Worst air pollution Maui, today and tomorrow

Today (30 August): Air quality in Maui is very poor. AQI and PM10 are very poor; PM2.5 is poor; O3 is fair; NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 5:00 PM (PM10: 100/100).
Tomorrow (31 August 2026): Air quality in Maui is poor. AQI improves to poor; PM2.5 decreases to moderate; PM10 decreases to poor; O3 decreases to good; all other pollutants stay as today. Pollution peaks around 1:00 AM (PM10: 66.2/100). 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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Maui's Road to Hana air quality benefits from its exceptional Hawaiian North Shore Pacific coastal position, with consistent northeast Pacific trade winds providing outstanding maritime ventilation along the 52-mile scenic highway. Vehicle traffic on Hana Highway contributes modest local sources, while the extraordinary lush tropical rainforest provides exceptional natural filtration and the Hawaiian trade wind exposure generally maintains excellent to good conditions along most of this spectacular coastal route.

Today - 30 August | Pollution peaks at 17:00

AQI:

Very poor

100/100

PM2.5 (fine particles):

Poor

71.2/100

PM10 (coarse particles):

Very poor

100/100

NO2 (nitrogen dioxide):

Good

0.6/100

O3 (ozone):

Fair

23.3/100

SO2 (sulfur dioxide):

Good

1.4/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

2.5/100

PM1 (ultrafine particles):

Good

17.7/100

Levels show the poorest local air quality during the day

Tomorrow - 31 August | Pollution peaks at 01:00

AQI:

Poor

66.2/100

PM2.5 (fine particles):

Moderate

46.8/100

PM10 (coarse particles):

Poor

66.2/100

NO2 (nitrogen dioxide):

Good

0.4/100

O3 (ozone):

Good

17.3/100

SO2 (sulfur dioxide):

Good

0.9/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

2.1/100

PM1 (ultrafine particles):

Good

7.8/100

Frequently Asked Questions

Is air quality bad in Maui right now?

On 30 August 2026, overall air quality in Maui is very poor. AQI is the main air quality indicator at 100/100. Pollution peaks around 5:00 PM (PM10: 100/100).

Will air quality be worse tomorrow in Maui?

On 31 August 2026, air quality conditions in Maui will be better than today, with AQI forecast at poor at 66.2/100. Pollution peaks around 1:00 AM (PM10: 66.2/100).

When is air pollution at its worst in Maui?

This landmark in Maui sees air quality shift through the year. In short, the cleanest stretches usually come in spring and fall, between the summer ozone season and the calmer winter pollution episodes, whereas summer heat waves are the main driver of poor air quality, as ozone builds under stagnant, humid conditions. Lake-effect winds can help clear the air on many days near the Great Lakes shoreline.

Are air quality levels in Maui 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: 30 August 2026 at 20:26 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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