What is the air quality trend in Christchurch?

Over the past 15 days, Christchurch had an average AQI of 45 based on station measurements. The worst day was 2026-07-18 with AQI 67.

How is Christchurch air quality measured?

Air quality in Christchurch 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 Christchurch, United Kingdom

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

Historical PM2.5 and AQI trend from monitoring stations near Christchurch, United Kingdom.

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

271h

PM2.5 Station

271h · 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	37	22–59	9.1 µg/m³	7h	2
2026-07-21	43	16–92	11.5 µg/m³	22h	3
2026-07-20	36	18–56	8.8 µg/m³	22h	3
2026-07-19	41	8–93	10.9 µg/m³	22h	2
2026-07-18	67	18–259	29.6 µg/m³	23h	3
2026-07-17	56	24–127	15.4 µg/m³	21h	2
2026-07-16	57	16–100	15.7 µg/m³	17h	2
2026-07-15	58	13–163	17.2 µg/m³	19h	2
2026-07-14	42	22–63	10.4 µg/m³	17h	2
2026-07-13	41	16–117	11.1 µg/m³	21h	2
2026-07-12	36	17–86	9.2 µg/m³	21h	2
2026-07-11	33	15–60	8.1 µg/m³	14h	2
2026-07-10	50	26–99	13.4 µg/m³	16h	2
2026-07-09	43	11–76	11.1 µg/m³	17h	2
2026-07-08	35	19–55	8.5 µg/m³	12h	2

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