Peru · America/Lima
Lima air quality
59
Moderate
CAMS model-based US AQI estimate
Highest pollutant sub-index: PM2.5
Model values for Oct 02 02:00 -05 · 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 particles12.6 µg/m³
- PM10Coarse particles21.4 µg/m³
- O3Ozone34.6 µg/m³
- NO2Nitrogen dioxide17.1 µg/m³
- SO2Sulphur dioxide5.5 µg/m³
- COCarbon monoxide147.3 µg/m³
Weather in Lima
See the temperature, rain and wind forecast for Lima.
Lima 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 |
|---|---|---|---|---|---|---|
| 11.8 | 20.4 | 37.6 | 14.6 | 5.3 | 129.9 | |
| 10.8 | 18.4 | 38.8 | 13.2 | 5.3 | 116.9 | |
| 10.6 | 17.5 | 37.2 | 13.5 | 5.7 | 113.4 | |
| 10.5 | 16.7 | 34.0 | 15.4 | 6.3 | 122.4 | |
| 11.8 | 18.6 | 32.8 | 17.5 | 7.3 | 159.4 | |
| 12.6 | 22.0 | 40.8 | 15.3 | 7.0 | 169.9 | |
| 13.2 | 30.0 | 51.4 | 10.8 | 5.6 | 155.6 | |
| 14.8 | 39.5 | 62.4 | 6.5 | 4.7 | 136.6 | |
| 16.7 | 44.1 | 73.3 | 4.7 | 4.5 | 132.4 | |
| 19.3 | 53.2 | 82.1 | 3.7 | 4.2 | 129.7 | |
| 20.2 | 59.2 | 83.7 | 3.2 | 3.7 | 123.5 | |
| 20.6 | 64.3 | 79.8 | 3.2 | 3.4 | 122.6 | |
| 20.6 | 64.6 | 76.7 | 3.6 | 3.2 | 122.8 | |
| 20.4 | 63.7 | 71.7 | 4.7 | 3.2 | 127.1 | |
| 19.8 | 59.4 | 63.9 | 7.8 | 3.3 | 142.0 | |
| 18.9 | 51.5 | 53.9 | 13.3 | 3.7 | 165.9 | |
| 18.6 | 47.2 | 47.7 | 17.3 | 4.6 | 185.2 | |
| 18.4 | 47.6 | 46.8 | 16.4 | 5.4 | 175.0 | |
| 17.6 | 47.1 | 45.3 | 16.0 | 5.8 | 167.9 | |
| 17.3 | 45.7 | 43.9 | 16.0 | 6.2 | 164.5 | |
| 16.8 | 42.0 | 43.0 | 15.9 | 6.2 | 160.6 | |
| 16.1 | 35.9 | 43.5 | 14.9 | 5.8 | 153.0 | |
| 14.8 | 29.5 | 44.3 | 13.2 | 5.5 | 140.4 | |
| 13.9 | 25.1 | 43.2 | 12.0 | 5.3 | 133.3 |
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 02:00 -05. Retrieved: 2026-10-02T04:21:31.541263+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 19 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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