AIR QUALITY FL

Air Quality in Miami, FL: Moderate (56 AQI)

AQI 56 · Moderate · PM2.5 · Updated 2026-07-18

Miami's air quality is moderate. Unusually sensitive people should consider reducing prolonged outdoor exertion.

Data: EPA AirNow, FEMA National Risk Index Last verified: 2026-07-18

Average AQI

Moderate

AQI Category

Wildfire Risk

Mold Score

ZIP Codes

What is AQI?

The Air Quality Index (AQI) is a standardized scale from 0 to 500 that measures air pollution levels. 0-50 is "Good," 51-100 is "Moderate," 101-150 is "Unhealthy for Sensitive Groups," and above 150 is "Unhealthy" for everyone. AQI tracks five major pollutants: ground-level ozone, particulate matter (PM2.5 and PM10), carbon monoxide, sulfur dioxide, and nitrogen dioxide. Miami's average AQI of 56 falls in the "Moderate" range.

How do wildfires affect air quality?

Wildfire smoke contains fine particulate matter (PM2.5) that can travel hundreds of miles and dramatically spike AQI readings. During fire season, even cities far from active fires can experience unhealthy air. HEPA air purifiers (rated for PM2.5) are the most effective indoor protection. Check AirNow.gov for real-time conditions during fire season.

Air Quality Map: Miami, FL

Each dot represents a ZIP code. Color indicates AQI level. Tap a dot for details.

Good (0-50) Moderate (51-100) USG (101-150) Unhealthy (151+)

Air Quality by ZIP Code in Miami

AQI varies across Miami's 96 ZIP codes based on proximity to pollution sources and local geography.

ZIP Code	AQI	Category	Wildfire	Mold
33101	56	Moderate	63	79	View report →
33102	56	Moderate	32	66	View report →
33106	56	Moderate	63	86	View report →
33110	56	Moderate	63	86	View report →
33111	56	Moderate	63	86	View report →
33112	56	Moderate	68	86	View report →
33116	56	Moderate	63	66	View report →
33122	56	Moderate	63	60	View report →
33124	56	Moderate	63	86	View report →
33125	56	Moderate	63	83	View report →
33126	56	Moderate	63	78	View report →
33127	56	Moderate	63	75	View report →
33128	56	Moderate	63	70	View report →
33129	56	Moderate	63	73	View report →
33130	56	Moderate	63	63	View report →

Showing 15 of 20 ZIP codes. View all.

Air Quality Overview

Miami, Florida has moderate air quality with an average AQI of 56. Air quality is acceptable, though some pollutants may be a concern for a small number of people who are unusually sensitive to air pollution. The dominant pollutant is PM2.5.

The Air Quality Index (AQI) is an EPA-standardized scale from 0 to 500. Values below 50 are "Good," 51-100 "Moderate," 101-150 "Unhealthy for Sensitive Groups," 151-200 "Unhealthy," 201-300 "Very Unhealthy," and above 300 "Hazardous."

Dominant Pollutant: PM2.5

PM2.5 (fine particulate matter) consists of particles smaller than 2.5 micrometers - about 30 times thinner than a human hair. These particles can penetrate deep into the lungs and enter the bloodstream.

Health effects of PM2.5 exposure:

Short-term: coughing, shortness of breath, aggravated asthma
Long-term: reduced lung function, cardiovascular disease, premature death
Most vulnerable: children, elderly, people with heart or lung disease

Common sources in urban areas: vehicle exhaust, construction dust, industrial emissions, wildfire smoke, residential wood burning.

Air Quality by ZIP Code in Miami

AQI varies across Miami's 96 ZIP codes based on proximity to pollution sources, traffic patterns, and local geography:

ZIP Code	AQI	Category	Wildfire Risk	Mold Score
33101	56	Moderate	63	79
33102	56	Moderate	32	66
33106	56	Moderate	63	86
33110	56	Moderate	63	86
33111	56	Moderate	63	86
33112	56	Moderate	68	86
33116	56	Moderate	63	66
33122	56	Moderate	63	60
33124	56	Moderate	63	86
33125	56	Moderate	63	83
33126	56	Moderate	63	78
33127	56	Moderate	63	75
33128	56	Moderate	63	70
33129	56	Moderate	63	73
33130	56	Moderate	63	63

Showing 15 of 96 ZIP codes. Check your specific ZIP for detailed data.

Wildfire Smoke Risk

Miami has an elevated wildfire smoke risk with an average smoke risk score of 64 (scale 0-100). There have been 6,821 fires recorded within 100 km of city ZIP codes.

Metric	Value
Avg. smoke risk score	64
Max smoke risk score	68
Fires within 100 km	6,821
High-risk ZIP codes	95

Wildfire smoke contains PM2.5, carbon monoxide, and volatile organic compounds. Even short-term exposure can trigger asthma attacks and respiratory distress.

Indoor Mold Risk

Miami has an average mold risk score of 78 out of 100, with 95 ZIP codes in the high-risk category.

Factor	Value
Mold risk score	78/100
Average humidity	78% RH
High-risk ZIPs	95
Peak season	summer high

Mold risk is influenced by humidity levels, housing age (older homes have more moisture issues), flood history, and water infrastructure quality. Indoor humidity above 60% creates favorable conditions for mold growth.

Signs of mold problems: musty odors, visible growth on walls or ceilings, worsening allergies indoors, condensation on windows. Professional mold testing ($300-$600) can identify hidden issues.

Health Recommendations

With moderate air quality (AQI 56), most people can be active outdoors. Sensitive groups should take precautions:

Sensitive groups (asthma, COPD, heart disease): consider reducing prolonged outdoor exertion
Keep windows closed on high-pollution days
Use a HEPA air purifier in main living areas
Check AirNow.gov before outdoor exercise

Miami vs. Nearby Florida Cities

How Miami's air quality compares to nearby cities:

City	AQI	Category	Population
Miami	56	Moderate	1,849,309
First Union Bank	71	Moderate	2,377,460
Orlando	44	Good	1,072,954
Jacksonville	53	Moderate	945,632

ZIP Codes in Miami

Miami covers 96 ZIP codes. Air quality can vary by neighborhood based on proximity to highways, industrial areas, and green spaces. Check your specific ZIP code for localized data.

Data Sources

Air quality: EPA AirNow - real-time and historical AQI data
Wildfire risk: FEMA National Risk Index
Mold risk: Derived from EPA, FEMA, Census ACS (humidity, housing age, flood history)
Monthly AQI: EPA Air Quality Statistics

Updated daily.

Frequently Asked Questions

Is the air safe to breathe in Miami?

Miami's average AQI is 56 (Moderate). Air quality is acceptable, but unusually sensitive individuals may experience respiratory symptoms during peak pollution times.

How many unhealthy air days does Miami have?

Miami has zero recorded unhealthy air quality days, which is excellent. Air quality can still vary seasonally due to wildfire smoke, pollen, or industrial activity.

What is the AQI in Miami?

The average Air Quality Index (AQI) in Miami is 56, categorized as Moderate. The primary pollutant is PM2.5. AQI ranges from 0-500, where 0-50 is Good, 51-100 Moderate, 101-150 Unhealthy for Sensitive Groups, and 151+ Unhealthy.

What is the wildfire risk in Miami?

Miami has a wildfire risk score of 64 out of 100. Moderate wildfire risk means smoke events are possible. Having a HEPA air purifier available is recommended.

Is mold a concern in Miami?

Miami has a mold risk score of 78 out of 100, based on humidity, precipitation, and temperature data. This is elevated - proper ventilation, dehumidifiers, and regular inspection of basements and bathrooms are important.

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