Air Quality in Les Ulis, France

Clear
16.4°C · 34.1% humidity
16.4°
Feels 16.4°
12
Good
Air quality is satisfactory. Enjoy outdoor activities.
13 stations

Nearby Monitoring Stations

AQI Forecast
19 9am
12
7
12 12pm
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Station readings
19
12
7
4

Air Quality Index Trend

48h · 4 stn

Les 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.

34.1%
Humidity
25.7 km/h
Wind SW
1022.4 hPa
Pressure
0.0
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5
12
2.87 µg/m³
PM10▲
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Les Ulis?

Temperature & Precipitation

PM2.5 Trend

48h · 4 stations
PM2.52.87 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.0
Low
Station readings (13 stations within 25 km)
2.87
Median
9.54
Average
0.6
Low
37.5
High
PM2.5 µg/m³ · Model: 6.5 · Bias: +3.6

What is the 7-day forecast for Les Ulis?

10-21
16.4° 9.8°
0.56 mm
10-22
20.1° 11.0°
0.56 mm
10-23
16.6° 10.4°
9.38 mm
10-24
14.4° 10.7°
0.38 mm
10-25
17.6° 10.1°
0.38 mm
10-26
14.9° 10.6°
0.19 mm
10-27
17.0° 7.7°
0.13 mm
Both models agree Avg diff: 3.2°C

Where are air quality stations near Les Ulis?

4
rue de Gometz
1.9 km PM2.5: 1.0 µg/m³ PM10: 2.0 µg/m³
53
Rn20 Montlhery, Paris
8.6 km PM2.5: 13.1 µg/m³
45
Rn20 Montlhery, Paris
8.6 km PM2.5: 10.8 µg/m³
69
Rn20 Montlhery, Paris
8.6 km PM2.5: 20.7 µg/m³
106
Paris Stade Lenglen, Paris
18.1 km PM2.5: 37.5 µg/m³
6
Paris Stade Lenglen, Paris
18.1 km PM2.5: 1.4 µg/m³
6
Paris Stade Lenglen, Paris
18.1 km PM2.5: 1.4 µg/m³
5
Arcueil
18.7 km PM2.5: 1.2 µg/m³ PM10: 1.6 µg/m³
53
Place Victor Basch, Paris
19.9 km PM2.5: 13.1 µg/m³
59
Avenue Des Champs Elysees, Paris
23.3 km PM2.5: 15.9 µg/m³

What cities are near Les Ulis?

20 Orsay 8 Gif-sur-Yvette 39 Palaiseau 39 Longjumeau 40 Massy 43 Verrières-le-Buisson 52 Vélizy-Villacoublay 39 Chilly-Mazarin 44 Saint-Michel-sur-Orge 42 Sainte-Geneviève-des-Bois
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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 2026-10-21T10:50 UTC.