Worst air pollution Kaimuki - Honolulu, today and tomorrow
Today (15 July): Air quality in Kaimuki 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 9:00 PM (PM10: 68.7/100).
Tomorrow (16 July 2026): Air quality in Kaimuki is poor. All pollutants stay as today. Pollution peaks around 12:00 AM (PM10: 65.7/100). Airmine updates local air quality forecasts four times daily.
For long term forecasts and maps, see the Airmine app
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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Honolulu's Kaimuki air quality reflects the historic residential and dining neighbourhood, with vehicle traffic on Waialae Avenue and the surrounding mixed residential and commercial character contributing local sources. The Ko'olau Range creates topographic variation, while Pacific trade winds provide background ventilation and the neighbourhood's walkable character and the hillside position generally maintain moderate Honolulu metropolitan readings throughout most of the year.
Today - 15 July | Pollution peaks at 21:00
AQI:
Poor
68.7/100
PM2.5 (fine particles):
Medium
49.2/100
PM10 (coarse particles):
Poor
68.7/100
NO2 (nitrogen dioxide):
Good
0.2/100
O3 (ozone):
Fair
23.3/100
SO2 (sulfur dioxide):
Good
0.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
1.3/100
PM1 (ultrafine particles):
Good
9.1/100
Levels show the poorest local air quality during the day
Tomorrow - 16 July | Pollution peaks at 00:00
AQI:
Poor
65.7/100
PM2.5 (fine particles):
Medium
48.2/100
PM10 (coarse particles):
Poor
65.7/100
NO2 (nitrogen dioxide):
Good
0.2/100
O3 (ozone):
Fair
23.3/100
SO2 (sulfur dioxide):
Good
0.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
1.4/100
PM1 (ultrafine particles):
Good
8.4/100
Other Landmarks in Honolulu
Frequently Asked Questions
Is air quality bad in Kaimuki right now?
On 15 July 2026, overall air quality in Kaimuki is poor. AQI is the main air quality indicator at 68.7/100. Pollution peaks around 9:00 PM (PM10: 68.7/100).
Will air quality be worse tomorrow in Kaimuki?
On 16 July 2026, air quality conditions in Kaimuki will be similar to today, with AQI forecast at poor at 65.7/100. Pollution peaks around 12:00 AM (PM10: 65.7/100).
When is air pollution at its worst in Kaimuki?
Kaimuki experiences the same seasonal air quality swings as the rest of Honolulu: the cleanest stretches usually come in spring and fall, between the summer ozone season and the calmer winter pollution episodes, but 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 Kaimuki 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