What is the air quality trend in Piracicaba?

Over the past 15 days, Piracicaba had an average AQI of 66 based on station measurements. The worst day was 2026-05-20 with AQI 92.

How is Piracicaba air quality measured?

Air quality in Piracicaba 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 Piracicaba, Brazil

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

322h

PM2.5 Station

322h · 4 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-05-30	54	15–131	16.3 µg/m³	14h	3
2026-05-29	61	14–159	18.9 µg/m³	24h	2
2026-05-28	63	28–126	18.7 µg/m³	23h	4
2026-05-27	69	4–160	22.4 µg/m³	23h	3
2026-05-26	84	20–178	29.5 µg/m³	23h	3
2026-05-25	68	12–233	27.4 µg/m³	23h	3
2026-05-24	76	3–123	24.4 µg/m³	23h	4
2026-05-23	71	15–184	25.1 µg/m³	24h	4
2026-05-22	50	5–134	15.3 µg/m³	23h	3
2026-05-21	56	10–167	18.1 µg/m³	24h	3
2026-05-20	92	17–318	42.5 µg/m³	23h	4
2026-05-19	80	18–192	32.1 µg/m³	24h	3
2026-05-18	83	18–185	32.8 µg/m³	22h	4
2026-05-17	48	12–188	16.8 µg/m³	22h	3
2026-05-16	48	3–120	13.7 µg/m³	7h	3

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