Nepal · Asia/Kathmandu
Kathmandu air quality
89
Moderate
CAMS model-based US AQI estimate
Highest pollutant sub-index: PM2.5
Model values for Oct 02 12:45 +0545 · 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 particles31.4 µg/m³
- PM10Coarse particles39.6 µg/m³
- O3Ozone115.0 µg/m³
- NO2Nitrogen dioxide1.5 µg/m³
- SO2Sulphur dioxide4.7 µg/m³
- COCarbon monoxide259.0 µg/m³
Weather in Kathmandu
See the temperature, rain and wind forecast for Kathmandu.
Kathmandu 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 |
|---|---|---|---|---|---|---|
| 33.6 | 42.2 | 115.2 | 1.6 | 4.9 | 268.3 | |
| 33.1 | 41.1 | 112.3 | 2.0 | 4.8 | 278.4 | |
| 34.3 | 42.4 | 111.1 | 2.9 | 5.0 | 297.2 | |
| 36.6 | 45.3 | 110.4 | 4.3 | 5.5 | 325.4 | |
| 44.1 | 52.5 | 94.4 | 11.2 | 6.0 | 438.1 | |
| 52.3 | 61.0 | 79.7 | 20.6 | 7.1 | 599.8 | |
| 59.9 | 68.5 | 69.9 | 25.2 | 7.8 | 712.4 | |
| 62.1 | 69.6 | 57.2 | 26.8 | 7.8 | 799.5 | |
| 69.9 | 77.0 | 43.9 | 29.1 | 7.8 | 907.1 | |
| 73.7 | 80.6 | 38.4 | 28.9 | 7.5 | 944.7 | |
| 70.9 | 77.2 | 38.5 | 25.7 | 6.8 | 896.2 | |
| 66.1 | 71.8 | 40.3 | 21.1 | 6.3 | 809.6 | |
| 57.8 | 63.0 | 49.1 | 14.9 | 6.4 | 659.0 | |
| 50.8 | 55.5 | 54.1 | 10.8 | 6.5 | 548.3 | |
| 44.7 | 48.8 | 54.1 | 9.3 | 6.5 | 490.3 | |
| 41.2 | 44.7 | 48.8 | 9.4 | 6.1 | 465.5 | |
| 38.8 | 42.0 | 45.0 | 10.2 | 6.0 | 456.3 | |
| 38.0 | 41.2 | 46.7 | 11.2 | 6.3 | 474.5 | |
| 30.4 | 34.7 | 86.4 | 6.8 | 7.3 | 368.1 | |
| 22.1 | 25.8 | 105.9 | 4.3 | 5.4 | 316.4 | |
| 18.7 | 21.8 | 112.6 | 2.9 | 4.7 | 304.8 | |
| 13.9 | 16.4 | 111.7 | 1.8 | 3.3 | 278.3 | |
| 13.8 | 16.3 | 110.2 | 1.9 | 3.1 | 283.9 | |
| 14.5 | 17.1 | 111.0 | 2.0 | 3.2 | 295.3 |
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 12:45 +0545. Retrieved: 2026-10-02T04:49:40.771138+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 16 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
Static snapshot is available without JavaScript.