Worst air pollution Geilo, today and tomorrow

On 9 August 2026, overall air quality in Geilo is fair. AQI is the main air quality indicator at 29.3/100. Pollution peaks around 10:00 AM (O3: 29.3/100).

On 10 August 2026, air quality conditions in Geilo will be better than today, with AQI forecast at good at 16.8/100. Pollution peaks around 9:00 AM (O3: 16.8/100).

Geilo typically sees the sharpest drop in air quality when heavy commuter traffic coincides with calm winter weather, when still conditions let emissions from nearby roads settle over the district. Oslofjord-influenced airflow generally restores good conditions within a day or so. The remainder of the year, Geilo's air quality is typically unremarkable in a good way.

It is forecasts derived by downscaling forecasts provided by EU’s Copernicus Atmosphere Monitoring Service (CAMS) by taking into account local conditions such as traffic patterns. CAMS bases its forecast on satellite measurements of particles and chemical compounds in the atmosphere. Airmine’s services were developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team.

Airmine’s forecast uses CAMS (Copernicus Atmosphere Monitoring Service) as its background atmospheric model. While CAMS includes wildfire emissions, these are derived from satellite observations and are not available in real time. During rapidly evolving wildfire events, there may therefore be a delay before increased emissions are incorporated into the model. As a result, the forecast may temporarily underestimate PM₂.₅ and other pollutants associated with wildfire smoke.

During rapidly evolving wildfire events, CAMS may lag by approximately 1–2 days before increased wildfire emissions are fully represented, which can lead to temporary underestimation of PM₂.₅ concentrations in Airmine’s forecast.