Worst air pollution Port-au-Prince, today and tomorrow
Today (16 July): Air quality in Port-au-Prince is poor. AQI and PM10 are poor; PM2.5 is medium; NO2, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 9:00 AM (PM10: 77.3/100).
Tomorrow (17 July 2026): Air quality in Port-au-Prince is poor. All pollutants stay as today. Pollution peaks around 6:00 AM (PM10: 67.3/100). 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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Port-au-Prince's air quality reflects the flat Haitian Gulf of Gonâve coastal position on the Cul-de-Sac Plain at 37 metres, with vehicle traffic on surrounding roads and the vehicle density, charcoal burning — Haiti having the Caribbean's highest charcoal dependency — and earthquake-reconstruction corridor generating elevated PM2.5 and black carbon. The Caribbean trade winds provide limited maritime ventilation, while the extraordinary charcoal dependency and the 2010 earthquake's persistent reconstruction dust maintain Port-au-Prince among the Caribbean's more severely challenged major capital environments throughout the year.
Today - 16 July | Pollution peaks at 09:00
AQI:
Poor
77.3/100
PM2.5 (fine particles):
Medium
54.7/100
PM10 (coarse particles):
Poor
77.3/100
NO2 (nitrogen dioxide):
Good
0.6/100
O3 (ozone):
Good
18.2/100
SO2 (sulfur dioxide):
Good
0.7/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.0/100
PM1 (ultrafine particles):
Good
13.7/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 06:00
AQI:
Poor
67.3/100
PM2.5 (fine particles):
Medium
48.0/100
PM10 (coarse particles):
Poor
67.3/100
NO2 (nitrogen dioxide):
Good
0.5/100
O3 (ozone):
Good
18.7/100
SO2 (sulfur dioxide):
Good
0.7/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.3/100
PM1 (ultrafine particles):
Good
10.2/100
Frequently Asked Questions
Is air quality bad in Port-au-Prince right now?
On 16 July 2026, overall air quality in Port-au-Prince is poor. AQI is the main air quality indicator at 77.3/100. Pollution peaks around 9:00 AM (PM10: 77.3/100).
Will air quality be worse tomorrow in Port-au-Prince?
On 17 July 2026, air quality conditions in Port-au-Prince will be similar to today, with AQI forecast at poor at 67.3/100. Pollution peaks around 6:00 AM (PM10: 67.3/100).
When is air pollution at its worst in Port-au-Prince?
Pollution in Port-au-Prince typically rises when road traffic, ongoing construction work, along with residential biomass burning combine, especially once windblown dust events occur. Dust carried on these winds adds substantially to particulate levels. Onshore breezes usually help clear the air, but pollution can build up when winds are light.
Are air quality levels in Port-au-Prince 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