Fine particles
10.5µg/m³Fair · 1 hourCAMS model • Open-Meteo
TlalpanAir quality, PM2.5 and PM10
Check PM2.5 and PM10 particle levels alongside ozone, nitrogen dioxide and other gases. Compare the latest available concentrations with recent days and explore changes in air pollution through the available historical records.
Tlalpan - latest available concentrations (September 26, 2026, 19:00 local time): PM2.5: 10.5 µg/m³, PM10: 10.5 µg/m³, O₃: 82 µg/m³, NO₂: 22.7 µg/m³, SO₂: 6.9 µg/m³, CO: 311 µg/m³. These are hourly CAMS model values for a point representing the city.
Air quality questions →
1 weather warning in effect for Mexico
Tlalpan · Air pollutant concentrations
Data time: September 26, 2026 · 19:00 · local timeParticulate matter
10.5µg/m³Good · 1 hourOzone
82µg/m³Fair · 1 hourNitrogen dioxide
22.7µg/m³Fair · 1 hourSulphur dioxide
6.9µg/m³Good · 1 hourCarbon monoxide
311µg/m³PM2.5 vs PM10 - what is the difference? → · Models and monitoring stations →
DAILY DATA · Tlalpan
Tlalpan - air pollution over recent days (2026-08-30 - 2026-09-25)
Concentrations of all available pollutants for this city.
PM2.5Lowest 11.1 2026-09-24Highest 23.96 2026-09-052026-08-30 - 2026-09-25
PM10Lowest 11.5 2026-09-24Highest 24.72 2026-08-302026-08-30 - 2026-09-25
O₃Lowest 43.21 2026-08-31Highest 82.88 2026-09-042026-08-30 - 2026-09-25
NO₂Lowest 23.08 2026-08-30Highest 41.63 2026-09-022026-08-30 - 2026-09-25
SO₂Lowest 9.45 2026-08-31Highest 17.65 2026-09-062026-08-30 - 2026-09-25
COLowest 237.25 2026-09-20Highest 816.96 2026-09-032026-08-30 - 2026-09-25
Scroll the chart or table sideways to see the full period.
| Pollutant | 2026-09-25 | 2026-09-24 | 2026-09-23 | 2026-09-22 | 2026-09-21 | 2026-09-20 | 2026-09-19 | 2026-09-06 | 2026-09-05 | 2026-09-04 | 2026-09-03 | 2026-09-02 | 2026-09-01 | 2026-08-31 | 2026-08-30 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 | 14.75 | 11.1 | 18.05 | 15.38 | 23.68 | 23.08 | 14.45 | 20.7 | 23.96 | 21.73 | 18.05 | 19.18 | 15.03 | 13.72 | 19.2 |
| PM10 | 15.07 | 11.5 | 18.41 | 15.51 | 24.38 | 24.26 | 15.44 | 20.93 | 24.37 | 22.12 | 18.56 | 20.18 | 16.7 | 16.55 | 24.72 |
| O₃ | 72.04 | 69.42 | 61 | 77.63 | 75.71 | 70.79 | 75.25 | 66.58 | 73.42 | 82.88 | 62.71 | 56.96 | 50.75 | 43.21 | 57.71 |
| NO₂ | 30.15 | 31.23 | 38.86 | 38.37 | 35.8 | 27.49 | 26.53 | 29.52 | 30.81 | 40.43 | 38.57 | 41.63 | 37.93 | 29.15 | 23.08 |
| SO₂ | 12.34 | 11.43 | 14.38 | 16.03 | 16.63 | 16.39 | 12.55 | 17.65 | 12.95 | 15.63 | 13.79 | 13.99 | 11.94 | 9.45 | 10.75 |
| CO | 283.67 | 352.83 | 410.13 | 303.67 | 277.33 | 237.25 | 331.5 | 472.88 | 323.67 | 528.33 | 816.96 | 726.17 | 599.71 | 547.29 | 348.58 |
A dot on the chart and a dash in the table indicate missing data. The latest day may be incomplete.
Air quality in nearby cities
All cities →Mexico↗
Mexico City
PM2.53.3
PM103.6
µg/m³
PM2.5 · GoodNO₂ 15.5O₃ 57
September 26, 202619:00
Mexico↗
Ciudad Nezahualcóyotl
PM2.53.3
PM103.6
µg/m³
PM2.5 · GoodNO₂ 15.5O₃ 57
September 26, 202619:00
Mexico↗
Naucalpan de Juárez Municipality
PM2.53.3
PM103.6
µg/m³
PM2.5 · GoodNO₂ 15.5O₃ 57
September 26, 202619:00
Mexico↗
Ecatepec de Morelos
PM2.53.3
PM103.6
µg/m³
PM2.5 · GoodNO₂ 15.5O₃ 57
September 26, 202619:00
Mexico↗
Puebla City
PM2.54.2
PM104.3
µg/m³
PM2.5 · GoodNO₂ 10O₃ 72
September 26, 202619:00
Mexico↗
Querétaro City
PM2.51.6
PM101.7
µg/m³
PM2.5 · GoodNO₂ 2.9O₃ 65
September 26, 202619:00
Mexico↗
Acapulco de Juárez
PM2.54.9
PM106.1
µg/m³
PM2.5 · GoodNO₂ 3.7O₃ 77
September 26, 202619:00
Mexico↗
León
PM2.51.7
PM101.9
µg/m³
PM2.5 · GoodNO₂ 4.5O₃ 71
September 26, 202619:00
Mexico · air quality in other cities
WEATHER & SURROUNDINGS
Mexico · weather forecast
Daily maximum and minimum temperatures. Forecast point: 15.0646, 120.7198. Forecast for a country reference point; conditions in the city may differ.
Scroll the forecast to see the following days.
Mexico · September 25, 2026: minimum temperature 25.2°C, maximum 31.7°C. Wind: 11.2 km/h. Humidity: 72%.
Full forecast: temperature, rainfall, wind and humidity
| Date | Day °C | Min °C | Max °C | Night °C | Rain mm | Wind m/s | Humidity % | Clouds % |
|---|---|---|---|---|---|---|---|---|
| 2026-09-25 | 29.2 | 25.2 | 31.7 | 25.3 | 6 | 3.1 | 72 | 18 |
| 2026-09-26 | 30.3 | 25.6 | 31.6 | 27.2 | 4.2 | 2.6 | 70 | 32 |
| 2026-09-27 | 32.3 | 25.1 | 33.4 | 25.2 | 2.9 | 3.5 | 62 | 100 |
| 2026-09-28 | 32.3 | 24.6 | 33.4 | 25.2 | 4.7 | 3 | 62 | 100 |
| 2026-09-29 | 31.5 | 24.1 | 31.5 | 25 | 31.1 | 2 | 67 | 8 |
| 2026-09-30 | 31.2 | 24.2 | 31.2 | 25.1 | 9.3 | 2.7 | 67 | 100 |
| 2026-10-01 | 30.9 | 24.2 | 30.9 | 24.7 | 25.3 | 2.3 | 68 | 72 |
| 2026-10-02 | 31.7 | 23.4 | 31.7 | 24.5 | 2 | 1.3 | 63 | 46 |
| 2026-10-03 | 30.7 | 22.8 | 30.9 | 25 | 3.4 | 3.6 | 60 | 100 |
| 2026-10-04 | 31.2 | 24.1 | 31.6 | 25.2 | 0.6 | 2.4 | 61 | 100 |
| 2026-10-05 | 25.5 | 23.8 | 25.5 | 23.8 | 43.3 | 8.4 | 92 | 100 |
| 2026-10-06 | 23.9 | 23.5 | 24.9 | 24.9 | 126.3 | 8.2 | 99 | 100 |
| 2026-10-07 | 25.6 | 24.3 | 25.6 | 24.7 | 92.1 | 10.4 | 90 | 100 |
| 2026-10-08 | 26.4 | 23.5 | 26.4 | 23.6 | 73.8 | 5.3 | 91 | 100 |
| 2026-10-09 | 24.9 | 22.3 | 27.1 | 22.9 | 10.9 | 2.8 | 91 | 100 |
| 2026-10-10 | 29.4 | 22.5 | 29.6 | 23.4 | 0.5 | 3.2 | 69 | 95 |
| 2026-10-11 | 29.9 | 23.1 | 30.4 | 23.8 | 0.3 | 3 | 67 | 100 |
UV index by day · Mexico
Data for a country reference point. Local conditions may differ.
SPF 30-50, hat and sunglasses are a must. Better to stay in the shade 11:00-15:00.
0-2 low3-5 moderate6-7 high8-10 very high11+ extreme
Scroll the forecast to see the following days.
Mexico · September 26, 2026: UV index: 7.9 .
| Indicator | 2026-09-26 | 2026-09-27 | 2026-09-28 | 2026-09-29 | 2026-09-30 | 2026-10-01 | 2026-10-02 | 2026-10-03 | 2026-10-04 | 2026-10-05 | 2026-10-06 | 2026-10-07 | 2026-10-08 | 2026-10-09 | 2026-10-10 | 2026-10-11 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index | 7.9 | 8.7 | 8.5 | 8.1 | 7.6 | 8.3 | 7.6 | 7.8 | 6.7 | 0.9 | 0.8 | 1.6 | 2.1 | 4.3 | 6.9 | — |
AIR QUALITY QUESTIONS
Tlalpan · air pollution - questions and answers
What do the latest air quality data show for Tlalpan?
Tlalpan - latest available concentrations (September 26, 2026, 19:00 local time): PM2.5: 10.5 µg/m³, PM10: 10.5 µg/m³, O₃: 82 µg/m³, NO₂: 22.7 µg/m³, SO₂: 6.9 µg/m³, CO: 311 µg/m³. These are hourly CAMS model values for a point representing the city.
When was PM2.5 highest in Tlalpan over the past week?
The highest available daily mean PM2.5 was 23.7 µg/m³ (September 21, 2026). This comparison covers 7 days with data in the seven days before September 26, 2026. The day of the latest reading is excluded because it may be incomplete.
Is the PM2.5 concentration for Tlalpan an AQI score?
No. PM2.5 and PM10 are concentrations in µg/m³. AQI is a separate index calculated using a defined scale. When comparing air quality, also check other pollutants, the date and the averaging period.
What UV index does the available forecast show for Tlalpan?
For September 26, 2026, the forecast UV index is 7.9. The UV section also shows the following available days. The forecast is for a country reference point (Mexico), not the city itself.
What wind speed is forecast for Tlalpan?
For September 25, 2026, forecast wind speed is 11.2 km/h. The weather table includes wind, temperature and other available parameters for subsequent days. These data describe a country reference point (Mexico); local wind may differ.
PM2.5 · PM10 · NO₂ · O₃
Understanding air quality and pollution data
What do PM2.5 and PM10 mean?
PM2.5 and PM10 are fractions of airborne particulate matter. PM2.5 covers fine particles up to 2.5 micrometres in diameter, while PM10 covers particles up to 10 micrometres. Concentrations in µg/m³ tell you how many micrograms of particles are present in a cubic metre of air. Compare values over the same time period.
Where does the air pollution data come from?
The latest concentrations come from the CAMS atmospheric model via Open-Meteo for each city’s coordinates. Values describe a model area, so conditions on individual streets may differ. Historical monitoring station data is shown separately where available.
How does PM2.5 concentration differ from AQI?
PM2.5 is the concentration of one particle fraction, expressed in µg/m³. AQI is an index calculated using a particular scale and thresholds. The pollutant cards show concentrations. Our city ranking compares PM2.5; PM10, ozone, nitrogen dioxide and other available gases add to the picture of air quality.
Which dates do the values and charts cover?
Each current value has a data date and time. Current concentration cards show the latest available hour, daily charts summarise individual days, and monthly records let you compare longer periods. These values represent different time intervals.
How can I check pollution in my city?
Search for your city and open its air quality page. Start with PM2.5 and PM10, then check the other available pollutants and the data timestamp. Charts and tables help you compare concentrations over time. Weather and historical climate information complement the pollution data.