Latvia · Europe/Riga
Riga air quality
55
Moderate
CAMS model-based US AQI estimate
Highest pollutant sub-index: PM2.5
Model values for Oct 02 10:00 EEST · 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 particles12.0 µg/m³
- PM10Coarse particles12.6 µg/m³
- O3Ozone39.4 µg/m³
- NO2Nitrogen dioxide4.2 µg/m³
- SO2Sulphur dioxide0.7 µg/m³
- COCarbon monoxide178.5 µg/m³
Weather in Riga
See the temperature, rain and wind forecast for Riga.
Riga 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 |
|---|---|---|---|---|---|---|
| 9.9 | 10.4 | 44.1 | 3.8 | 0.7 | 176.9 | |
| 7.5 | 7.9 | 51.3 | 3.3 | 0.8 | 174.6 | |
| 5.5 | 5.8 | 62.3 | 2.7 | 1.0 | 170.3 | |
| 3.9 | 4.0 | 73.7 | 2.3 | 1.1 | 165.7 | |
| 3.3 | 3.5 | 78.9 | 2.3 | 1.2 | 163.2 | |
| 3.1 | 3.3 | 80.2 | 2.4 | 1.2 | 161.7 | |
| 3.1 | 3.2 | 79.2 | 2.9 | 1.1 | 161.4 | |
| 3.2 | 3.3 | 70.7 | 4.2 | 1.1 | 162.7 | |
| 3.6 | 3.7 | 61.5 | 6.2 | 1.1 | 167.3 | |
| 3.9 | 3.9 | 56.8 | 6.6 | 1.1 | 171.1 | |
| 4.2 | 4.2 | 54.1 | 6.8 | 1.1 | 175.1 | |
| 4.0 | 4.0 | 52.9 | 6.3 | 1.1 | 175.0 | |
| 3.9 | 4.0 | 51.1 | 6.1 | 1.1 | 175.6 | |
| 3.8 | 3.8 | 48.9 | 6.2 | 1.1 | 175.2 | |
| 3.3 | 3.3 | 47.5 | 6.0 | 1.1 | 172.0 | |
| 2.9 | 3.0 | 45.8 | 5.8 | 1.1 | 170.0 | |
| 2.8 | 2.8 | 44.3 | 5.6 | 1.0 | 168.5 | |
| 2.6 | 2.7 | 42.9 | 5.4 | 1.0 | 167.1 | |
| 2.6 | 2.6 | 41.4 | 5.3 | 0.9 | 165.9 | |
| 2.5 | 2.6 | 40.1 | 5.2 | 0.9 | 164.8 | |
| 2.7 | 2.7 | 38.8 | 5.3 | 0.9 | 164.8 | |
| 3.2 | 3.2 | 37.7 | 5.6 | 1.0 | 167.3 | |
| 3.5 | 3.5 | 37.1 | 5.2 | 1.1 | 168.8 | |
| 3.3 | 3.3 | 38.7 | 4.4 | 1.3 | 169.1 |
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 10:00 EEST. Retrieved: 2026-10-02T05:01:50.557167+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 17 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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