What is the air quality trend in Folkestone?

Over the past 21 days, Folkestone had an average AQI of 43 based on station measurements. The worst day was 2026-07-10 with AQI 59.

How is Folkestone air quality measured?

Air quality in Folkestone 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 Folkestone, United Kingdom

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

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

Current AQI
Good CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

453h

PM2.5 Station

453h · 1 station

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-22	21	21–21	5.1 µg/m³	2h	3
2026-07-21	45	22–127	12.0 µg/m³	24h	6
2026-07-20	50	18–304	20.0 µg/m³	23h	4
2026-07-19	48	26–161	13.6 µg/m³	24h	5
2026-07-18	45	20–72	11.5 µg/m³	24h	5
2026-07-17	55	34–151	15.1 µg/m³	24h	3
2026-07-16	50	20–162	14.3 µg/m³	24h	3
2026-07-15	44	12–63	10.7 µg/m³	22h	3
2026-07-14	48	19–144	12.6 µg/m³	24h	4
2026-07-13	37	22–58	9.1 µg/m³	22h	4
2026-07-12	44	20–73	11.3 µg/m³	24h	3
2026-07-11	52	14–156	15.4 µg/m³	24h	4
2026-07-10	59	28–230	20.6 µg/m³	24h	4
2026-07-09	41	19–87	10.4 µg/m³	24h	4
2026-07-08	45	18–132	11.6 µg/m³	24h	4
2026-07-07	46	12–251	17.2 µg/m³	24h	5
2026-07-06	37	15–68	9.3 µg/m³	14h	3
2026-07-05	34	16–103	8.8 µg/m³	24h	5
2026-07-04	37	11–103	9.8 µg/m³	24h	4
2026-07-03	48	15–192	16.1 µg/m³	24h	4
2026-07-02	36	16–53	8.8 µg/m³	10h	5

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