Air Quality in Aarau, Switzerland
Heavy Rain
10.4°C · 99.4% humidity
10.4°
Feels 10.4°
7
Good
Air quality is satisfactory. Enjoy outdoor activities.
2 stations
Nearby Monitoring Stations
Aarau's air quality — share it
AQI Forecast
Calibrated
16
1am
2
10
7
4am
7
7
7
7am
7
7
7
10am
6
6
6
1pm
6
6
6
4pm
6
6
6
7pm
7
7
9
10pm
9
16
Station readings
25
2
10
CAMS model
adj -18
34
34
24
25
25
25
25
25
25
25
24
24
24
24
24
24
24
24
24
25
25
27
27
34
Air Quality Index Trend
35h · 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.
99.4%
Humidity
23.7 km/h
Wind WNW
1020.5 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5
1.62 µg/m³
PM10▲
13.7 µg/m³
050100150200300500
What is the weather forecast for Aarau?
Temperature & Precipitation
PM2.5 Trend
35h · 2 stationsPM2.51.62 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
Station readings (2 stations within 25 km)
1.62
Median
3.86
Average
1.52
Low
6.2
High
PM2.5 µg/m³ · Model: 6.0 · Bias: +4.4
What is the 7-day forecast for Aarau?
06-09
24.4° 10.0°
22.19 mm
06-10
23.7° 11.8°
2.63 mm
06-11
24.8° 11.7°
6.13 mm
06-12
24.4° 9.8°
6.13 mm
06-13
27.1° 9.8°
2.69 mm
06-14
28.1° 10.4°
0.06 mm
06-15
28.8° 13.9°
Both models agree
Avg diff: 3.5°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 2026-06-09T02:10 UTC.