What is the air quality in Herisau today?

The current Air Quality Index (AQI) in Herisau is 32 (Good). PM2.5 concentration is 7.78 µg/m³.

What is the temperature in Herisau right now?

The current temperature in Herisau is 12.4°C (feels like 12.4°C). Humidity is 65.2% and wind speed is 19.6 km/h.

Is it safe to go outside in Herisau?

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

Air Quality in Herisau, Switzerland

Partly Cloudy

12.4°C · 65.2% humidity

12.4°

Feels 12.4°

Good

Air quality is satisfactory. Enjoy outdoor activities.

Calibrated model

Nearby Monitoring Stations

AQI Forecast

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Air Quality Index Trend

46h · 5 stn

View full history →

Herisau'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.

65.2%

Humidity

19.6 km/h

Wind N

1021.7 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

7.78 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Herisau?

Temperature & Precipitation

PM2.5 Trend

46h · 5 stations

PM2.57.78 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.0

Low

What is the 7-day forecast for Herisau?

10-21

12.7° -3.1°

10-22

16.3° 5.7°

6.56 mm

10-23

7.2° 5.5°

2.38 mm

10-24

6.7° 3.0°

0.06 mm

10-25

17.0° 1.2°

10-26

7.6° 4.9°

1.5 mm

10-27

12.3° 2.3°

0.06 mm

Both models agree Avg diff: 3.0°C

Where are air quality stations near Herisau?

–

Oberriet, Adlerstrasse

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

What cities are near Herisau?

32 Gossau 27 Sankt Gallen 23 Wil 28 Lustenau 30 Feldkirch 61 Kreuzlingen 31 Hohenems 61 Konstanz 32 Vaduz 61 Petershausen-West

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ModerateAQI > 50 Unhealthy for Sensitive GroupsAQI > 100 UnhealthyAQI > 150 Very UnhealthyAQI > 200

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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 2026-10-21T10:52 UTC.