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Le Chesnay (Île-de-France) (FR)

Air Quality Trend (last 7 days)

Good (0-50)
Moderate (51-100)
Unhealthy for Sensitive Groups (101-150)
Unhealthy (151-200)
Very Unhealthy (201-300)
Hazardous (300+)

Weather - 48h MET Norway

Heavy rain
7°C
Heavy rain
Humidity
98.8%
Wind
2 m/s
Pressure
989.4 hPa
Direction
166°
Sunrise
05:00
Sunset
17:00
24h Forecast:
Temp.
2° / 9°
Precip.
7.9mm
Max wind
5.7 m/s

Hourly Forecast

03.02
Now
Weather
1.9
03.02
08:00
Weather
1.8
03.02
09:00
Weather
2.6
5
03.02
10:00
Weather
1
5
03.02
11:00
Weather
0.4
6
03.02
12:00
Weather
0.1
6
03.02
13:00
Weather
0.1
5
03.02
14:00
Weather
5
03.02
15:00
Weather
03.02
16:00
Weather
03.02
17:00
Weather
03.02
18:00
Weather
03.02
19:00
Weather
03.02
20:00
Weather
03.02
21:00
Weather
03.02
22:00
Weather
03.02
23:00
Weather
04.02
00:00
Weather
04.02
01:00
Weather
04.02
02:00
Weather
04.02
03:00
Weather
04.02
04:00
Weather
04.02
05:00
Weather
04.02
06:00
Weather

Temperature

9°C
2°C
07:00
7°C
08:00
7°C
09:00
8°C
10:00
8°C
11:00
8°C
12:00
8°C
13:00
9°C
14:00
9°C
15:00
9°C
16:00
9°C
17:00
8°C
18:00
8°C
19:00
7°C
20:00
7°C
21:00
6°C
22:00
6°C
23:00
5°C
00:00
5°C
01:00
4°C
02:00
4°C
03:00
3°C
04:00
3°C
05:00
3°C
06:00
2°C
07:00 18:00 06:00

Precipitation

2.6mm
0mm
07:00
1.9mm
08:00
1.8mm
09:00
2.6mm
10:00
1mm
11:00
0.4mm
12:00
0.1mm
13:00
0.1mm
07:00 18:00 06:00

Wind

5.7m/s
0m/s
07:00
2 m/s
08:00
3.5 m/s
09:00
5.2 m/s
10:00
5.3 m/s
11:00
5.6 m/s
12:00
5.7 m/s
13:00
5.4 m/s
14:00
5.1 m/s
15:00
4.7 m/s
16:00
4.5 m/s
17:00
3.8 m/s
18:00
3.7 m/s
19:00
4.1 m/s
20:00
3.9 m/s
21:00
4 m/s
22:00
3.7 m/s
23:00
3.5 m/s
00:00
3.2 m/s
01:00
3.2 m/s
02:00
3.2 m/s
03:00
2.8 m/s
04:00
2.7 m/s
05:00
3 m/s
06:00
3.5 m/s
07:00 18:00 06:00

Radiation

0.079 uSv
2.8 km
9.9%

Measurement time: 2026-02-03 06:00

source: remap_europe

We display the worst measurements from all stations in the area. This approach provides a more cautious assessment of air quality, accounting for local pollution sources.

AQI
27.9 km
4
1.3%

Measurement time: 2026-02-03 06:08

Calculated from PM2.5/PM10

O3
27.9 km
62.33 µg/m3
39%

Measurement time: 2026-02-03 06:08

source: OpenWeatherMap

PM2.5
27.9 km
1.01 µg/m3
1.2%

Measurement time: 2026-02-03 06:08

source: OpenWeatherMap

CO
27.9 km
0.14895 mg/m3
1.1%

Measurement time: 2026-02-03 06:08

source: OpenWeatherMap

PM10
27.9 km
1.24 µg/m3
0.9%

Measurement time: 2026-02-03 06:08

source: OpenWeatherMap

NO2
27.9 km
1.4 µg/m3
0.7%

Measurement time: 2026-02-03 06:08

source: OpenWeatherMap

SO2
27.9 km
0.1 µg/m3
0%

Measurement time: 2026-02-03 06:08

source: OpenWeatherMap

Info


Country: France
Latitude: 48.8222
Longitude: 2.12213

Cities in the area:

Versailles Vaucresson La Celle-Saint-Cloud Viroflay Louveciennes Bougival Saint-Cyr-l’École Garches Noisy-le-Roi Buc Ville-d’Avray Chaville Fontenay-le-Fleury Marly-le-Roi Croissy-sur-Seine Saint-Cloud Guyancourt Vélizy-Villacoublay Sèvres Bois-d’Arcy Rueil-Malmaison Jouy-en-Josas Le Vésinet Chatou Le Pecq Meudon Voisins-le-Bretonneux Montigny-le-Bretonneux Saint-Germain-en-Laye Villepreux Trappes Saint-Quentin-en-Yvelines Boulogne-Billancourt Suresnes Montesson Magny-les-Hameaux Les Clayes-sous-Bois Nanterre Carrières-sur-Seine Clamart Puteaux Chambourcy Issy-les-Moulineaux Igny Le Plessis-Robinson La Defense Plaisir Vanves Châtenay-Malabry Châtillon Neuilly-sur-Seine Courbevoie Fontenay-aux-Roses Élancourt La Garenne-Colombes Malakoff Sceaux Verrières-le-Buisson Bagneux Montrouge Levallois-Perret Le Mesnil-Saint-Denis La Verrière Bourg-la-Reine Antony Maurepas Arcueil Cachan L'Haÿ-les-Roses Gentilly Clichy Fresnes Jouars-Pontchartrain Paris Le Kremlin-Bicêtre Villejuif Chevilly-Larue Saint-Ouen Beynes Rungis Ivry-sur-Seine Vitry-sur-Seine Thiais Charenton-le-Pont Orly Saint-Mandé Le Pré-Saint-Gervais Alfortville Maule Bagnolet Saint-Maurice Pantin Villeneuve-le-Roi Choisy-le-Roi Les Lilas Maisons-Alfort Vincennes Romainville Montreuil Créteil Joinville-le-Pont Bobigny Noisy-le-Sec Nogent-sur-Marne Valenton Fontenay-sous-Bois Bonneuil-sur-Marne Champigny-sur-Marne Saint-Maur-des-Fossés Le Perreux-sur-Marne Limeil-Brévannes Rosny-sous-Bois Bondy Neuilly-Plaisance Villemomble Bry-sur-Marne Boissy-Saint-Léger Les Pavillons-sous-Bois Le Raincy Chennevières-sur-Marne Sucy-en-Brie Gagny Ormesson-sur-Marne Villiers-sur-Marne Neuilly-sur-Marne Noisy-le-Grand Clichy-sous-Bois Le Plessis-Trévise La Queue-en-Brie Gournay-sur-Marne Montfermeil Chelles Champs-sur-Marne Pontault-Combault Émerainville Noisiel Lésigny Lognes Vaires-sur-Marne Roissy-en-Brie Torcy Ozoir-la-Ferrière Saint-Thibault-des-Vignes Bussy-Saint-Georges Lagny-sur-Marne Thorigny-sur-Marne Gretz-Armainvilliers Tournan-en-Brie Esbly

Solar Energy

Low
114.7 W/m²
Solar Radiation
Solar Calculator
Calculate energy production for Le Chesnay

About Air Quality in Le Chesnay

Air quality in Le Chesnay is monitored in real-time by sensors and measurement stations. On this page you'll find current data on major air pollutants including particulate matter PM2.5 and PM10, nitrogen dioxide (NO2), ozone (O3), and radiation levels.

Common Pollutants in Le Chesnay

  • PM2.5 - fine particulate matter up to 2.5 micrometers, particularly harmful to health
  • PM10 - particulate matter up to 10 micrometers from traffic and industry
  • NO2 - nitrogen dioxide mainly emitted by vehicles
  • O3 - tropospheric ozone formed in photochemical reactions

When is Air Quality Best in Le Chesnay?

Generally, the best air quality occurs:

  • Early morning (5:00-7:00 AM) before rush hour traffic
  • After rainfall which cleanses the atmosphere
  • During strong winds that disperse pollutants
  • In summer months when heating systems are less used

Tips for Runners in Le Chesnay

If you're planning outdoor activities in Le Chesnay, always check the current AQI value. When AQI exceeds 100, consider moving your workout indoors or shortening the distance. People with respiratory issues, children, and seniors should be especially cautious during elevated pollution levels. Choose routes away from busy streets and industrial areas.