Air Quality in Les Ulis, France
Partly Cloudy
11.8°C · 69.8% humidity
11.8°
Feels 11.8°
5
Good
Air quality is satisfactory. Enjoy outdoor activities.
4 stations
Nearby Monitoring Stations
Les Ulis's air quality — share it
AQI Forecast
Calibrated
4
10pm
4
4
5
1am
3
4
4
4am
4
4
4
7am
4
4
4
10am
4
4
4
1pm
4
4
4
4pm
6
4
4
7pm
4
4
Station readings
4
4
6
4
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
Air Quality Index Trend
48h · 1 stnLes Ulis'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.
69.8%
Humidity
25.4 km/h
Wind NW
1022.2 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5
1.21 µg/m³
PM10▲
13.7 µg/m³
050100150200300500
What is the weather forecast for Les Ulis?
Temperature & Precipitation
PM2.5 Trend
48h · 1 stationPM2.51.21 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
Station readings (4 stations within 25 km)
1.21
Median
3.88
Average
0.2
Low
7.7
High
PM2.5 µg/m³ · Model: 5.8 · Bias: +4.6
What is the 7-day forecast for Les Ulis?
06-08
24.3° 14.3°
0.19 mm
06-09
24.4° 11.8°
0.81 mm
06-10
24.9° 14.2°
3.62 mm
06-11
28.4° 18.7°
0.25 mm
06-12
24.8° 11.5°
06-13
27.9° 11.3°
0.88 mm
06-14
25.8° 14.0°
1.25 mm
Both models agree
Avg diff: 3.9°C
Where are air quality stations near Les Ulis?
4
rue de Gometz
38
Rn20 Montlhery, Paris
21
Paris Stade Lenglen, Paris
33
Paris Stade Lenglen, Paris
47
Paris Stade Lenglen, Paris
44
Vitry-sur-seine, Paris
41
Vitry-sur-seine, Paris
5
Arcueil
25
Place Victor Basch, Paris
30
Avenue Des Champs Elysees, Paris
What cities are near Les Ulis?
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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 2026-06-08T23:21 UTC.