What is the air quality trend in San Felipe?

Over the past 7 days, San Felipe had an average AQI of 66 based on station measurements. The worst day was 2026-05-23 with AQI 82.

How is San Felipe air quality measured?

Air quality in San Felipe 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 San Felipe, Chile

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

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

138

Current AQI
Unhealthy for sensitive groups CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

164h

PM2.5 Station

164h · 1 station

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-05-29	66	35–93	19.4 µg/m³	56.2	23h	2
2026-05-28	51	4–155	14.4 µg/m³	45.1	24h	2
2026-05-27	65	7–124	19.8 µg/m³	54.3	23h	2
2026-05-26	65	30–158	19.3 µg/m³	59.6	24h	2
2026-05-25	59	21–129	16.9 µg/m³	56.4	24h	2
2026-05-24	79	28–144	25.6 µg/m³	57.3	23h	2
2026-05-23	82	58–152	26.7 µg/m³	58.0	23h	2

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