What is the air quality trend in Wakayama?

Over the past 8 days, Wakayama had an average AQI of 65 based on station measurements. The worst day was 2026-10-15 with AQI 91.

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 · 39 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-10-21	35	27–48	8.5 µg/m³	7h	34
2026-10-20	54	28–85	14.4 µg/m³	24h	36
2026-10-19	64	39–99	18.6 µg/m³	24h	33
2026-10-18	45	26–124	11.8 µg/m³	24h	34
2026-10-17	70	35–137	21.4 µg/m³	24h	36
2026-10-16	77	44–158	24.9 µg/m³	24h	29
2026-10-15	91	41–159	31.1 µg/m³	24h	37
2026-10-14	90	35–162	31.3 µg/m³	14h	26

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