What is the air quality trend in La Serena?

Over the past 15 days, La Serena had an average AQI of 51 based on station measurements. The worst day was 2026-07-12 with AQI 72.

How is La Serena air quality measured?

Air quality in La Serena 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 La Serena, Chile

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

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

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

257h

PM2.5 Station

257h · 2 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-22	67	67–67	19.6 µg/m³	1h	2
2026-07-21	45	9–169	15.2 µg/m³	21h	2
2026-07-20	38	13–75	9.9 µg/m³	18h	2
2026-07-19	43	14–72	10.6 µg/m³	18h	2
2026-07-18	59	13–153	17.9 µg/m³	22h	2
2026-07-17	48	18–311	21.6 µg/m³	19h	1
2026-07-16	71	1–296	35.2 µg/m³	21h	1
2026-07-15	55	13–134	16.3 µg/m³	17h	1
2026-07-14	46	10–89	12.4 µg/m³	19h	2
2026-07-13	64	11–154	21.3 µg/m³	16h	2
2026-07-12	72	1–249	33.6 µg/m³	18h	1
2026-07-11	45	17–119	12.2 µg/m³	16h	2
2026-07-10	35	5–78	9.0 µg/m³	19h	1
2026-07-09	50	14–153	14.0 µg/m³	16h	2
2026-07-08	39	6–95	10.4 µg/m³	16h	2

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