What is the air quality trend in Southsea?

Over the past 21 days, Southsea had an average AQI of 51 based on station measurements. The worst day was 2026-05-25 with AQI 71.

How is Southsea air quality measured?

Air quality in Southsea 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 Southsea, United Kingdom

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

466h

PM2.5 Station

466h · 4 stations

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-06-09	45	5–74	11.9 µg/m³	17h	4
2026-06-08	54	19–161	15.5 µg/m³	24h	5
2026-06-07	47	13–96	12.8 µg/m³	24h	4
2026-06-06	58	8–137	16.7 µg/m³	24h	4
2026-06-05	53	21–80	14.5 µg/m³	24h	4
2026-06-04	57	25–113	16.4 µg/m³	24h	4
2026-06-03	59	16–180	19.1 µg/m³	24h	4
2026-06-02	60	22–119	17.1 µg/m³	24h	4
2026-06-01	41	16–69	10.7 µg/m³	24h	3
2026-05-31	43	8–156	12.4 µg/m³	23h	3
2026-05-30	40	2–93	10.8 µg/m³	22h	3
2026-05-29	50	13–158	14.8 µg/m³	22h	3
2026-05-28	55	25–112	15.5 µg/m³	24h	2
2026-05-27	55	8–119	15.7 µg/m³	24h	3
2026-05-26	60	9–135	18.1 µg/m³	23h	3
2026-05-25	71	20–422	32.4 µg/m³	24h	3
2026-05-24	42	15–135	11.5 µg/m³	21h	3
2026-05-23	44	17–134	12.2 µg/m³	24h	3
2026-05-22	44	13–81	11.6 µg/m³	23h	3
2026-05-21	54	17–191	19.1 µg/m³	21h	3
2026-05-20	39	20–62	10.0 µg/m³	6h	4

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