Miami air quality
Florida, United States · Live AQI and hourly forecast for the next 5 days · updated Sat 7:00 PM local time
Good
Great air. A perfect time to be outside.
- Next 24 hours
- 48–72US AQI, highest around Sun 6:00 PM
- Best time outside
- Sun 4:00 AM–7:00 AMUS AQI about 48
- PM2.5 vs WHO guideline
- 0.6×8.9 µg/m³ over 24 h, guideline 15
- Cigarette equivalent
- ≈ 0.4 a dayBerkeley Earth rule of thumb
- European AQI
- Moderatelevel 3 of 6
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Pollutants in Miami right now
| Pollutant | Now | Next 24 h vs WHO | US AQI band |
|---|---|---|---|
| Fine particles (PM2.5) | 10 µg/m³ | 0.6× | Moderate |
| Coarse particles (PM10) | 13 µg/m³ | 0.3× | Good |
| Nitrogen dioxide (NO2) | 1.9 µg/m³ | 0.1× | Good |
| Ozone (O3) | 109 µg/m³ | 1.2× | Moderate |
| Sulphur dioxide (SO2) | 0.6 µg/m³ | 0.0× | Good |
| Carbon monoxide (CO) | 254 µg/m³ | 0.1× | Good |
| Desert dust | 0 µg/m³ | ||
| Smoke and haze (aerosol optical depth) | 0.18 | ||
| UV index | 0.0 |
“Next 24 h vs WHO” compares the forecast with the World Health Organization’s 2021 guideline levels: 24-hour means of 15 µg/m³ for PM2.5, 45 for PM10, 25 for NO2, 40 for SO2 and 4 mg/m³ for CO, and 100 µg/m³ over 8 hours for ozone. Above 1× is above the guideline.
Next 48 hours
Hourly US AQI. Highest 82 around Sun 9:00 PM, lowest 48 around Sun 4:00 AM.
5-day air quality forecast for Miami
Daily range of the hourly US AQI, from lowest to highest, on a scale of 0 to 150.
| Day | US AQI | At worst | PM2.5 avg | |
|---|---|---|---|---|
| Sat, Sep 26 | 34–54 | 8.7 | ||
| Sun, Sep 27 | 48–82 | 8.9 | ||
| Mon, Sep 28 | 51–81 | 7.4 | ||
| Tue, Sep 29 | 41–49 | 3.8 | ||
| Wed, Sep 30 | 33–40 | 3.0 |
Common questions about the air in Miami
Is the air in Miami safe today?
Yes. Right now the US AQI in Miami is 50, which counts as good. Great air. A perfect time to be outside. It is expected to reach 72 (moderate) around Sun 6:00 PM.
When is the best time to be outside in Miami?
Sun 4:00 AM–7:00 AM. That is the cleanest stretch in the next 24 hours, with the US AQI averaging about 48. The worst hour is around Sun 6:00 PM, at 72.
What is the main pollutant in Miami?
Fine particles (PM2.5). It drives the index right now, at 10 µg/m³. Tiny particles from combustion, fires and dust that reach deep into the lungs. The main driver of AQI worldwide.
How does Miami's air compare with the WHO guideline?
Within the guideline. Over the next 24 hours PM2.5 averages about 8.9 µg/m³, against the World Health Organization's 24-hour guideline of 15 µg/m³. O3 is forecast above its guideline level.
How many cigarettes is a day of Miami's air?
About 0.4 cigarettes. Over the next 24 hours PM2.5 averages about 8.9 µg/m³. By Berkeley Earth's rule of thumb, 22 µg/m³ breathed for a day is roughly one cigarette.
Will air quality in Miami improve this week?
Wednesday looks cleanest. Its AQI peaks at 40, against 82 on Sunday, the worst day in the forecast.
Measured near Miami
| Station | PM2.5 µg/m³ | Measured |
|---|---|---|
| NCORE AirNow, reference monitor | 6.2 | Sat 6:00 PM |
| DANIA_BEACH AirNow, reference monitor | – | Sat 6:00 PM |
| Near Road AirNow, reference monitor | 7.3 | Sat 6:00 PM |
Air quality near Miami
- Atlanta 976 km NW
- Washington, D.C. 1,491 km N
- Houston 1,557 km W
- Philadelphia 1,646 km N
- New York 1,758 km N
- Dallas 1,787 km NW
About this forecast
Forecast from CAMS global via Open-Meteo: the Copernicus Atmosphere Monitoring Service (CAMS) model at about 40 km resolution (10 km inside Europe), refreshed twice a day. Models smooth out street-level peaks, so busy roads and industrial sites can be worse than shown; ground stations, where there are any nearby, show what monitors actually measure. The US AQI follows the US EPA scale and the European AQI the EEA bands. Readings for 25.76°N, 80.19°W, updated 2026-09-26 23:00 UTC.