Miami Air Quality in 2025
In 2025, Miami's air quality (Miami-Fort Lauderdale-West Palm Beach, FL area) had a median daily AQI of 48 (Good) across 365 monitored days. 1 day (0.3%) reached Unhealthy for Sensitive Groups or worse, 193 were Good, and the year's peak AQI was 113 (Unhealthy for Sensitive Groups). Fine particulate matter (PM2.5) set the daily AQI on 267 of those days. The cleanest month of 2025 was September (median AQI 38, 0 days above 100) and the worst was March (median 58, 1 day above 100, peak 113).
- Good: 52.9%
- Moderate: 46.8%
- Unhealthy for Sensitive Groups: 0.3%
- Unhealthy or worse: 0.0%
Extra Protection for Miami Homes
Air quality in Miami is moderate (AQI 54), with fine particles (PM2.5) the main concern. A True-HEPA purifier gives sensitive groups — kids, seniors and anyone with asthma or allergies — cleaner air indoors on days like today.
Recommended: Coway AP-1512HH Mighty — True HEPA + carbon · CADR ~246 CFM · rooms up to 361 sq ft
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How was Miami's air quality in 2025?
Good on a typical day: median AQI 48, with 1 day above AQI 100 out of 365 monitored — the 1st cleanest of 7 years on record for the area.
- ✓Peak AQI in 2025: 113 (Unhealthy for Sensitive Groups).
- ✓Fine particulate matter (PM2.5) was the main pollutant on 267 days.
- ✓Cleanest month: September; worst: March.
Frequently asked questions
What was the average AQI in Miami in 2025?▾
EPA's Air Quality System puts Miami's (Miami-Fort Lauderdale-West Palm Beach, FL) median daily AQI for 2025 at 48, which is Good. 1 day were Unhealthy for Sensitive Groups or worse and the year's highest AQI was 113.
Which month had the worst air quality in Miami in 2025?▾
The cleanest month of 2025 was September (median AQI 38, 0 days above 100) and the worst was March (median 58, 1 day above 100, peak 113).
Was 2025 a good or bad year for Miami's air?▾
Among the 7 years EPA has published for the area (2019–2025), 2025 ranks 1st cleanest by days above AQI 100 — the best year on record here. 2025's median of 48 is below the area's typical annual median of 51.
Miami month by month in 2025
Miami air quality month by month, 2025 (Miami-Fort Lauderdale-West Palm Beach, FL, EPA AQS daily AQI)
| Month | Days monitored | Median AQI | Days above 100 | Peak AQI | Main pollutant |
|---|---|---|---|---|---|
| January | 31 | 49 | 0 | 80 | PM2.5 |
| February | 28 | 47 | 0 | 80 | PM2.5 |
| Marchworst | 31 | 58 | 1 | 113 | PM2.5 |
| April | 30 | 57 | 0 | 87 | PM2.5 |
| May | 31 | 48 | 0 | 67 | PM2.5 |
| June | 30 | 48 | 0 | 71 | PM2.5 |
| July | 31 | 57 | 0 | 71 | PM2.5 |
| August | 31 | 47 | 0 | 74 | PM2.5 |
| Septembercleanest | 30 | 38 | 0 | 61 | PM2.5 |
| October | 31 | 39 | 0 | 51 | O3 |
| November | 30 | 44 | 0 | 74 | PM2.5 |
| December | 31 | 48 | 0 | 80 | PM2.5 |
How 2025 compares
Among the 7 years EPA has published for the area (2019–2025), 2025 ranks 1st cleanest by days above AQI 100 — the best year on record here.
2025's median of 48 is below the area's typical annual median of 51.
Activity-specific thresholds: running, cycling, kids' sports.
Right now in Miami
The latest EPA AirNow observation puts Miami's AQI at 54 (PM2.5). The figures above are multi-year annual statistics, not today's reading.
View current Miami air quality →Source: EPA Air Quality System (AQS) pre-generated Daily AQI by CBSA files — daily AQI by CBSA (Miami-Fort Lauderdale-West Palm Beach, FL), 2019–2025. Daily AQI per CBSA is the highest AQI reported by any monitor in the area that day; the defining parameter is the pollutant that set it. Month and season statistics pool every such day in the period across all years listed. Retrieved 2026-09-09.