Worst air pollution Wakayama, today and tomorrow
Today (16 July): Air quality in Wakayama is poor. AQI and O3 are poor; PM2.5, NO2, and PM1 are fair; PM10, SO2, CO, and HCHO are good. Pollution peaks around 4:00 PM (O3: 76.7/100).
Tomorrow (17 July 2026): Air quality in Wakayama is very poor. AQI worsens to very poor; NO2 decreases to good; O3 increases to very poor; all other pollutants stay as today. Pollution peaks around 3:00 PM (O3: 97.1/100). 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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Wakayama's air quality reflects the Wakayama Prefecture Kinokawa River coastal position on the Kii Channel, with vehicle traffic on surrounding roads and the steel, chemical, and tourism corridor contributing local sources. Consistent Kii Channel and Pacific maritime breezes provide reliable ventilation, while the Kii Mountains rising inland create topographic variation and Wakayama generally maintains moderate to good conditions for a major Japanese Kii Peninsula coastal industrial city throughout most of the year.
Today - 16 July | Pollution peaks at 16:00
AQI:
Poor
76.7/100
PM2.5 (fine particles):
Fair
20.4/100
PM10 (coarse particles):
Good
5.8/100
NO2 (nitrogen dioxide):
Fair
20.2/100
O3 (ozone):
Poor
76.7/100
SO2 (sulfur dioxide):
Good
7.7/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
14.0/100
PM1 (ultrafine particles):
Fair
25.9/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 15:00
AQI:
Very poor
97.1/100
PM2.5 (fine particles):
Fair
30.2/100
PM10 (coarse particles):
Good
8.7/100
NO2 (nitrogen dioxide):
Good
19.1/100
O3 (ozone):
Very poor
97.1/100
SO2 (sulfur dioxide):
Good
14.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
14.5/100
PM1 (ultrafine particles):
Fair
36.9/100
Frequently Asked Questions
Is air quality bad in Wakayama right now?
On 16 July 2026, overall air quality in Wakayama is poor. AQI is the main air quality indicator at 76.7/100. Pollution peaks around 4:00 PM (O3: 76.7/100).
Will air quality be worse tomorrow in Wakayama?
On 17 July 2026, air quality conditions in Wakayama will be worse than today, with AQI forecast at very poor at 97.1/100. Pollution peaks around 3:00 PM (O3: 97.1/100).
When is air pollution at its worst in Wakayama?
Air quality in Wakayama tends to be worse when road traffic, heavy industry such as steel, cement, or petrochemical processing, along with seasonal tourism traffic build up and dry spells bring strong winds. Dust carried on these winds adds substantially to particulate levels. Maritime airflow normally ventilates the area well, though calmer spells let levels rise.
Are air quality levels in Wakayama 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