What is the air quality trend in Saint Peter Port?

Over the past 15 days, Saint Peter Port had an average AQI of 10 based on station measurements. The worst day was 2026-10-15 with AQI 31.

How is Saint Peter Port air quality measured?

Air quality in Saint Peter Port 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 Saint Peter Port, Guernsey

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

Historical PM2.5 and AQI trend from monitoring stations near Saint Peter Port, Guernsey.

Current AQI
Good CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

327h

PM2.5 Station

327h · 31 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-10-21	9	6–11	2.1 µg/m³	12h	31
2026-10-20	18	4–45	4.3 µg/m³	23h	29
2026-10-19	15	2–31	3.5 µg/m³	24h	32
2026-10-18	7	5–9	1.6 µg/m³	22h	31
2026-10-17	5	4–7	1.3 µg/m³	24h	31
2026-10-16	7	4–12	1.6 µg/m³	24h	29
2026-10-15	31	11–51	7.5 µg/m³	24h	32
2026-10-14	14	10–20	3.3 µg/m³	24h	31
2026-10-13	10	6–13	2.5 µg/m³	24h	32
2026-10-12	13	7–24	3.1 µg/m³	24h	31
2026-10-11	5	3–8	1.2 µg/m³	24h	31
2026-10-10	5	2–7	1.3 µg/m³	22h	30
2026-10-09	11	7–19	2.5 µg/m³	23h	30
2026-10-08	6	4–8	1.4 µg/m³	24h	31
2026-10-07	7	5–9	1.6 µg/m³	9h	30

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