What is the air quality trend in Tijuana?

Over the past 17 days, Tijuana had an average AQI of 43 based on station measurements. The worst day was with AQI .

How is Tijuana air quality measured?

Air quality in Tijuana 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 Tijuana, Mexico

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

Historical PM2.5 and AQI trend from monitoring stations near Tijuana, Mexico.

Current AQI
Good

48 Hours 7 Days 14 Days 20 Days

PM2.5 Trend

325h · 4 stations

Daily Summary

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-04-11	14	11–20	3.4 µg/m³	11h	5
2026-04-10	40	18–69	10.4 µg/m³	24h	5
2026-04-09	55	30–69	15.1 µg/m³	17h	5
2026-04-08	35	30–40	8.5 µg/m³	8h	5
2026-04-07	40	32–52	9.7 µg/m³	24h	5
2026-04-06	38	27–64	9.2 µg/m³	20h	5
2026-04-04	33	24–51	7.9 µg/m³	14h	5
2026-04-03	23	11–39	5.4 µg/m³	24h	5
2026-04-02	26	11–70	6.5 µg/m³	24h	4
2026-04-01	42	22–77	10.4 µg/m³	23h	5
2026-03-31	36	29–51	8.7 µg/m³	23h	5
2026-03-30	46	1–71	11.9 µg/m³	11h	5
2026-03-29	63	42–88	18.2 µg/m³	23h	5
2026-03-28	55	42–76	14.6 µg/m³	23h	5
2026-03-27	66	42–102	19.5 µg/m³	24h	5
2026-03-26	63	45–87	17.9 µg/m³	24h	5
2026-03-25	60	47–74	16.7 µg/m³	8h	4

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