Air Quality in Aarau, Switzerland
Clear
26.3°C · 49.5% humidity
26.3°
Feels 26.3°
3
Good
Air quality is satisfactory. Enjoy outdoor activities.
1 station
Nearby Monitoring Stations
Aarau's air quality — share it
AQI Forecast
Calibrated
14
8am
14
13
3
11am
6
5
3
2pm
2
2
1
5pm
1
1
0
8pm
0
0
0
11pm
0
14
14
2am
14
14
14
5am
26
26
Station readings
10
8
13
CAMS model
adj -40
54
54
34
34
34
27
27
27
25
25
25
25
25
27
27
34
34
54
54
54
54
54
66
66
Air Quality Index Trend
32h · 2 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.
49.5%
Humidity
19.4 km/h
Wind NNW
1013.7 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5
0.75 µg/m³
PM10▲
20.55 µg/m³
050100150200300500
What is the weather forecast for Aarau?
Temperature & Precipitation
PM2.5 Trend
32h · 2 stationsPM2.50.75 µg/m³
✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX0.7
Low
Station readings (1 station within 25 km)
0.75
Median
0.75
Average
0.75
Low
0.75
High
PM2.5 µg/m³ · Model: 10.85 · Bias: +10.1
What is the 7-day forecast for Aarau?
08-03
34.6° 17.4°
0.06 mm
08-04
29.4° 14.7°
1.94 mm
08-05
30.0° 17.2°
2.06 mm
08-06
25.0° 17.8°
2.63 mm
08-07
35.7° 15.6°
4.5 mm
08-08
23.9° 12.4°
1.69 mm
08-09
24.7° 12.8°
4.56 mm
Both models agree
Avg diff: 4.6°C
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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 2026-08-08T09:10 UTC.