Worst air pollution Hyūga, today and tomorrow
Today (16 July): Air quality in Hyūga is medium. AQI and O3 are medium; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 3:00 PM (O3: 47.7/100).
Tomorrow (17 July 2026): Air quality in Hyūga is fair. HCHO increases to fair; all other pollutants stay as today. Pollution peaks around 3:00 PM (O3: 53.2/100). 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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Hyūga's air quality benefits from its exceptional Miyazaki Prefecture Pacific Ocean coastal position, with consistent Pacific maritime breezes providing reliable ventilation along this pristine Hyuga Sea coast. Vehicle traffic on surrounding roads and the paper manufacturing, fishing, and services corridor contribute local sources, while the outstanding Pacific coastal exposure and the dramatic Miyazaki highland backdrop generally maintain Hyuga at moderate to good conditions for a major Japanese Pacific coastal city.
Today - 16 July | Pollution peaks at 15:00
AQI:
Medium
47.7/100
PM2.5 (fine particles):
Good
12.2/100
PM10 (coarse particles):
Good
3.7/100
NO2 (nitrogen dioxide):
Good
7.2/100
O3 (ozone):
Medium
47.7/100
SO2 (sulfur dioxide):
Good
3.8/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
16.9/100
PM1 (ultrafine particles):
Good
15.5/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 15:00
AQI:
Medium
53.2/100
PM2.5 (fine particles):
Good
14.0/100
PM10 (coarse particles):
Good
4.4/100
NO2 (nitrogen dioxide):
Good
8.9/100
O3 (ozone):
Medium
53.2/100
SO2 (sulfur dioxide):
Good
2.5/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Fair
20.1/100
PM1 (ultrafine particles):
Good
17.1/100
Frequently Asked Questions
Is air quality bad in Hyūga right now?
On 16 July 2026, overall air quality in Hyūga is medium. AQI is the main air quality indicator at 47.7/100. Pollution peaks around 3:00 PM (O3: 47.7/100).
Will air quality be worse tomorrow in Hyūga?
On 17 July 2026, air quality conditions in Hyūga will be worse than today, with HCHO forecast at fair at 20.1/100. Pollution peaks around 3:00 PM (O3: 53.2/100).
When is air pollution at its worst in Hyūga?
Air quality in Hyūga tends to be worse when vehicle traffic, textile and manufacturing operations, as well as shipbuilding and port operations build up and the sea breeze weakens. Maritime airflow normally ventilates the area well, though calmer spells let levels rise. This natural ventilation is one reason coastal areas often see better readings than inland cities.
Are air quality levels in Hyūga 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