Air Quality in Marly-le-Roi, France

Clear
21.1°C · 28.4% humidity
21.1°
Feels 21.1°
45
Good
Air quality is satisfactory. Enjoy outdoor activities.
10 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
10 6am
12
15
45 9am
35
47
42 12pm
38
16
34 3pm
32
32
31 6pm
10
10
10 9pm
9
9
9 12am
9
9
29 3am
9
9
Station readings
10
12
15
CAMS model adj -25
34
34
34
34
34
54
54
54
34
54
54
54
54
34
34
34
34
34
34
34
34
54
34
34
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.

28.4%
Humidity
18.8 km/h
Wind E
1013.5 hPa
Pressure
4.4
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
45
10.66 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
PM2.510.66 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX4.4
Moderate
AD 300×250
Station readings (10 stations within 25 km)
10.66
Median
11.42
Average
1.7
Low
46.5
High
PM2.5 µg/m³ · Model: 7.1 · Bias: -3.6

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

07-22
29.1° 21.1°
07-23
23.8° 21.0°
07-24
25.2° 18.3°
5.75 mm
07-25
32.9° 14.0°
07-26
27.1° 14.9°
07-27
27.9° 17.9°
07-28
28.0° 17.5°
Both models agree Avg diff: 3.0°C

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

56
La Defense, Paris
11.8 km PM2.5: 14.5 µg/m³
56
La Defense, Paris
11.8 km PM2.5: 14.5 µg/m³
31
Paris Stade Lenglen, Paris
14.2 km PM2.5: 7.4 µg/m³
36
Paris Stade Lenglen, Paris
14.2 km PM2.5: 8.6 µg/m³
23
Paris Stade Lenglen, Paris
14.2 km PM2.5: 5.5 µg/m³
9
Avenue Des Champs Elysees, Paris
16.7 km PM2.5: 2.2 µg/m³
12
Avenue Des Champs Elysees, Paris
16.7 km PM2.5: 2.9 µg/m³
12
Gennevilliers, Paris
17.0 km PM2.5: 2.9 µg/m³
35
Gennevilliers, Paris
17.0 km PM2.5: 8.4 µg/m³
27
Gennevilliers, Paris
17.0 km PM2.5: 6.5 µg/m³

What cities are near Marly-le-Roi?

45 Le Pecq 49 Saint-Germain-en-Laye 42 Le Vésinet 35 La Celle-Saint-Cloud 30 Le Chesnay 40 Chatou 45 Montesson 59 Poissy 32 Saint-Cyr-l'École 31 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 2026-07-22T07:48 UTC.