 Santa Cruz, Chile

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

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

Current AQI
Good CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

11h

PM2.5 Station

11h · 1 station

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-21	48	30–64	12.5 µg/m³	5h	1
2026-07-20	89	56–130	29.5 µg/m³	3h	1
2026-07-19	27	27–27	6.5 µg/m³	1h	1
2026-07-18	46	46–46	11.0 µg/m³	1h	1
2026-07-16	1	1–1	0.2 µg/m³	1h	1

Back to Santa Cruz Air Quality