What is the air quality in Aarau today?

The current Air Quality Index (AQI) in Aarau is 9 (Good). PM2.5 concentration is 2.16 µg/m³.

What is the temperature in Aarau right now?

The current temperature in Aarau is 11.6°C (feels like 11.6°C). Humidity is 68.4% and wind speed is 20.6 km/h.

Is it safe to go outside in Aarau?

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

Air Quality in Aarau, Switzerland

Partly Cloudy

11.6°C · 68.4% humidity

11.6°

Feels 11.6°

Good

Air quality is satisfactory. Enjoy outdoor activities.

3 stations

Nearby Monitoring Stations

AQI Forecast

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Station readings

Air Quality Index Trend

41h · 1 stn

View full history →

Aarau'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.

68.4%

Humidity

20.6 km/h

Wind E

1022.3 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5

2.16 µg/m³

PM10▲

13.7 µg/m³

050100150200300500

What is the weather forecast for Aarau?

Temperature & Precipitation

PM2.5 Trend

41h · 1 station

PM2.52.16 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.0

Low

Station readings (3 stations within 25 km)

2.16

Median

4.6

Average

2.0

Low

7.7

High

PM2.5 µg/m³ · Model: 5.8 · Bias: +3.6

What is the 7-day forecast for Aarau?

10-21

12.4° -1.0°

10-22

18.9° 5.0°

1.81 mm

10-23

9.2° 4.1°

3.69 mm

10-24

7.2° 2.8°

10-25

16.8° 2.1°

10-26

8.0° 4.3°

0.44 mm

10-27

14.4° 3.2°

0.25 mm

Both models agree Avg diff: 4.0°C

Where are air quality stations near Aarau?

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Kilbig

2.8 km PM2.5: 0.0 µg/m³ PM10: 0.0 µg/m³

Harkingen A1, Switzerland

19.1 km PM2.5: 3.4 µg/m³

Harkingen A1, Switzerland

19.1 km PM2.5: 4.1 µg/m³

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Hauptstraße Schwörstadt

25.6 km 13.0°C 66.0% RH PM2.5: 0.0 µg/m³ PM10: 0.0 µg/m³

What cities are near Aarau?

21 Olten 28 Bad Säckingen 8 Baden 7 Wettingen 7 Dietikon 37 Rheinfelden 25 Waldshut-Tiengen 6 Zürich (Kreis 9) 6 Zürich (Kreis 9) / Altstetten 38 Schopfheim

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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 2026-10-21T10:49 UTC.