What is the air quality trend in Wakayama?

Over the past 21 days, Wakayama had an average AQI of 48 based on station measurements. The worst day was 2026-05-20 with AQI 72.

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
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

481h

PM2.5 Station

481h · 26 stations

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-06-09	39	22–53	9.4 µg/m³	20h	39
2026-06-08	38	20–57	9.4 µg/m³	24h	34
2026-06-07	36	24–46	8.5 µg/m³	24h	36
2026-06-06	41	28–54	9.9 µg/m³	24h	38
2026-06-05	38	28–53	9.1 µg/m³	24h	40
2026-06-04	41	24–58	10.0 µg/m³	24h	36
2026-06-03	42	21–64	10.3 µg/m³	24h	37
2026-06-02	46	23–65	11.4 µg/m³	24h	36
2026-06-01	61	48–74	17.0 µg/m³	24h	37
2026-05-31	59	49–72	15.9 µg/m³	24h	37
2026-05-30	54	45–63	13.6 µg/m³	24h	36
2026-05-29	50	30–62	12.5 µg/m³	24h	37
2026-05-28	48	25–61	12.1 µg/m³	24h	35
2026-05-27	44	20–59	10.7 µg/m³	24h	38
2026-05-26	45	26–62	10.8 µg/m³	24h	38
2026-05-25	55	40–195	17.4 µg/m³	24h	40
2026-05-24	49	36–60	12.1 µg/m³	24h	38
2026-05-23	51	36–64	12.6 µg/m³	24h	36
2026-05-22	50	35–68	12.4 µg/m³	24h	34
2026-05-21	52	38–63	12.9 µg/m³	24h	36
2026-05-20	72	50–142	21.3 µg/m³	5h	25

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