What is the air quality in Siegen today?

The current Air Quality Index (AQI) in Siegen is 29 (Good). PM2.5 concentration is 6.97 µg/m³.

What is the temperature in Siegen right now?

The current temperature in Siegen is 1.3°C (feels like -4.0°C). Humidity is 96.1% and wind speed is 23.3 km/h.

Is it safe to go outside in Siegen?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.0 (Low).

Air Quality in Siegen, Germany

Overcast

1.3°C · 96.1% humidity

1.3°

Feels -4.0°

Good

Air quality is satisfactory. Enjoy outdoor activities.

2 stations

Nearby Monitoring Stations

AQI Forecast

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Station readings

Air Quality Index Trend

43h · 1 stn

View full history →

Siegen's air quality is shaped by traffic emissions and residential heating. Pollution levels tend to peak during winter months when cold air traps emissions close to ground level.

96.1%

Humidity

23.3 km/h

Wind ESE

1019.2 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

6.97 µg/m³

PM10

27.4 µg/m³

050100150200300500

What is the weather forecast for Siegen?

Temperature & Precipitation

PM2.5 Trend

43h · 1 station

PM2.56.97 µg/m³ ✓ WHO

Good

PM1027.4 µg/m³

Good

UV INDEX0.0

Low

Station readings (2 stations within 25 km)

6.97

Median

6.85

Average

5.8

Low

7.9

High

PM2.5 µg/m³ · Model: 13.5 · Bias: +6.5

What is the 7-day forecast for Siegen?

10-21

13.8° 1.3°

0.13 mm

10-22

18.2° 2.9°

0.13 mm

10-23

8.3° 3.2°

0.81 mm

10-24

9.1° 3.6°

0.81 mm

10-25

12.8° 2.3°

10-26

7.6° 2.0°

7.37 mm

10-27

16.5° 1.4°

0.56 mm

Both models agree Avg diff: 3.9°C

Where are air quality stations near Siegen?

Westerwald-Herdorf, Germany

11.9 km PM2.5: 3.8 µg/m³

Netphen Rothaargebirge, Germany

13.3 km PM2.5: 1.9 µg/m³

What cities are near Siegen?

25 Netphen 30 Wilnsdorf 27 Kreuztal 30 Freudenberg 24 Hilchenbach 29 Wenden 29 Haiger 40 Olpe 28 Dillenburg 24 Lennestadt

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Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-10-21T07:40 UTC.