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

The latest data Last 7 days Quality of life
Latest air quality data: San Luis Potosí
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Pollution and air quality forecast for San Luis Potosí City. Today is Thursday, August 27, 2026. The following air pollution values have been recorded for San Luis Potosí City:
  1. particulate matter (PM2.5) dust - 10 (Good)
  2. particulate matter (PM10) suspended dust - 15 (Good)
  3. ozone (O3) - 84 (Moderate)
  4. nitrogen dioxide (NO2) - 2 (Good)
  5. sulfur dioxide (SO2) - 3 (Good)
  6. carbon monoxide (CO) - 148 (Good)
Real-time Air Quality Index (AQI) for San Luis Potosí City, Wednesday, August 26, 2026: 2.

air quality index: 1
AQI 2 Moderate

What is the air quality in San Luis Potosí City today? Is the air polluted in San Luis Potosí City?. Is there smog?

Today (Wednesday, August 26, 2026) air quality is moderate in San Luis Potosí City. Some pollutants in San Luis Potosí City may slightly affect very few hypersensitive individuals. Air pollutants in San Luis Potosí City may cause minor breathing discomfort to sensitive people.


What is the current level of PM2.5 in San Luis Potosí City? (particulate matter (PM2.5) dust)
Today's PM2.5 level is: 10 (Good) For comparison, the highest level of PM2.5 in San Luis Potosí City in the last 7 days was: 14 (Wednesday, August 26, 2026) and the lowest: 5 (Thursday, August 20, 2026).

What is the level of PM10 today in San Luis Potosí City? (particulate matter (PM10) suspended dust)
The current level of particulate matter PM10 in San Luis Potosí City is: 15 (Good)

How is the O3 level today in San Luis Potosí City? (ozone (O3))
84 (Moderate)

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

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

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



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

PM2,5 10 (Good)

PM10 15 (Good)

O3 84 (Moderate)

NO2 2 (Good)

SO2 3 (Good)

CO 148 (Good)

Data on air pollution from recent days in San Luis Potosí City

index 2026-08-26 2026-08-25 2026-08-24 2026-08-23 2026-08-22 2026-08-21 2026-08-20 2026-08-19
pm25 14
Moderate		 10
Good		 8
Good		 10
Good		 10
Good		 7
Good		 5
Good		 6
Good
pm10 20
Moderate		 14
Good		 10
Good		 14
Good		 14
Good		 12
Good		 7
Good		 9
Good
o3 68
Good		 65
Good		 70
Moderate		 73
Moderate		 76
Moderate		 71
Moderate		 70
Moderate		 77
Moderate
no2 6
Good		 6
Good		 4
Good		 5
Good		 4
Good		 2
Good		 2
Good		 2
Good
so2 3
Good		 2
Good		 2
Good		 3
Good		 3
Good		 3
Good		 2
Good		 2
Good
co 201
Good		 176
Good		 139
Good		 135
Good		 130
Good		 131
Good		 145
Good		 149
Good
data source »

Quality of life in San Luis Potosí City

Green and Parks in the City

San Luis Potosí City 59%

Philippines: 45% Taiwan: 53% Hong Kong: 52% Vietnam: 42%

Pleasure of spending time in the city

San Luis Potosí City 61%

Philippines: 39% Taiwan: 47% Hong Kong: 43% Vietnam: 30%

Air Pollution

San Luis Potosí City 50%

Philippines: 64% Taiwan: 61% Hong Kong: 67% Vietnam: 78%

Garbage Disposal

San Luis Potosí City 54%

Philippines: 35% Taiwan: 65% Hong Kong: 52% Vietnam: 24%

Availability and quality of drinking water

San Luis Potosí City 48%

Philippines: 54% Taiwan: 54% Hong Kong: 66% Vietnam: 43%

Cleanliness and tidiness

San Luis Potosí City 56%

Philippines: 38% Taiwan: 56% Hong Kong: 54% Vietnam: 29%

Noise and Light pollution

San Luis Potosí City 33%

Philippines: 60% Taiwan: 59% Hong Kong: 66% Vietnam: 65%

Water Pollution

San Luis Potosí City 60%

Philippines: 74% Taiwan: 58% Hong Kong: 53% Vietnam: 73%
Source: Numbeo


San Luis Potosí

Wednesday, August 26, 2026 at 7:00 PM

PM2,5 10 (Good)

particulate matter (PM2.5) dust

PM10 15 (Good)

particulate matter (PM10) suspended dust

O3 84 (Moderate)

ozone (O3)

NO2 2.1 (Good)

nitrogen dioxide (NO2)

SO2 2.8 (Good)

sulfur dioxide (SO2)

CO 148 (Good)

carbon monoxide (CO)

San Luis Potosí

index 2026-08-19 2026-08-20 2026-08-21 2026-08-22 2026-08-23 2026-08-24 2026-08-25 2026-08-26
pm25 5.8 5 7.4 10 10 7.7 10 14
pm10 8.8 7.3 12 14 14 9.8 14 20
o3 77 70 71 76 73 70 65 68
no2 2 1.9 2 3.7 4.6 4.2 5.9 5.9
so2 2.4 2.2 2.6 3 3 1.9 1.9 3.1
co 149 145 131 130 135 139 176 201

* Pollution data source: https://openaq.org () The data is licensed under CC-By 4.0

🌦️ Weather · 16-day Forecast — Mexico

🌦️ WEATHER · 16-DAY FORECASTMexico🌧️27°RainToday · ↑29° ↓26°💨 6 km/h · 💧 80%Tue25.08🌧️29°26°Wed26.08🌧️31°26°Thu27.08🌧️30°25°Fri28.08🌧️27°24°Sat29.08🌧️26°24°Sun30.08🌧️27°25°Mon31.08🌧️26°26°Tue1.09🌧️28°26°Wed2.09🌧️29°25°Thu3.09🌧️29°24°Fri4.09🌧️28°25°Sat5.09🌧️29°25°Sun6.09🌧️31°25°Mon7.09☁️31°24°Tue8.09🌧️29°24°Wed9.09🌧️25°24°pollution-alert.com · August 27, 2026

16-day weather forecast for Mexico: today around 29°C (rain), lows near 26°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 — Mexico

☀️ UV INDEX · 16-DAY FORECASTMexico03681111+7.8UV HIGHtoday, day maxSPF 30-50, hat and sunglasses are a must. Better tostay in the shade 11:00-15:00.⏱ Unprotected fair skin can burn in about 25 min8Wed26.089Thu27.083Fri28.081Sat29.081Sun30.082Mon31.086Tue1.096Wed2.097Thu3.091Fri4.097Sat5.093Sun6.094Mon7.099Tue8.092Wed9.094Thu10.090-2 low3-5 moderate6-7 high8-10 very high11+ extremepollution-alert.com · August 27, 2026

The UV index in Mexico today is 7.8 (high) — unprotected fair skin can burn in about 25 minutes.

📍 Air quality in nearby cities

Live PM2.5 around San Luis Potosí — compare nearby locations.

Frequently asked questions

Is the air safe to breathe in San Luis Potosí City today?
The current average PM2.5 across San Luis Potosí City is about 10 µg/m³, rated “Good”. Air quality is good — outdoor activities are fine for everyone.
What is the current PM2.5 level in San Luis Potosí City?
Right now PM2.5 in San Luis Potosí City averages about 10 µg/m³ (“Good”). PM2.5 are fine particles small enough to reach the lungs and bloodstream.
Which day last week had the worst air in San Luis Potosí City?
Over the past week, the highest daily PM2.5 in San Luis Potosí City was recorded on Wednesday, August 26 (about 14 µg/m³).
What is the UV index in San Luis Potosí City today?
The UV index in San Luis Potosí City today is 7.8 (high) — unprotected fair skin can burn in about 25 minutes.
Does today's wind help disperse smog in San Luis Potosí City?
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.