What is the air quality trend in Southsea?

Over the past 21 days, Southsea had an average AQI of 57 based on station measurements. The worst day was 2026-05-12 with AQI 78.

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 CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

459h

PM2.5 Station

459h · 3 stations

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-05-29	38	26–55	9.1 µg/m³	18h	3
2026-05-28	57	33–156	16.2 µg/m³	22h	3
2026-05-27	61	28–151	18.0 µg/m³	23h	3
2026-05-26	54	24–147	15.0 µg/m³	21h	4
2026-05-25	69	13–156	22.1 µg/m³	24h	4
2026-05-24	47	18–91	12.7 µg/m³	22h	3
2026-05-23	50	23–92	13.8 µg/m³	23h	3
2026-05-22	52	21–154	14.6 µg/m³	23h	4
2026-05-21	64	17–205	24.7 µg/m³	24h	3
2026-05-20	58	22–162	18.6 µg/m³	23h	3
2026-05-19	70	20–153	22.5 µg/m³	24h	4
2026-05-18	76	8–215	30.6 µg/m³	24h	4
2026-05-17	72	22–111	22.8 µg/m³	22h	6
2026-05-16	63	23–172	20.6 µg/m³	20h	6
2026-05-15	65	20–253	24.4 µg/m³	24h	5
2026-05-14	54	13–100	15.3 µg/m³	24h	5
2026-05-13	49	5–81	13.3 µg/m³	24h	5
2026-05-12	78	18–405	42.0 µg/m³	24h	5
2026-05-11	50	11–157	14.5 µg/m³	24h	5
2026-05-10	51	18–82	13.9 µg/m³	24h	6
2026-05-09	36	10–61	9.6 µg/m³	2h	4

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