What is the air quality in Grenchen today?

The current Air Quality Index (AQI) in Grenchen is 21 (Good). PM2.5 concentration is 4.95 µg/m³.

What is the temperature in Grenchen right now?

The current temperature in Grenchen is 9.9°C (feels like 7.1°C). Humidity is 98.9% and wind speed is 22.1 km/h.

Is it safe to go outside in Grenchen?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.7 (Low).

Air Quality in Grenchen, Switzerland

Heavy Rain

9.9°C · 98.9% humidity

9.9°

Feels 7.1°

Good

Air quality is satisfactory. Enjoy outdoor activities.

Calibrated model

Nearby Monitoring Stations

AQI Forecast

25 10pm

21 1am

23 4am

24 7am

24 10am

24 1pm

24 4pm

25 7pm

Air Quality Index Trend

48h · 4 stn

View full history →

Grenchen'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.

98.9%

Humidity

22.1 km/h

Wind NNW

1020.3 hPa

Pressure

0.7

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

4.95 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Grenchen?

Temperature & Precipitation

PM2.5 Trend

48h · 4 stations

PM2.54.95 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.7

Low

Both models agree Avg diff: 3.2°C

What cities are near Grenchen?

19 Solothurn 21 Biel/Bienne 17 Burgdorf 33 Bern 33 Köniz 15 Reinach 19 Allschwil 18 Muttenz 13 Neuchâtel 20 Olten

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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 2026-06-08T23:09 UTC.