Guinea-Bissau · Africa/Bissau
Bissau air quality
59
Moderate
CAMS model-based US AQI estimate
Highest pollutant sub-index: PM2.5
Model values for Oct 02 07:00 GMT · 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 particles17.0 µg/m³
- PM10Coarse particles35.7 µg/m³
- O3Ozone24.8 µg/m³
- NO2Nitrogen dioxide2.8 µg/m³
- SO2Sulphur dioxide0.5 µg/m³
- COCarbon monoxide141.5 µg/m³
Weather in Bissau
See the temperature, rain and wind forecast for Bissau.
Bissau 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 |
|---|---|---|---|---|---|---|
| 16.8 | 34.8 | 26.8 | 1.7 | 0.5 | 144.3 | |
| 16.4 | 40.9 | 39.8 | 0.8 | 0.5 | 114.4 | |
| 16.1 | 43.5 | 44.6 | 0.5 | 0.5 | 106.7 | |
| 15.4 | 42.3 | 47.1 | 0.3 | 0.5 | 105.4 | |
| 15.5 | 42.0 | 48.1 | 0.3 | 0.5 | 106.9 | |
| 14.9 | 40.0 | 48.8 | 0.3 | 0.5 | 108.5 | |
| 14.6 | 39.0 | 49.3 | 0.2 | 0.5 | 110.0 | |
| 14.4 | 38.3 | 49.7 | 0.2 | 0.5 | 111.5 | |
| 13.9 | 36.9 | 49.7 | 0.3 | 0.4 | 112.4 | |
| 13.9 | 36.3 | 47.7 | 0.4 | 0.4 | 113.5 | |
| 12.3 | 30.6 | 43.9 | 0.6 | 0.3 | 112.1 | |
| 11.4 | 26.8 | 39.4 | 1.0 | 0.4 | 114.8 | |
| 12.5 | 28.0 | 35.8 | 1.6 | 0.4 | 128.0 | |
| 13.5 | 27.8 | 31.3 | 2.1 | 0.5 | 143.9 | |
| 13.1 | 25.4 | 29.5 | 2.3 | 0.5 | 155.5 | |
| 12.4 | 22.8 | 27.7 | 2.4 | 0.5 | 161.0 | |
| 9.8 | 19.8 | 32.0 | 1.7 | 0.4 | 137.0 | |
| 7.6 | 15.5 | 33.4 | 1.5 | 0.4 | 131.7 | |
| 6.4 | 12.7 | 32.6 | 1.5 | 0.3 | 130.7 | |
| 5.3 | 10.4 | 31.7 | 1.6 | 0.3 | 129.9 | |
| 4.8 | 9.8 | 31.7 | 1.6 | 0.3 | 128.5 | |
| 4.2 | 9.2 | 34.8 | 1.4 | 0.3 | 123.9 | |
| 4.2 | 8.6 | 31.5 | 1.6 | 0.3 | 125.5 | |
| 4.3 | 8.2 | 30.3 | 1.8 | 0.3 | 131.1 |
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 07:00 GMT. Retrieved: 2026-10-02T04:30:09.374600+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 15 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.