What is the air quality trend in Timaru?

Over the past 14 days, Timaru had an average AQI of 33 based on station measurements. The worst day was with AQI .

How is Timaru air quality measured?

Air quality in Timaru 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 Timaru, New Zealand

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

Historical PM2.5 and AQI trend from monitoring stations near Timaru, New Zealand.

Current AQI
Good

48 Hours 7 Days 14 Days 20 Days

PM2.5 Trend

225h · 1 station

Daily Summary

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-04-11	42	27–54	10.3 µg/m³	50.4	4h	1
2026-04-10	18	6–30	4.5 µg/m³	14.5	21h	1
2026-04-09	25	11–55	6.0 µg/m³	18.9	15h	1
2026-04-08	53	17–76	15.1 µg/m³	56.6	8h	1
2026-04-07	41	14–55	10.0 µg/m³	23.4	21h	1
2026-04-06	14	7–27	3.3 µg/m³	9.5	16h	1
2026-04-04	15	11–22	3.6 µg/m³	6.3	11h	1
2026-04-03	31	12–63	7.6 µg/m³	19.0	23h	1
2026-04-02	46	18–72	11.8 µg/m³	40.5	20h	1
2026-04-01	46	23–117	13.0 µg/m³	47.3	19h	1
2026-03-31	27	16–47	6.4 µg/m³	21.7	21h	1
2026-03-30	34	12–117	9.7 µg/m³	31.4	9h	1
2026-03-29	45	13–176	14.2 µg/m³	32.8	22h	1
2026-03-28	34	22–46	8.2 µg/m³	19.0	15h	1

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