Air Quality in Guyancourt, France

Cloudy
9.4°C · 76.7% humidity
9.4°
Feels 5.9°
12
Good
Air quality is satisfactory. Enjoy outdoor activities.
5 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
4 10pm
4
4
12 1am
9
9
7 4am
6
6
5 7am
5
5
4 10am
4
4
4 1pm
4
4
4 4pm
6
4
4 7pm
4
4
Station readings
4
4
6
CAMS model adj -21
25
25
25
24
24
25
25
25
25
25
25
25
25
25
25
25
25
25
25
27
25
25
25
25
AD 728×90

Air Quality Index Trend

47h · 1 stn

Guyancourt'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.

76.7%
Humidity
28.1 km/h
Wind NW
1022.5 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
PM2.5
12
3.02 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

Temperature & Precipitation

PM2.5 Trend

47h · 1 station
PM2.53.02 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
3.02
Median
3.97
Average
0.2
Low
7.7
High
PM2.5 µg/m³ · Model: 5.8 · Bias: +2.8
06-08
23.3° 13.0°
0.5 mm
06-09
24.0° 9.4°
0.62 mm
06-10
24.0° 13.0°
4.69 mm
06-11
27.9° 17.0°
0.38 mm
06-12
23.7° 10.2°
06-13
27.4° 9.6°
0.88 mm
06-14
24.7° 11.5°
2.75 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 2026-06-08T23:11 UTC.