Air Quality in Guyancourt, France

Cloudy
11.2°C · 89.5% humidity
11.2°
Feels 11.2°
48
Good
Air quality is satisfactory. Enjoy outdoor activities.
10 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
55 11pm
55
55
48 2am
50
51
52 5am
53
54
54 8am
54
55
62 11am
82
82
82 2pm
62
62
62 5pm
62
62
62 8pm
55
55
Station readings
57
59
54
59
CAMS model adj +28
27
27
27
27
27
27
27
27
27
27
27
27
34
54
54
54
34
34
34
34
34
34
27
27
AD 728×90

Air Quality Index Trend

48h · 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.

89.5%
Humidity
10.5 km/h
Wind SW
1010.2 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
48
11.63 µg/m³
PM10
25
27.45 µg/m³
050100150200300500

What is the weather forecast for Guyancourt?

Temperature & Precipitation

PM2.5 Trend

48h · 1 station
PM2.511.63 µg/m³ ✓ WHO
Good
PM1027.45 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (10 stations within 25 km)
11.63
Median
11.93
Average
2.2
Low
19.2
High
PM2.5 µg/m³ · Model: 10.0 · Bias: -1.6

What is the 7-day forecast for Guyancourt?

05-30
18.2° 11.2°
2.19 mm
05-31
25.1° 13.4°
06-01
26.2° 11.5°
0.06 mm
06-02
17.5° 11.8°
7.56 mm
06-03
18.9° 11.3°
06-04
21.3° 17.6°
18.25 mm
06-05
18.4° 10.4°
0.75 mm
Both models agree Avg diff: 3.3°C

Where are air quality stations near Guyancourt?

59
rue de Gometz
11.0 km PM2.5: 16.0 µg/m³ PM10: 16.4 µg/m³
7
Paris Stade Lenglen, Paris
15.7 km PM2.5: 1.7 µg/m³
53
Paris Stade Lenglen, Paris
15.7 km PM2.5: 13.1 µg/m³
2
Paris Stade Lenglen, Paris
15.7 km PM2.5: 0.5 µg/m³
51
La Defense, Paris
17.9 km PM2.5: 12.1 µg/m³
55
La Defense, Paris
17.9 km PM2.5: 14.0 µg/m³
44
Place Victor Basch, Paris
19.5 km PM2.5: 10.6 µg/m³
5
Arcueil
19.5 km PM2.5: 1.2 µg/m³ PM10: 1.2 µg/m³
31
Avenue Des Champs Elysees, Paris
20.4 km PM2.5: 7.4 µg/m³
26
Avenue Des Champs Elysees, Paris
20.4 km PM2.5: 6.2 µg/m³

What cities are near Guyancourt?

46 Saint-Cyr-l'École 44 Montigny-le-Bretonneux 44 Saint-Quentin-en-Yvelines 43 Trappes 45 Versailles 44 Le Chesnay 44 Viroflay 40 Les Clayes-sous-Bois 47 Élancourt 44 Vélizy-Villacoublay
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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 2026-05-30T00:55 UTC.