Worst air pollution Warstein, today and tomorrow

Today (21 July): Air quality in Warstein is fair. AQI, NO2, and O3 are fair; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 5:00 PM (O3: 26.7/100).
Tomorrow (22 July 2026): Air quality in Warstein is fair. All pollutants stay as today. Pollution peaks around 4:00 AM (NO2: 28.3/100). Airmine updates local air quality forecasts four times daily.

For long term forecasts and maps, see the Airmine app

Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team

Use our Strava plugin to check your own exposure.

Warstein sits within the wooded Sauerland-Siegerland uplands, where local traffic and nearby regional through-roads and surrounding light manufacturing and forestry activity contribute the main local air quality sources. Ridge and valley terrain gives noticeably uneven dispersal conditions, while Atlantic westerlies and the region's forested terrain generally keep background pollution moderate throughout the year.

Today - 21 July | Pollution peaks at 17:00

AQI:

Fair

26.7/100

PM2.5 (fine particles):

Good

8.0/100

PM10 (coarse particles):

Good

3.0/100

NO2 (nitrogen dioxide):

Fair

26.6/100

O3 (ozone):

Fair

26.7/100

SO2 (sulfur dioxide):

Good

2.1/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

2.7/100

PM1 (ultrafine particles):

Good

6.1/100

Levels show the poorest local air quality during the day

Tomorrow - 22 July | Pollution peaks at 04:00

AQI:

Fair

28.3/100

PM2.5 (fine particles):

Good

8.7/100

PM10 (coarse particles):

Good

2.9/100

NO2 (nitrogen dioxide):

Fair

28.3/100

O3 (ozone):

Fair

22.6/100

SO2 (sulfur dioxide):

Good

3.4/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

2.5/100

PM1 (ultrafine particles):

Good

7.5/100

Pollen forecast in Warstein

View pollen forecast

Frequently Asked Questions

Is air quality bad in Warstein right now?

On 21 July 2026, overall air quality in Warstein is fair. AQI is the main air quality indicator at 26.7/100. Pollution peaks around 5:00 PM (O3: 26.7/100).

Will air quality be worse tomorrow in Warstein?

On 22 July 2026, air quality conditions in Warstein will be similar to today, with AQI forecast at fair at 28.3/100. Pollution peaks around 4:00 AM (NO2: 28.3/100).

When is air pollution at its worst in Warstein?

Reduced air quality in Warstein is most likely when hornbeam, beech, and spruce pollen peaks, or on warm, stagnant days when local emissions settle; local and through traffic is a modest source. Ragweed is generally a minor factor here compared with warmer parts of Germany. Wind and rain both help clear the air noticeably here.

Are air quality levels in Warstein based on measurements or forecasts?

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.

Why doesn’t the forecast always reflect wildfire impacts?

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.

Want to see air quality forecasts for other cities in Germany?

Check air quality in other popular cities:

Data provided by Airmine — Last update: 21 July 2026 at 05:44 CEST (Data is updated four times daily.)

This forecast is produced independently using Airmine's own atmospheric data and models.

Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.

For long term forecasts and maps, see the Airmine app