Fine particles
12.3µg/m³CAMS model • Open-Meteo
ChileAir quality, PM2.5 and PM10
Compare air quality across cities in this country. Explore PM2.5, PM10 and other pollutant concentrations, check data timestamps, and view recent trends and historical charts.
Chile - average concentrations across available points: PM2.5: 12.3 µg/m³, PM10: 16 µg/m³, O₃: 40.9 µg/m³, NO₂: 13.7 µg/m³, SO₂: 8.1 µg/m³, CO: 468.2 µg/m³. Date range: September 25, 2026. Each point contributes its latest available hourly value; this is not a daily or population-weighted average.
Lowest PM2.5: Punta Arenas (2 µg/m³). Highest PM2.5: Santiago (45.8 µg/m³). This comparison covers 20 cities on September 25, 2026 using their latest available hourly values. Reading times may differ; this is not an annual-average ranking.
Air quality questions →All cities · Chile
20 citiesChile↗
Santiago
PM2.545.8
PM1046.6
µg/m³
PM2.5 · ModerateNO₂ 81.7O₃ 10
September 25, 202622:00
Chile↗
Puente Alto
PM2.542.1
PM1042.7
µg/m³
PM2.5 · ModerateNO₂ 40O₃ 82
September 25, 202622:00
Chile↗
Antofagasta
PM2.512.7
PM1019
µg/m³
PM2.5 · FairNO₂ 2.4O₃ 56
September 25, 202622:00
Chile↗
Viña del Mar
PM2.510.7
PM1011.9
µg/m³
PM2.5 · FairNO₂ 25.2O₃ 10
September 25, 202622:00
Chile↗
Talcahuano
PM2.56.1
PM109.5
µg/m³
PM2.5 · FairNO₂ 3.8O₃ 38
September 25, 202622:00
Chile↗
Temuco
PM2.57.7
PM108.4
µg/m³
PM2.5 · FairNO₂ 14.9O₃ 19
September 25, 202622:00
Chile↗
Iquique
PM2.55
PM107.6
µg/m³
PM2.5 · GoodNO₂ 1.1O₃ 65
September 25, 202622:00
Chile↗
Concepción
PM2.56.1
PM109.5
µg/m³
PM2.5 · FairNO₂ 3.8O₃ 38
September 25, 202622:00
Chile↗
Rancagua
PM2.527
PM1027.7
µg/m³
PM2.5 · ModerateNO₂ 20.3O₃ 65
September 25, 202622:00
Chile↗
Talca
PM2.513.1
PM1014.2
µg/m³
PM2.5 · FairNO₂ 23.2O₃ 15
September 25, 202622:00
Chile↗
Arica
PM2.57.1
PM1017.5
µg/m³
PM2.5 · FairNO₂ 1.1O₃ 58
September 25, 202622:00
Chile↗
Coquimbo
PM2.517.2
PM1020.5
µg/m³
PM2.5 · ModerateNO₂ 22.9O₃ 28
September 25, 202622:00
Chile↗
Port Montt
PM2.53.6
PM104.8
µg/m³
PM2.5 · GoodNO₂ 4.5O₃ 34
September 25, 202622:00
Chile↗
Chillán
PM2.55.8
PM107.2
µg/m³
PM2.5 · FairNO₂ 8.4O₃ 35
September 25, 202622:00
Chile↗
Calama
PM2.511
PM1038.8
µg/m³
PM2.5 · FairNO₂ 2.5O₃ 70
September 25, 202622:00
Chile↗
Osorno
PM2.52.9
PM104.4
µg/m³
PM2.5 · GoodNO₂ 2.6O₃ 31
September 25, 202622:00
Chile↗
Valdivia
PM2.53.8
PM105.7
µg/m³
PM2.5 · GoodNO₂ 1.3O₃ 37
September 25, 202622:00
Chile↗
Copiapó
PM2.510.9
PM1013.9
µg/m³
PM2.5 · FairNO₂ 5.2O₃ 51
September 25, 202622:00
Chile↗
Los Ángeles
PM2.55.9
PM107.2
µg/m³
PM2.5 · FairNO₂ 7.4O₃ 29
September 25, 202622:00
Chile↗
Punta Arenas
PM2.52
PM103.4
µg/m³
PM2.5 · GoodNO₂ 1.3O₃ 47
September 25, 202622:00
PM2.5 vs PM10 - what is the difference? → · Models and monitoring stations →
AVERAGE ACROSS AVAILABLE COUNTRY POINTS
Latest concentrations · Chile
Particulate matter
16µg/m³Ozone
40.9µg/m³Nitrogen dioxide
13.7µg/m³Sulphur dioxide
8.1µg/m³Carbon monoxide
468.2µg/m³Average of the latest available hour at each model point. This is neither a population-weighted nor a daily average.
DAILY DATA · Chile
Chile - air pollution over recent days (2026-08-30 - 2026-09-24)
Averages across available points in the country. These are not population-weighted averages.
PM2.5Lowest 7.79 2026-09-21Highest 15.78 2026-09-242026-08-30 - 2026-09-24
PM10Lowest 13.81 2026-09-04Highest 20.77 2026-09-242026-08-30 - 2026-09-24
O₃Lowest 49.15 2026-09-24Highest 61.26 2026-09-182026-08-30 - 2026-09-24
NO₂Lowest 2.72 2026-09-20Highest 10.77 2026-09-242026-08-30 - 2026-09-24
SO₂Lowest 3.97 2026-09-20Highest 10.41 2026-09-242026-08-30 - 2026-09-24
COLowest 104.4 2026-09-20Highest 345.96 2026-09-012026-08-30 - 2026-09-24
Scroll the chart or table sideways to see the full period.
| Pollutant | 2026-09-24 | 2026-09-23 | 2026-09-22 | 2026-09-21 | 2026-09-20 | 2026-09-19 | 2026-09-18 | 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 | 15.78 | 13.64 | 9.32 | 7.79 | 8.22 | 12.08 | 13.53 | 10.72 | 10.05 | 8.15 | 10.64 | 11.69 | 11.44 | 8.6 | 9.33 |
| PM10 | 20.77 | 19.15 | 14.74 | 14.3 | 16.91 | 19.05 | 17.12 | 17.97 | 16.23 | 13.81 | 16.41 | 17.49 | 17.39 | 14.68 | 18.24 |
| O₃ | 49.15 | 51.32 | 51.8 | 52.45 | 56.83 | 57.04 | 61.26 | 58.62 | 54.98 | 56.01 | 57.42 | 59.67 | 53.98 | 54.54 | 52.54 |
| NO₂ | 10.77 | 9.27 | 7.9 | 4.74 | 2.72 | 7.32 | 9.47 | 5.65 | 6.25 | 6.05 | 6.92 | 8.92 | 9.81 | 6.76 | 5.1 |
| SO₂ | 10.41 | 7.81 | 5.77 | 4.65 | 3.97 | 7.16 | 7.4 | 7.04 | 5.11 | 4.88 | 6.92 | 8.37 | 7.48 | 7.29 | 6.67 |
| CO | 293.95 | 283.94 | 248.47 | 189.59 | 104.4 | 197.17 | 289.81 | 171.91 | 212.2 | 280.14 | 234.36 | 288.73 | 345.96 | 269.79 | 161.45 |
A dot on the chart and a dash in the table indicate missing data. The latest day may be incomplete.
AIR QUALITY ARCHIVE · Chile
Chile - air pollution history (2015-09 - 2020-05)
Compare monthly particle and gas concentrations in the available archive.
PM2.5Lowest 8.15 2018-11Highest 46.2 2016-062015-09 - 2020-05
PM10Lowest 27.9 2018-11Highest 58.4 2016-062015-09 - 2020-05
O₃Lowest 13.3 2016-06Highest 42 2019-112015-09 - 2020-05
NO₂Lowest 10.1 2019-12Highest 39.3 2016-062015-09 - 2020-05
Scroll the chart or table sideways to see the full period.
| Pollutant | 2020-05 | 2020-04 | 2020-03 | 2020-02 | 2020-01 | 2019-12 | 2019-11 | 2019-10 | 2019-09 | 2019-08 | 2019-07 | 2019-06 | 2019-05 | 2019-04 | 2019-03 | 2019-02 | 2019-01 | 2018-12 | 2018-11 | 2018-10 | 2018-09 | 2018-08 | 2018-07 | 2018-06 | 2018-05 | 2018-04 | 2018-03 | 2018-02 | 2018-01 | 2017-12 | 2017-11 | 2017-10 | 2017-09 | 2017-08 | 2017-07 | 2017-06 | 2017-05 | 2017-04 | 2017-03 | 2017-02 | 2017-01 | 2016-12 | 2016-11 | 2016-10 | 2016-09 | 2016-08 | 2016-07 | 2016-06 | 2016-05 | 2016-04 | 2016-03 | 2016-02 | 2016-01 | 2015-12 | 2015-11 | 2015-10 | 2015-09 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 | 24.6 | 16.1 | 10.5 | 11.2 | 9.96 | 9.46 | 9.99 | 11.6 | 14.5 | 25.2 | 29.9 | 23.2 | 22.9 | 18.7 | 11 | 12.1 | 9.69 | — | 8.15 | 10.3 | 17.6 | 25.5 | 35.6 | 34.2 | 26.3 | 19.3 | 12.3 | 9.97 | 10.3 | 9.81 | 9.84 | 11 | 16.8 | 20.3 | 34.7 | 31.8 | 25 | 16.4 | 12.6 | 10.6 | 11.2 | 9.53 | 10.2 | 11.3 | 21.1 | 26.1 | 37.5 | 46.2 | 35.8 | 16.7 | 15.8 | 11.4 | 10.1 | 10.7 | 9.86 | 12.3 | 17.3 |
| PM10 | 48.1 | 41.5 | 33.7 | 37.4 | 35.8 | 34.4 | 32.2 | 30.6 | 29.7 | 45.9 | 47.4 | 44.1 | 50.3 | 45.6 | 40.7 | 37.8 | 35.8 | — | 27.9 | 29.3 | 37.5 | 45.4 | 47.3 | 53.4 | 47.4 | 45.4 | 38.5 | 34.1 | 33.3 | 31.3 | 30.2 | 29.4 | 38.9 | 33.7 | 50.5 | 45.1 | 46.2 | 38.9 | 36.3 | 34.3 | 38.7 | 29.5 | 33.8 | 31.9 | 43.2 | 43.2 | 49.4 | 58.4 | 47.2 | 39 | 43.9 | 37.3 | 33.6 | 31.9 | 29.2 | 34.2 | 35.1 |
| O₃ | 29.2 | 35.3 | 34.6 | 36 | 39.2 | 39.8 | 42 | 35.5 | 33.9 | 25.3 | 17.4 | 18.2 | 22.5 | 29.9 | 35 | 35.6 | 31.1 | — | 31.2 | 32.2 | 29 | 25.7 | 21.6 | 16.1 | 20.9 | 26.4 | 30.4 | 30.7 | 33.1 | 35.6 | 34.4 | 32.7 | 31.2 | 24.4 | 16.2 | 13.8 | 15.2 | 22.3 | 27.7 | 28.1 | 32.6 | 34.7 | 36.2 | 31.2 | 32.9 | 22.4 | 14.7 | 13.3 | 14.6 | 20.9 | 32.9 | 33.6 | 31.5 | 36.2 | 32.9 | 29.4 | 26.1 |
| NO₂ | 15.9 | 15 | 11.8 | 13.6 | 10.2 | 10.1 | 10.5 | 10.8 | 12.2 | 19.9 | 23.8 | 29 | 25.9 | 25 | 16.5 | 15.1 | 14 | — | 13.3 | 15.6 | 20.6 | 29.9 | 31.1 | 33.5 | 32.5 | 28.2 | 22.6 | 15.3 | 15.4 | 16.7 | 18.4 | 15 | 18.9 | 20.3 | 29.4 | 28.3 | 27.4 | 20.2 | 19.5 | 15.6 | 13.3 | 13.5 | 15.3 | 19.3 | 24.6 | 34 | 39.2 | 39.3 | 32.2 | 29 | 23.7 | 18.1 | 15.5 | 16.8 | 15 | 21.4 | 24.9 |
A dot on the chart and a dash in the table indicate missing data. Historical values do not describe today’s air quality.
Environment and quality of life ratings · Chile
Archived ratings of the local environment: green spaces, cleanliness, noise and water quality. Opinion indicators are separate from pollutant concentration measurements.
| Indicator | Chile | Argentina | Uruguay | Paraguay | Bolivia | Montenegro |
|---|---|---|---|---|---|---|
| Green and Parks in the City | 40% | 65% | 65% | 46% | 55% | 53% |
| Pleasure of spending time in the city | 35% | 64% | 67% | 49% | 40% | 69% |
| Air Pollution | 77% | 42% | 29% | 56% | 64% | 40% |
| Garbage Disposal | 40% | 48% | 34% | 30% | 34% | 42% |
| Availability and quality of drinking water | 58% | 69% | 73% | 57% | 50% | 71% |
| Cleanliness and tidiness | 36% | 43% | 38% | 26% | 32% | 51% |
| Noise and Light pollution | 60% | 53% | 48% | 52% | 59% | 32% |
| Water Pollution | 62% | 55% | 46% | 65% | 66% | 38% |
WEATHER & SURROUNDINGS
Chile · weather forecast
Daily maximum and minimum temperatures. Forecast point: -30, -71.
Scroll the forecast to see the following days.
Chile · September 23, 2026: minimum temperature 9.9°C, maximum 22.6°C. Wind: 9.8 km/h. Humidity: 62%.
Full forecast: temperature, rainfall, wind and humidity
| Date | Day °C | Min °C | Max °C | Night °C | Rain mm | Wind m/s | Humidity % | Clouds % |
|---|---|---|---|---|---|---|---|---|
| 2026-09-23 | 21.5 | 9.9 | 22.6 | 13 | — | 2.7 | 62 | 100 |
| 2026-09-24 | 22.4 | 11.6 | 22.7 | 13 | — | 3.5 | 57 | 97 |
| 2026-09-25 | 23.7 | 11.6 | 24.4 | 15.7 | — | 3.9 | 22 | 8 |
| 2026-09-26 | 23 | 12.2 | 27.5 | 21.9 | — | 3.7 | 25 | 75 |
| 2026-09-27 | 26.1 | 18.7 | 27.1 | 19.7 | — | 4.1 | 34 | 40 |
| 2026-09-28 | 22.3 | 17 | 23.1 | 17 | — | 4.2 | 41 | 100 |
| 2026-09-29 | 24.1 | 15.3 | 24.5 | 17.7 | 0.1 | 4.5 | 39 | 100 |
| 2026-09-30 | 21.5 | 14.7 | 26.2 | 19.9 | 7.3 | 3.4 | 47 | 92 |
| 2026-10-01 | 28.9 | 18.8 | 30.7 | 22.5 | 1 | 4 | 25 | 97 |
| 2026-10-02 | 22.5 | 15.2 | 22.5 | 15.2 | 0.7 | 4.7 | 42 | 100 |
| 2026-10-03 | 16.2 | 12.2 | 19.8 | 14.3 | 0.8 | 4.9 | 57 | 25 |
| 2026-10-04 | 20.2 | 13.1 | 22.3 | 17 | — | 3.3 | 31 | 100 |
| 2026-10-05 | 19.6 | 14.6 | 23 | 18.2 | — | 3.1 | 41 | 100 |
| 2026-10-06 | 22.7 | 15.2 | 24.9 | 18.3 | — | 4.1 | 29 | 100 |
| 2026-10-07 | 22.1 | 13.7 | 24 | 18.5 | — | 4.3 | 29 | 73 |
| 2026-10-08 | 22.6 | 18 | 25.5 | 19 | — | 2.9 | 26 | 100 |
| 2026-10-09 | 24.3 | 18.1 | 25.8 | 19.5 | — | 4.3 | 24 | 89 |
UV index by day · Chile
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.
Chile · September 25, 2026: UV index: 7.9 .
| Indicator | 2026-09-25 | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index | 7.9 | 7.6 | 8 | 8 | 7.9 | 7.3 | 8.1 | 7.3 | 8 | 4.2 | 6.7 | 7.6 | 8.1 | 6.2 | 7.7 | — |
AIR QUALITY QUESTIONS
Chile · air pollution - questions and answers
What do the latest air quality data show for Chile?
Chile - average concentrations across available points: PM2.5: 12.3 µg/m³, PM10: 16 µg/m³, O₃: 40.9 µg/m³, NO₂: 13.7 µg/m³, SO₂: 8.1 µg/m³, CO: 468.2 µg/m³. Date range: September 25, 2026. Each point contributes its latest available hourly value; this is not a daily or population-weighted average.
When was PM2.5 highest in Chile over the past week?
The highest available daily mean PM2.5 was 15.8 µg/m³ (September 24, 2026). This comparison covers 7 days with data in the seven days before September 25, 2026. The day of the latest reading is excluded because it may be incomplete.
Which cities in Chile have the cleanest and most polluted air by PM2.5?
Lowest PM2.5: Punta Arenas (2 µg/m³). Highest PM2.5: Santiago (45.8 µg/m³). This comparison covers 20 cities on September 25, 2026 using their latest available hourly values. Reading times may differ; this is not an annual-average ranking.
What period does the pollution history for Chile cover?
Available monthly means cover 2015-09 - 2020-05. The tables include PM2.5, PM10, O₃, NO₂. Missing values are marked with a dash, not treated as zero. Monthly archives and current model data may come from different sources.
Is the PM2.5 concentration for Chile 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 Chile?
For September 25, 2026, the forecast UV index is 7.9. The UV section also shows the following available days.
What wind speed is forecast for Chile?
For September 23, 2026, forecast wind speed is 9.8 km/h. The weather table includes wind, temperature and other available parameters for subsequent days.
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.