Iran · Asia/Tehran
Tehran air quality
109
Unhealthy for sensitive groups
CAMS model-based US AQI estimate
Highest pollutant sub-index: PM2.5
Model values for Oct 02 10:30 +0330 · 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 particles29.6 µg/m³
- PM10Coarse particles96.5 µg/m³
- O3Ozone87.1 µg/m³
- NO2Nitrogen dioxide18.9 µg/m³
- SO2Sulphur dioxide15.6 µg/m³
- COCarbon monoxide232.3 µg/m³
Weather in Tehran
See the temperature, rain and wind forecast for Tehran.
Tehran 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 |
|---|---|---|---|---|---|---|
| 30.9 | 99.3 | 97.5 | 15.4 | 14.3 | 209.3 | |
| 31.7 | 97.6 | 100.5 | 15.6 | 14.3 | 205.6 | |
| 31.2 | 90.7 | 96.1 | 18.6 | 15.0 | 213.3 | |
| 30.5 | 86.1 | 93.3 | 19.8 | 15.4 | 218.5 | |
| 29.8 | 82.9 | 88.8 | 20.4 | 14.1 | 221.1 | |
| 31.2 | 85.9 | 77.8 | 27.3 | 14.7 | 252.3 | |
| 31.6 | 82.7 | 61.8 | 38.8 | 16.1 | 300.7 | |
| 34.7 | 76.2 | 28.6 | 65.3 | 19.5 | 425.9 | |
| 37.8 | 77.3 | 16.1 | 76.8 | 23.6 | 497.9 | |
| 37.7 | 80.4 | 21.5 | 67.4 | 23.3 | 466.8 | |
| 41.6 | 77.9 | 8.0 | 76.6 | 24.8 | 559.0 | |
| 45.6 | 77.0 | 6.5 | 75.6 | 25.5 | 688.4 | |
| 48.2 | 82.9 | 5.7 | 75.5 | 25.5 | 770.5 | |
| 48.8 | 84.9 | 4.5 | 75.0 | 24.3 | 781.1 | |
| 48.1 | 81.5 | 2.8 | 73.3 | 22.6 | 750.2 | |
| 45.7 | 76.3 | 1.7 | 71.3 | 21.3 | 695.3 | |
| 42.6 | 73.5 | 1.6 | 69.4 | 20.4 | 620.6 | |
| 40.2 | 72.1 | 2.4 | 67.2 | 19.3 | 550.2 | |
| 39.9 | 72.2 | 2.4 | 65.7 | 18.4 | 538.8 | |
| 47.5 | 79.5 | 3.9 | 63.1 | 19.2 | 748.7 | |
| 63.8 | 98.0 | 4.1 | 64.9 | 22.7 | 1256.0 | |
| 48.2 | 137.6 | 41.0 | 52.7 | 24.5 | 574.9 | |
| 41.5 | 148.5 | 77.9 | 28.3 | 19.4 | 289.0 | |
| 40.7 | 144.0 | 92.9 | 21.9 | 17.2 | 247.2 |
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 10:30 +0330. Retrieved: 2026-10-02T04:55:37.138824+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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