Worst air pollution Okinawa, today and tomorrow
Today (21 September): Air quality in Okinawa is fair. AQI, PM2.5, and PM10 are fair; NO2, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 6:00 PM (PM10: 22.4/100).
Tomorrow (22 September 2026): Air quality in Okinawa is fair. PM1 increases to fair; all other pollutants stay as today. Pollution peaks around 12:00 PM (PM10: 23.4/100). 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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Okinawa's air quality benefits from its exceptional central Okinawa Island Pacific Ocean and East China Sea coastal position, with consistent northeast and southwest Pacific trade winds providing outstanding maritime ventilation. Vehicle traffic on surrounding roads and the US military base complex operations and tourism corridor contribute local sources, while the extraordinary island trade wind exposure and the multiple military base corridor's aviation emissions represent the most distinctive local emission dynamic throughout most of the year.
Today - 21 September | Pollution peaks at 18:00
AQI:
Fair
22.4/100
PM2.5 (fine particles):
Fair
21.7/100
PM10 (coarse particles):
Fair
22.4/100
NO2 (nitrogen dioxide):
Good
5.1/100
O3 (ozone):
Good
18.1/100
SO2 (sulfur dioxide):
Good
1.6/100
CO (carbon monoxide):
Good
0.6/100
HCHO (formaldehyde):
Good
1.9/100
PM1 (ultrafine particles):
Good
18.6/100
Levels show the poorest local air quality during the day
Tomorrow - 22 September | Pollution peaks at 12:00
AQI:
Fair
23.4/100
PM2.5 (fine particles):
Fair
22.6/100
PM10 (coarse particles):
Fair
23.4/100
NO2 (nitrogen dioxide):
Good
5.7/100
O3 (ozone):
Good
19.0/100
SO2 (sulfur dioxide):
Good
1.9/100
CO (carbon monoxide):
Good
0.5/100
HCHO (formaldehyde):
Good
1.9/100
PM1 (ultrafine particles):
Fair
21.1/100
Frequently Asked Questions
Is air quality bad in Okinawa right now?
On 21 September 2026, overall air quality in Okinawa is fair. AQI is the main air quality indicator at 22.4/100. Pollution peaks around 6:00 PM (PM10: 22.4/100).
Will air quality be worse tomorrow in Okinawa?
On 22 September 2026, air quality conditions in Okinawa will be similar to today, with AQI forecast at fair at 23.4/100. Pollution peaks around 12:00 PM (PM10: 23.4/100).
When is air pollution at its worst in Okinawa?
Pollution in Okinawa typically rises when traffic emissions, military aviation activity, and tourism-related traffic combine, especially once the sea breeze weakens. Maritime airflow normally ventilates the area well, though calmer spells let levels rise. This coastal advantage is less pronounced during still, high-pressure weather.
Are air quality levels in Okinawa 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.
Why doesn’t the forecast always reflect wildfire impacts?
Airmine’s forecast uses CAMS (Copernicus Atmosphere Monitoring Service) as its background atmospheric model. While CAMS includes wildfire emissions, these are derived from satellite observations and are not available in real time. During rapidly evolving wildfire events, there may therefore be a delay before increased emissions are incorporated into the model. As a result, the forecast may temporarily underestimate PM₂.₅ and other pollutants associated with wildfire smoke.
During rapidly evolving wildfire events, CAMS may lag by approximately 1–2 days before increased wildfire emissions are fully represented, which can lead to temporary underestimation of PM₂.₅ concentrations in Airmine’s forecast.
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Data provided by Airmine — Last update: 22 September 2026 at 02:59 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.
Disclaimer: Forecasts are provided for informational purposes only and should not be relied upon as medical advice. Actual pollen and air quality conditions may vary from the forecast. If you have allergies, asthma, or another medical condition, consult a healthcare professional. Please see our Terms of Service for important information about limitations of liability.
Some text on this page may be generated or summarised using artificial intelligence (AI). Wherever possible, AI-generated content is enriched with Airmine's proprietary data to improve its accuracy and relevance. However, AI-generated content may still contain errors, omissions, or inaccuracies.
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