Air Quality in Marly-le-Roi, France

Clear
21.1°C · 28.4% humidity
21.1°
Feels 21.1°
17
Good
Air quality is satisfactory. Enjoy outdoor activities.
2 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
10 6am
12
15
17 9am
15
33
32 12pm
31
11
30 3pm
30
30
29 6pm
9
9
9 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
17
4.02 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
PM2.54.02 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX4.4
Moderate
AD 300×250
Station readings (2 stations within 25 km)
4.02
Median
4.01
Average
3.83
Low
4.19
High
PM2.5 µg/m³ · Model: 7.1 · Bias: +3.1

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?

14 Le Pecq 17 Saint-Germain-en-Laye 13 Le Vésinet 13 La Celle-Saint-Cloud 15 Le Chesnay 13 Chatou 12 Montesson 18 Poissy 17 Saint-Cyr-l'École 14 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 2026-07-22T07:35 UTC.