What is the air quality trend in Ōfunato?

Over the past 15 days, Ōfunato had an average AQI of 35 based on station measurements. The worst day was 2026-08-30 with AQI 55.

How is Ōfunato air quality measured?

Air quality in Ōfunato 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 Ōfunato, Japan

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

274h

PM2.5 Station

274h · 3 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-09-05	29	13–58	7.0 µg/m³	11h	2
2026-09-04	20	1–53	4.8 µg/m³	20h	2
2026-09-03	19	9–38	4.6 µg/m³	21h	2
2026-09-02	37	16–74	9.5 µg/m³	22h	2
2026-09-01	30	7–50	7.2 µg/m³	20h	2
2026-08-31	44	6–257	19.4 µg/m³	17h	2
2026-08-30	55	9–204	22.9 µg/m³	14h	2
2026-08-29	38	5–79	9.7 µg/m³	19h	2
2026-08-28	28	11–45	6.8 µg/m³	18h	1
2026-08-27	38	13–100	10.2 µg/m³	22h	2
2026-08-26	41	9–152	11.3 µg/m³	20h	2
2026-08-25	36	17–67	8.8 µg/m³	19h	2
2026-08-24	40	20–65	9.9 µg/m³	23h	2
2026-08-23	38	11–70	9.4 µg/m³	21h	2
2026-08-22	38	22–60	9.6 µg/m³	7h	2

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