What is the air quality trend in Southend-on-Sea?

Over the past 15 days, Southend-on-Sea had an average AQI of 63 based on station measurements. The worst day was 2026-05-19 with AQI 84.

How is Southend-on-Sea air quality measured?

Air quality in Southend-on-Sea 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 Southend-on-Sea, United Kingdom

Name: Southend-on-Sea Air Quality History
Creator: CERNS.IO
License: https://creativecommons.org/licenses/by/4.0/

Historical PM2.5 and AQI trend from monitoring stations near Southend-on-Sea, United Kingdom.

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

335h

PM2.5 Station

335h · 11 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-05-29	49	26–105	13.1 µg/m³	10.5	20h	12
2026-05-28	58	36–163	16.8 µg/m³	15.4	24h	12
2026-05-27	61	31–142	17.5 µg/m³	21.7	24h	13
2026-05-26	70	37–161	22.3 µg/m³	14.5	24h	14
2026-05-25	73	35–164	23.2 µg/m³	20.8	24h	17
2026-05-24	56	31–130	15.4 µg/m³	20.0	24h	12
2026-05-23	50	26–116	13.5 µg/m³	12.8	24h	12
2026-05-22	59	31–123	16.7 µg/m³	8.5	24h	14
2026-05-21	57	21–153	16.5 µg/m³	4.6	24h	11
2026-05-20	81	21–169	28.9 µg/m³	5.7	24h	12
2026-05-19	84	24–152	28.0 µg/m³	5.7	24h	16
2026-05-18	66	16–136	20.7 µg/m³	5.2	24h	15
2026-05-17	82	16–161	27.9 µg/m³	4.6	24h	20
2026-05-16	59	10–119	17.5 µg/m³	7.1	24h	18
2026-05-15	54	41–70	14.5 µg/m³	8.9	3h	15

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