Air Quality in Marly-le-Roi, France

Windy
20.1°C · 37.7% humidity
20.1°
Feels 20.1°
28
Good
Air quality is satisfactory. Enjoy outdoor activities.
8 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
18 6pm
18
38
28 9pm
26
25
31 12am
31
30
30 3am
30
29
29 6am
22
22
22 9am
22
22
22 12pm
20
20
22 3pm
22
22
Station readings
18
18
38
CAMS model adj -5
24
24
25
27
27
27
34
34
34
34
34
34
34
27
27
27
27
27
27
25
25
27
27
27
AD 728×90

Air Quality Index Trend

47h · 3 stn

Marly-le-Roi'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.

37.7%
Humidity
58.1 km/h
Wind NE
1026.2 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
28
6.84 µg/m³
PM10
19
20.55 µg/m³
050100150200300500

What is the weather forecast for Marly-le-Roi?

Temperature & Precipitation

PM2.5 Trend

47h · 3 stations
PM2.56.84 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (8 stations within 25 km)
6.84
Median
6.6
Average
1.91
Low
11.13
High
PM2.5 µg/m³ · Model: 6.5 · Bias: -0.3

What is the 7-day forecast for Marly-le-Roi?

09-05
24.7° 12.7°
09-06
23.3° 16.3°
09-07
21.9° 14.1°
12.62 mm
09-08
24.2° 14.3°
2.44 mm
09-09
24.1° 12.9°
0.38 mm
09-10
24.0° 14.3°
09-11
21.2° 13.6°
0.5 mm
Both models agree Avg diff: 3.4°C

Where are air quality stations near Marly-le-Roi?

36
La Defense, Paris
11.8 km PM2.5: 8.6 µg/m³
13
Avenue Des Champs Elysees, Paris
16.7 km PM2.5: 3.1 µg/m³
42
Place Victor Basch, Paris
18.3 km PM2.5: 10.1 µg/m³
30
Place Victor Basch, Paris
18.3 km PM2.5: 7.2 µg/m³
11
Arcueil
19.4 km PM2.5: 2.6 µg/m³ PM10: 3.4 µg/m³
58
Paris
19.7 km PM2.5: 15.4 µg/m³
18
Paris
19.7 km PM2.5: 4.3 µg/m³
33
Paris
19.7 km PM2.5: 7.9 µg/m³
48
Paris
19.7 km PM2.5: 11.5 µg/m³
37
Paris
19.7 km PM2.5: 8.9 µg/m³

What cities are near Marly-le-Roi?

30 Le Pecq 29 Saint-Germain-en-Laye 31 Le Vésinet 29 La Celle-Saint-Cloud 27 Le Chesnay 31 Chatou 31 Montesson 31 Poissy 25 Saint-Cyr-l'École 29 Garches
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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 2026-09-05T19:46 UTC.