Worst air pollution Portmore, today and tomorrow
Today (9 August): Air quality in Portmore is fair. O3 is fair; AQI, PM2.5, and PM10 are medium; NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 10:00 PM (PM10: 56.7/100).
Tomorrow (10 August 2026): Air quality in Portmore is medium. O3 decreases to good; all other pollutants stay as today. Pollution peaks around 12:00 AM (PM10: 54.6/100). 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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Portmore's air quality reflects the greater Kingston metropolitan area's southern suburban position on the Portmore peninsula adjacent to the Kingston Harbour, with vehicle traffic on surrounding roads and the dense residential and commercial character contributing local sources. The Caribbean trade winds provide background ventilation, while the Kingston Harbour's industrial waterfront creates background maritime emissions and Portmore generally maintains moderate Jamaican metropolitan southern suburban readings throughout most of the year.
Today - 9 August | Pollution peaks at 22:00
AQI:
Medium
56.7/100
PM2.5 (fine particles):
Medium
45.5/100
PM10 (coarse particles):
Medium
56.7/100
NO2 (nitrogen dioxide):
Good
0.4/100
O3 (ozone):
Fair
20.4/100
SO2 (sulfur dioxide):
Good
0.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
4.1/100
PM1 (ultrafine particles):
Good
8.2/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 00:00
AQI:
Medium
54.6/100
PM2.5 (fine particles):
Medium
44.7/100
PM10 (coarse particles):
Medium
54.6/100
NO2 (nitrogen dioxide):
Good
0.4/100
O3 (ozone):
Good
19.4/100
SO2 (sulfur dioxide):
Good
0.7/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.3/100
PM1 (ultrafine particles):
Good
8.3/100
Frequently Asked Questions
Is air quality bad in Portmore right now?
On 9 August 2026, overall air quality in Portmore is fair. O3 is the main pollutant at 20.4/100. Pollution peaks around 10:00 PM (PM10: 56.7/100).
Will air quality be worse tomorrow in Portmore?
On 10 August 2026, air quality conditions in Portmore will be better than today, with AQI forecast at medium at 54.6/100. Pollution peaks around 12:00 AM (PM10: 54.6/100).
When is air pollution at its worst in Portmore?
Pollution in Portmore typically rises when road traffic together with shipbuilding and port operations combine, especially once dry spells bring strong winds. Dust carried on these winds adds substantially to particulate levels. Sea breezes typically keep conditions in check, except during still weather.
Are air quality levels in Portmore 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: 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.
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