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Monterrey Moderate

Monterrey, Nuevo León

Updated: Mar 13, 2026, 11:00 AM

680500
Moderate

Air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution.

Current Weather

26.8°C
Temperature
23%
Humidity
5.5
mph wind
Clear sky
Conditions

Pollutant Breakdown

68
PM2.5
µg/m³ · Fine particles
65
PM10
µg/m³ · Coarse particles
18.4
Ozone
ppb · Ground-level ozone
38.3
NO₂
ppb · Nitrogen dioxide
13.2
SO₂
ppb · Sulfur dioxide
21.3
CO
ppm · Carbon monoxide

Dominant pollutant: PM25

PM2.5 Forecast (next 7 days)

Wed
3/11
20
avg
Thu
3/12
33
avg
Fri
3/13
53
avg
Sat
3/14
54
avg
Sun
3/15
37
avg
Mon
3/16
17
avg
Tue
3/17
22
avg

Health Guidance

⚠️
Unusually sensitive people: Consider reducing prolonged outdoor exertion.
General population: No restrictions for most people.
💨
Keep windows closed if AQI is Unhealthy or above. Use HEPA air purifiers indoors.

Data from: INECC - Instituto Nacional de Ecología y Cambio Climático, World Air Quality Index Project

Is the air safe in Monterrey today?

The current Air Quality Index (AQI) in Monterrey is 68, which is classified as "Moderate". Air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution.

The AQI scale runs from 0 to 500. Values of 0–50 are Good, 51–100 are Moderate, 101–150 are Unhealthy for Sensitive Groups, 151–200 are Unhealthy, 201–300 are Very Unhealthy, and 301–500 are Hazardous.

Air quality in Monterrey, Nuevo León is monitored by local environmental agencies and reported through the World Air Quality Index project. Data is updated hourly and includes PM2.5, PM10, ozone, nitrogen dioxide, sulfur dioxide, and carbon monoxide.

AQI Scale Reference

0–50
Good
51–100
Moderate
101–150
Unhealthy for Sensitive Groups
151–200
Unhealthy
201–300
Very Unhealthy
301+
Hazardous