What is the air quality trend in Southsea?

Over the past 8 days, Southsea had an average AQI of 49 based on station measurements. The worst day was 2026-07-18 with AQI 64.

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

136h

PM2.5 Station

136h · 2 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-22	36	20–46	8.6 µg/m³	4h	2
2026-07-21	49	21–112	13.6 µg/m³	21h	3
2026-07-20	34	15–66	8.3 µg/m³	21h	2
2026-07-19	50	4–154	14.8 µg/m³	21h	2
2026-07-18	64	23–197	25.7 µg/m³	23h	2
2026-07-17	57	20–157	16.6 µg/m³	19h	2
2026-07-16	47	16–66	11.9 µg/m³	16h	2
2026-07-15	55	23–105	14.8 µg/m³	11h	2

Back to Southsea Air Quality