Worst air pollution Ala Moana - Honolulu, today and tomorrow
Today (9 August): Air quality in Ala Moana is poor. AQI and PM10 are poor; O3 is fair; PM2.5 is medium; NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 11:00 PM (PM10: 60.3/100).
Tomorrow (10 August 2026): Air quality in Ala Moana is poor. All pollutants stay as today. Pollution peaks around 12:00 AM (PM10: 64.6/100). 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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Honolulu's Ala Moana air quality benefits from the Ala Moana Beach Park's direct Pacific Ocean and Mamala Bay coastal position, with consistent Pacific trade winds providing reliable maritime ventilation. Vehicle traffic on Ala Moana Boulevard and the concentrated shopping and commercial centre operations contribute local sources, while the outstanding Pacific coastal exposure and the beach park's open geometry generally maintain moderate to good conditions throughout most of the year.
Today - 9 August | Pollution peaks at 23:00
AQI:
Poor
60.3/100
PM2.5 (fine particles):
Medium
44.6/100
PM10 (coarse particles):
Poor
60.3/100
NO2 (nitrogen dioxide):
Good
0.1/100
O3 (ozone):
Fair
20.0/100
SO2 (sulfur dioxide):
Good
1.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
1.1/100
PM1 (ultrafine particles):
Good
7.3/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 00:00
AQI:
Poor
64.6/100
PM2.5 (fine particles):
Medium
43.9/100
PM10 (coarse particles):
Poor
64.6/100
NO2 (nitrogen dioxide):
Good
0.1/100
O3 (ozone):
Fair
21.4/100
SO2 (sulfur dioxide):
Good
1.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
1.1/100
PM1 (ultrafine particles):
Good
6.5/100
Other Landmarks in Honolulu
Frequently Asked Questions
Is air quality bad in Ala Moana right now?
On 9 August 2026, overall air quality in Ala Moana is poor. AQI is the main air quality indicator at 60.3/100. Pollution peaks around 11:00 PM (PM10: 60.3/100).
Will air quality be worse tomorrow in Ala Moana?
On 10 August 2026, air quality conditions in Ala Moana will be similar to today, with AQI forecast at poor at 64.6/100. Pollution peaks around 12:00 AM (PM10: 64.6/100).
When is air pollution at its worst in Ala Moana?
Conditions at Ala Moana vary noticeably across the seasons. Typically, between summer ozone and occasional winter inversions, spring and fall are the year's cleanest stretch, while prolonged summer heat waves are when air quality most often dips into unhealthy territory. Lake-effect winds can help clear the air on many days near the Great Lakes shoreline.
Are air quality levels in Ala Moana 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: 10 August 2026 at 02:34 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.
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