What is the air quality trend in Wakayama?

Over the past 8 days, Wakayama had an average AQI of 69 based on station measurements. The worst day was 2026-10-14 with AQI 104.

How is Wakayama air quality measured?

Air quality in Wakayama 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 Wakayama, Japan

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

Historical PM2.5 and AQI trend from monitoring stations near Wakayama, Japan.

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

165h

PM2.5 Station

165h · 35 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-10-21	44	26–98	11.8 µg/m³	8h	32
2026-10-20	55	29–120	15.3 µg/m³	24h	32
2026-10-19	68	37–103	20.7 µg/m³	24h	30
2026-10-18	35	22–55	8.4 µg/m³	24h	29
2026-10-17	76	32–149	24.2 µg/m³	24h	31
2026-10-16	81	52–168	27.2 µg/m³	24h	28
2026-10-15	92	50–173	32.3 µg/m³	24h	34
2026-10-14	104	29–171	41.0 µg/m³	13h	22

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