Worst air pollution Matsue, today and tomorrow
Today (16 July): Air quality in Matsue is poor. AQI and O3 are poor; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 5:00 PM (O3: 72.0/100).
Tomorrow (17 July 2026): Air quality in Matsue is poor. PM1 increases to fair; all other pollutants stay as today. Pollution peaks around 2:00 PM (O3: 67.1/100). Airmine updates local air quality forecasts four times daily.
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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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Matsue's air quality benefits from its exceptional Shimane Prefecture Lake Shinji and Nakaumi lagoon coastal position, with consistent Sea of Japan and lake breezes providing reliable ventilation. Vehicle traffic on surrounding roads and the traditional crafts, tourism, and services corridor contribute modest local sources, while the outstanding dual-water coastal exposure and the surrounding Chugoku Mountains create topographic variation and Matsue generally maintains good to moderate conditions for a historic Japanese San'in coastal city throughout most of the year.
Today - 16 July | Pollution peaks at 17:00
AQI:
Poor
72.0/100
PM2.5 (fine particles):
Good
16.2/100
PM10 (coarse particles):
Good
6.0/100
NO2 (nitrogen dioxide):
Good
6.7/100
O3 (ozone):
Poor
72.0/100
SO2 (sulfur dioxide):
Good
4.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
4.7/100
PM1 (ultrafine particles):
Good
14.5/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 14:00
AQI:
Poor
67.1/100
PM2.5 (fine particles):
Good
18.0/100
PM10 (coarse particles):
Good
5.9/100
NO2 (nitrogen dioxide):
Good
7.9/100
O3 (ozone):
Poor
67.1/100
SO2 (sulfur dioxide):
Good
4.7/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
6.9/100
PM1 (ultrafine particles):
Fair
21.0/100
Frequently Asked Questions
Is air quality bad in Matsue right now?
On 16 July 2026, overall air quality in Matsue is poor. AQI is the main air quality indicator at 72.0/100. Pollution peaks around 5:00 PM (O3: 72.0/100).
Will air quality be worse tomorrow in Matsue?
On 17 July 2026, air quality conditions in Matsue will be similar to today, with AQI forecast at poor at 67.1/100. Pollution peaks around 2:00 PM (O3: 67.1/100).
When is air pollution at its worst in Matsue?
Pollution in Matsue typically rises when traffic emissions and tourism-related traffic combine, especially once onshore breezes fall calm. Maritime airflow normally ventilates the area well, though calmer spells let levels rise. Areas further inland without this ventilation tend to fare worse.
Are air quality levels in Matsue based on measurements or forecasts?
It is forecasts derived by downscaling forecasts provided by EU’s Copernicus Atmosphere Monitoring Service (CAMS) by taking into account local conditions such as traffic patterns. CAMS bases its forecast on satellite measurements of particles and chemical compounds in the atmosphere. Airmine’s services were developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team.
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Data provided by Airmine — Last update: 16 July 2026 at 10:33 CEST (Data is updated four times daily.)
This forecast is produced independently using Airmine's own atmospheric data and models.
Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.
For long term forecasts and maps, see the Airmine app