Air Quality in Guyancourt, France

Windy
26.8°C · 28.8% humidity
26.8°
Feels 26.8°
23
Good
Air quality is satisfactory. Enjoy outdoor activities.
3 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
24 5am
22
23
23 8am
14
14
14 11am
14
14
14 2pm
14
14
14 5pm
14
14
14 8pm
21
41
41 11pm
41
41
41 2am
41
41
Station readings
24
22
23
CAMS model adj -13
34
34
34
34
27
27
27
27
27
27
27
27
27
27
27
27
34
54
54
54
54
54
54
54
AD 728×90

Air Quality Index Trend

47h · 3 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.

28.8%
Humidity
57.3 km/h
Wind W
1013.6 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
23
5.58 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Guyancourt?

Temperature & Precipitation

PM2.5 Trend

47h · 3 stations
PM2.55.58 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (3 stations within 25 km)
5.58
Median
9.38
Average
2.42
Low
22.84
High
PM2.5 µg/m³ · Model: 7.0 · Bias: +1.4

What is the 7-day forecast for Guyancourt?

08-03
37.4° 17.6°
1.44 mm
08-04
26.6° 18.6°
0.25 mm
08-05
32.6° 20.6°
08-06
32.3° 16.4°
0.13 mm
08-07
32.6° 14.2°
1.13 mm
08-08
26.2° 16.7°
08-09
23.4° 14.6°
Both models agree Avg diff: 4.2°C

Where are air quality stations near Guyancourt?

23
rue de Gometz
11.0 km PM2.5: 5.6 µg/m³ PM10: 5.7 µg/m³
57
Paris Stade Lenglen, Paris
15.7 km PM2.5: 15.0 µg/m³
56
Paris Stade Lenglen, Paris
15.7 km PM2.5: 14.5 µg/m³
12
Paris Stade Lenglen, Paris
15.7 km PM2.5: 2.9 µg/m³
13
Paris Stade Lenglen, Paris
15.7 km PM2.5: 3.1 µg/m³
152
La Defense, Paris
17.9 km PM2.5: 57.4 µg/m³
27
La Defense, Paris
17.9 km PM2.5: 6.5 µg/m³
18
Place Victor Basch, Paris
19.5 km PM2.5: 4.3 µg/m³
40
Place Victor Basch, Paris
19.5 km PM2.5: 9.6 µg/m³
19
Arcueil
19.5 km PM2.5: 4.5 µg/m³ PM10: 4.7 µg/m³

What cities are near Guyancourt?

28 Saint-Cyr-l'École 12 Montigny-le-Bretonneux 12 Saint-Quentin-en-Yvelines 12 Trappes 27 Versailles 29 Le Chesnay 27 Viroflay 12 Les Clayes-sous-Bois 12 Élancourt 24 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 2026-08-08T06:30 UTC.