What is the air quality trend in Weihai?

Over the past 15 days, Weihai had an average AQI of 54 based on station measurements. The worst day was 2026-07-19 with AQI 74.

How is Weihai air quality measured?

Air quality in Weihai 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 Weihai, China

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

Historical PM2.5 and AQI trend from monitoring stations near Weihai, China.

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

288h

PM2.5 Station

288h · 1 station

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-21	58	25–98	16.4 µg/m³	18h	2
2026-07-20	62	25–97	17.9 µg/m³	22h	3
2026-07-19	74	34–179	24.8 µg/m³	21h	3
2026-07-18	58	28–80	16.1 µg/m³	22h	2
2026-07-17	52	15–76	13.8 µg/m³	21h	3
2026-07-16	48	11–153	13.7 µg/m³	16h	1
2026-07-15	48	15–98	13.4 µg/m³	21h	2
2026-07-14	40	14–91	10.3 µg/m³	21h	3
2026-07-13	51	20–93	13.9 µg/m³	17h	2
2026-07-12	60	31–109	17.0 µg/m³	24h	2
2026-07-11	61	25–102	17.2 µg/m³	18h	3
2026-07-10	54	19–104	14.9 µg/m³	23h	2
2026-07-09	50	33–77	13.1 µg/m³	20h	2
2026-07-08	49	23–87	12.7 µg/m³	23h	2
2026-07-07	52	52–52	12.7 µg/m³	1h	3

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