Chile · America/Santiago
Santiago air quality
106
Unhealthy for sensitive groups
CAMS model-based US AQI estimate
Highest pollutant sub-index: PM2.5
Model values for Oct 02 04:00 -03 · CAMS model estimate, may differ from monitoring stations and street-level conditions
Data may be delayed
AirNow by Skymory is an independent service; it is not affiliated with or endorsed by U.S. EPA or the official AirNow service.
Pollutants now (modeled)
- PM2.5Fine particles40.8 µg/m³
- PM10Coarse particles41.4 µg/m³
- O3Ozone10.6 µg/m³
- NO2Nitrogen dioxide68.4 µg/m³
- SO2Sulphur dioxide37.5 µg/m³
- COCarbon monoxide810.8 µg/m³
Weather in Santiago
See the temperature, rain and wind forecast for Santiago.
Santiago weather forecast on SkymoryNext 24 hours: PM2.5
Pollutant forecast
Hourly model samples in local time; no interpolation.
| Local time | PM2.5 µg/m³ | PM10 µg/m³ | O3 µg/m³ | NO2 µg/m³ | SO2 µg/m³ | CO µg/m³ |
|---|---|---|---|---|---|---|
| 41.6 | 42.1 | 10.0 | 69.4 | 40.4 | 803.9 | |
| 42.5 | 43.0 | 8.9 | 68.7 | 42.1 | 814.9 | |
| 44.1 | 44.6 | 8.2 | 66.8 | 43.3 | 863.1 | |
| 44.5 | 45.0 | 12.8 | 61.9 | 44.1 | 898.1 | |
| 51.8 | 52.3 | 19.6 | 67.6 | 44.7 | 1140.0 | |
| 41.3 | 41.9 | 54.9 | 50.6 | 39.7 | 779.7 | |
| 44.6 | 45.2 | 93.9 | 40.3 | 41.6 | 687.2 | |
| 41.6 | 42.1 | 131.2 | 28.1 | 37.4 | 595.8 | |
| 28.7 | 29.3 | 140.5 | 16.4 | 28.4 | 462.0 | |
| 22.0 | 22.7 | 141.4 | 10.0 | 22.7 | 374.1 | |
| 16.6 | 17.4 | 123.9 | 7.9 | 17.3 | 292.1 | |
| 16.7 | 18.0 | 92.7 | 7.1 | 12.7 | 215.8 | |
| 9.5 | 11.1 | 70.2 | 8.0 | 10.8 | 190.4 | |
| 8.8 | 10.6 | 52.5 | 11.7 | 10.4 | 199.7 | |
| 7.2 | 8.5 | 41.6 | 14.9 | 9.3 | 216.0 | |
| 7.1 | 8.5 | 36.7 | 16.4 | 10.9 | 214.4 | |
| 8.4 | 9.8 | 30.3 | 20.8 | 13.9 | 244.5 | |
| 9.1 | 10.7 | 28.3 | 21.7 | 16.0 | 243.6 | |
| 9.7 | 11.4 | 25.9 | 22.8 | 17.4 | 247.7 | |
| 10.1 | 12.0 | 24.4 | 23.5 | 18.5 | 248.4 | |
| 10.5 | 12.7 | 23.9 | 23.4 | 19.6 | 243.4 | |
| 10.5 | 12.8 | 22.9 | 23.4 | 20.3 | 239.0 | |
| 10.1 | 12.5 | 22.9 | 22.3 | 21.2 | 223.7 | |
| 10.0 | 12.6 | 22.0 | 21.8 | 22.0 | 213.5 |
Data details: about this air quality estimate
Values are modeled by the Copernicus Atmosphere Monitoring Service (CAMS) global forecast, extracted and converted by Skymory for this city. They are model estimates on a coarse grid, not measurements from monitoring stations, and they do not resolve street-level exposure.
- Model initialization: 2026-10-01T12:00:00+00:00. Values valid: Oct 02 04:00 -03. Retrieved: 2026-10-02T04:13:31.046875+00:00.
- Page generated from a snapshot with data state STALE_USABLE; model age 19.9 hours at generation.
- Nearest valid 0.4° model grid cell, about 21 km from the city point.
- Gases are converted with matching model-level 137 temperature, humidity, surface pressure (lnsp) and hybrid coefficients; particulate matter is read directly from the surface fields.
- AQI estimate completeness: COMPLETE (COMPLETE means all six pollutants have a complete model window).
The AQI estimate applies EPA breakpoints (May 2026) to explicit trailing model windows (PM 24 h, CO 8 h, NO2 1 h, SO2 and O3 per EPA rules). It is not a station observation, official daily maximum or NowCast, and the official AQI field remains unavailable.
Averaging windows used
- CO: 8h window
- NO2: 1h window
- O3: 1h, 8h window
- PM10: 24h window
- PM2.5: 24h window
- SO2: 1h, 24h window
Surface compatibility by pollutant
| Pollutant | Surface compatibility |
|---|---|
| PM2.5 | DIRECT_SURFACE |
| PM10 | DIRECT_SURFACE |
| O3 | DERIVABLE_SURFACE |
| NO2 | DERIVABLE_SURFACE |
| SO2 | DERIVABLE_SURFACE |
| CO | DERIVABLE_SURFACE |
Source and license
Contains modified Copernicus Atmosphere Monitoring Service information 2026; city extraction and concentration conversion. CAMS global atmospheric composition forecasts (ECMWF/CAMS). CC BY 4.0.
Provider times stay separate from page generation: collecting data or regenerating this page never resets the source time. Data sources and methodology
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