Air Quality in Aarau, Switzerland
Drizzle
22.3°C · 64.4% humidity
22.3°
Feels 22.3°
20
Good
Air quality is satisfactory. Enjoy outdoor activities.
2 stations
Nearby Monitoring Stations
Aarau's air quality — share it
AQI Forecast
Calibrated
3
11am
3
3
20
2pm
15
12
9
5pm
7
6
5
8pm
5
4
4
11pm
6
12
12
2am
5
12
12
5am
12
12
32
8am
32
32
Station readings
13h ago
AQI 6
PM2.5 1.4 µg/m³ · 13h ago
CAMS model
adj -22
25
25
25
25
25
25
25
25
25
25
25
25
25
27
34
34
27
34
34
34
34
54
54
54
Air Quality Index Trend
20h · 1 stnAarau'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.
64.4%
Humidity
35.1 km/h
Wind WNW
1020.1 hPa
Pressure
5.9
UV High
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
4.7 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for Aarau?
Temperature & Precipitation
PM2.5 Trend
20h · 1 stationPM2.54.7 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX5.9
High
Station readings (2 stations within 25 km)
4.7
Median
4.7
Average
1.7
Low
7.7
High
PM2.5 µg/m³ · Model: 6.0 · Bias: +1.3
What is the 7-day forecast for Aarau?
09-05
22.3° 9.8°
0.81 mm
09-06
17.5° 12.3°
10.44 mm
09-07
23.7° 9.4°
0.81 mm
09-08
21.6° 10.4°
09-09
21.8° 10.5°
0.06 mm
09-10
28.0° 10.7°
0.31 mm
09-11
21.0° 7.0°
Both models agree
Avg diff: 4.9°C
Where are air quality stations near Aarau?
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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 2026-09-05T12:46 UTC.