Air Quality in Sankt Gallen, Switzerland

Cloudy
14.4°C · 77.0% humidity
14.4°
Feels 14.4°
17
Good
Air quality is satisfactory. Enjoy outdoor activities.
1 station

Nearby Monitoring Stations

AQI Forecast Calibrated
27 4pm
27
27
17 7pm
20
22
23 10pm
26
27
28 1am
28
26
29 4am
36
36
56 7am
56
36
36 10am
27
27
27 1pm
26
26
Station readings
34
30
25
CAMS model adj +2
25
25
25
25
25
25
25
27
27
27
27
25
27
34
34
54
54
34
34
25
25
25
24
24
AD 728×90

Air Quality Index Trend

33h · 1 stn

Sankt Gallen'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.

77.0%
Humidity
39.5 km/h
Wind NE
1024.7 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
PM2.5
17
4.0 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

Temperature & Precipitation

PM2.5 Trend

33h · 1 station
PM2.54.0 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
4.0
Median
4.0
Average
4.0
Low
4.0
High
PM2.5 µg/m³ · Model: 6.25 · Bias: +2.2
09-05
19.1° 9.5°
1.31 mm
09-06
14.8° 12.1°
6.13 mm
09-07
22.3° 10.8°
3.69 mm
09-08
18.7° 12.2°
0.25 mm
09-09
20.4° 12.1°
0.88 mm
09-10
25.5° 10.8°
0.75 mm
09-11
19.7° 4.9°
0.13 mm
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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 2026-09-05T17:30 UTC.