Worst air pollution Kailua, today and tomorrow
Today (9 August): Air quality in Kailua is fair. O3 is fair; AQI, PM2.5, and PM10 are medium; NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 11:00 PM (PM10: 59.8/100).
Tomorrow (10 August 2026): Air quality in Kailua is poor. AQI worsens to poor; PM10 increases to poor; all other pollutants stay as today. Pollution peaks around 12:00 AM (PM10: 64.0/100). Airmine updates local air quality forecasts four times daily.
Get the full experience in the Airmine app.
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
Follow your pollen exposure and performance with the free Airmine–Strava integration. See your pollen and air quality exposure for every Strava activity.
Kailua experiences air quality conditions shaped chiefly by trade winds and volcanic vog, and northeast trade winds usually keep vog from Kilauea from reaching this side of the island. Most days bring generally favorable conditions here, with occasional exceptions tied to shifting weather patterns. Short-term spikes are still possible even during the generally cleaner stretches of the year.
Today - 9 August | Pollution peaks at 23:00
AQI:
Medium
59.8/100
PM2.5 (fine particles):
Medium
44.4/100
PM10 (coarse particles):
Medium
59.8/100
NO2 (nitrogen dioxide):
Good
0.1/100
O3 (ozone):
Fair
20.0/100
SO2 (sulfur dioxide):
Good
1.0/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
1.1/100
PM1 (ultrafine particles):
Good
7.1/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 00:00
AQI:
Poor
64.0/100
PM2.5 (fine particles):
Medium
43.7/100
PM10 (coarse particles):
Poor
64.0/100
NO2 (nitrogen dioxide):
Good
0.1/100
O3 (ozone):
Fair
21.4/100
SO2 (sulfur dioxide):
Good
1.0/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
1.1/100
PM1 (ultrafine particles):
Good
6.4/100
Frequently Asked Questions
Is air quality bad in Kailua right now?
On 9 August 2026, overall air quality in Kailua is fair. O3 is the main pollutant at 20.0/100. Pollution peaks around 11:00 PM (PM10: 59.8/100).
Will air quality be worse tomorrow in Kailua?
On 10 August 2026, air quality conditions in Kailua will be worse than today, with AQI forecast at poor at 64.0/100. Pollution peaks around 12:00 AM (PM10: 64.0/100).
When is air pollution at its worst in Kailua?
Conditions in Kailua vary noticeably across the seasons: spring and autumn tend to bring the cleanest, most stable air, but the hottest, most humid summer days bring the year's worst ozone readings. Lake-effect winds can help clear the air on many days near the Great Lakes shoreline.
Are air quality levels in Kailua 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.
Want to see air quality forecasts for other cities in United States?
Check air quality in other popular cities:
Data provided by Airmine — Last update: 9 August 2026 at 20:27 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.
Get the full experience in the Airmine app.