Air Quality in Monterrey Today — Live AQI, PM2.5 & PM10, Smog, Weather and Forecast

Pollution and air quality forecast for Monterrey. Today is Thursday, August 27, 2026. The following air pollution values have been recorded for Monterrey:

1. particulate matter (PM2.5) dust - 15 (Moderate)
2. particulate matter (PM10) suspended dust - 23 (Moderate)
3. ozone (O3) - 90 (Moderate)
4. nitrogen dioxide (NO2) - 7 (Good)
5. sulfur dioxide (SO2) - 3 (Good)
6. carbon monoxide (CO) - 227 (Good)

Real-time Air Quality Index (AQI) for Monterrey, Wednesday, August 26, 2026: 2.

What is the current level of PM2.5 in Monterrey? (particulate matter (PM2.5) dust)
Today's PM2.5 level is: 15 (Moderate) For comparison, the highest level of PM2.5 in Monterrey in the last 7 days was: 13 (Wednesday, August 26, 2026) and the lowest: 7 (Sunday, August 23, 2026).

What is the level of PM10 today in Monterrey? (particulate matter (PM10) suspended dust)
The current level of particulate matter PM10 in Monterrey is: 23 (Moderate)

How is the O3 level today in Monterrey? (ozone (O3))
90 (Moderate)

How high is the level of NO2? (nitrogen dioxide (NO2))
7 (Good)

What is the level of SO2 pollution? (sulfur dioxide (SO2))
3 (Good)

How high is the CO level? (carbon monoxide (CO))
227 (Good)

Current data Wednesday, August 26, 2026 at 7:00 PM

Quality of life in Monterrey

Monterrey

Wednesday, August 26, 2026 at 7:00 PM

🌦️ Weather · 16-day Forecast — Monterrey

16-day weather forecast for Monterrey: today around 36°C (clear sky), lows near 23°C. Daily temperature and conditions, updated every day. Strong wind (about 22 km/h) is actively clearing smog and dust away.

☀️ UV Index · 16-day Forecast — Monterrey

The UV index in Monterrey today is 8.5 (very high) — unprotected fair skin can burn in about 25 minutes.

📍 Air quality in nearby cities

Live PM2.5 around Monterrey — compare nearby locations.

• Aguascalientes 5 µg/m³
• AustinUnited States 10 µg/m³
• Guadalajara 16 µg/m³
• Chihuahua City 3 µg/m³
• HoustonUnited States 15 µg/m³
• Mexico City 20 µg/m³
• Ecatepec de Morelos 20 µg/m³
• Puebla City 10 µg/m³

Frequently asked questions

Is the air safe to breathe in Monterrey today?

The current average PM2.5 across Monterrey is about 15 µg/m³, rated “Moderate”. Air quality is acceptable, but unusually sensitive people should limit prolonged outdoor exertion.

What is the current PM2.5 level in Monterrey?

Right now PM2.5 in Monterrey averages about 15 µg/m³ (“Moderate”). PM2.5 are fine particles small enough to reach the lungs and bloodstream.

Which day last week had the worst air in Monterrey?

Over the past week, the highest daily PM2.5 in Monterrey was recorded on Wednesday, August 26 (about 13 µg/m³).

What is the UV index in Monterrey today?

The UV index in Monterrey today is 8.5 (very high) — unprotected fair skin can burn in about 25 minutes.

Does today's wind help disperse smog in Monterrey?

Strong wind (about 22 km/h) is actively clearing smog and dust away.

How is air quality measured?

Air quality here is based on PM2.5 — the concentration of fine particulate matter in µg/m³. Lower values mean cleaner air. Data is updated daily from Open-Meteo.