Czechia · Europe/Prague
Prague air quality
52
Moderate
CAMS model-based US AQI estimate
Highest pollutant sub-index: PM2.5
Model values for Oct 02 09:00 CEST · 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 particles27.3 µg/m³
- PM10Coarse particles27.7 µg/m³
- O3Ozone18.1 µg/m³
- NO2Nitrogen dioxide31.0 µg/m³
- SO2Sulphur dioxide5.4 µg/m³
- COCarbon monoxide377.9 µg/m³
Weather in Prague
See the temperature, rain and wind forecast for Prague.
Prague 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 |
|---|---|---|---|---|---|---|
| 16.3 | 16.7 | 39.0 | 19.9 | 3.4 | 288.0 | |
| 12.3 | 12.6 | 51.8 | 14.2 | 3.0 | 253.7 | |
| 10.8 | 11.1 | 58.2 | 12.2 | 3.0 | 239.8 | |
| 10.2 | 10.4 | 63.8 | 10.7 | 3.1 | 232.2 | |
| 10.0 | 10.2 | 69.2 | 9.6 | 3.1 | 226.9 | |
| 10.1 | 10.2 | 73.6 | 8.9 | 3.2 | 223.4 | |
| 10.2 | 10.4 | 76.6 | 8.5 | 3.2 | 221.2 | |
| 10.6 | 10.8 | 76.8 | 8.8 | 3.2 | 221.3 | |
| 11.7 | 11.9 | 71.2 | 11.2 | 3.3 | 228.0 | |
| 15.5 | 15.7 | 54.6 | 19.2 | 3.8 | 255.3 | |
| 17.4 | 17.7 | 48.0 | 20.4 | 4.1 | 269.4 | |
| 19.0 | 19.3 | 42.8 | 20.4 | 4.2 | 280.2 | |
| 21.8 | 22.2 | 37.4 | 21.2 | 4.4 | 293.3 | |
| 25.7 | 26.2 | 32.8 | 23.4 | 5.0 | 311.1 | |
| 28.5 | 29.0 | 28.6 | 25.8 | 5.3 | 322.8 | |
| 29.6 | 30.2 | 26.0 | 26.5 | 5.4 | 324.6 | |
| 30.9 | 31.5 | 24.5 | 26.2 | 5.6 | 329.3 | |
| 32.4 | 33.0 | 23.1 | 26.2 | 5.9 | 336.8 | |
| 34.2 | 34.8 | 21.5 | 27.4 | 6.5 | 348.6 | |
| 36.4 | 37.0 | 19.4 | 29.4 | 7.1 | 363.9 | |
| 39.1 | 39.7 | 16.0 | 32.4 | 7.7 | 385.8 | |
| 44.5 | 45.1 | 11.4 | 35.6 | 8.3 | 424.1 | |
| 55.4 | 56.1 | 12.5 | 33.6 | 9.5 | 498.2 | |
| 60.4 | 60.7 | 15.6 | 28.8 | 8.2 | 548.9 |
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 09:00 CEST. Retrieved: 2026-10-02T05:00:44.133202+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 10 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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