Air Quality in Saint-Gratien, France

Clear
20.6°C · 30.5% humidity
20.6°
Feels 20.6°
48
Good
Air quality is satisfactory. Enjoy outdoor activities.
21 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
5 4am
8
10
48 7am
37
29
43 10am
39
36
33 1pm
32
31
30 4pm
29
29
29 7pm
9
8
8 10pm
8
8
8 1am
8
28
Station readings
5
10
10
11
CAMS model adj -26
34
34
34
34
34
34
54
54
54
54
54
54
54
54
54
54
34
34
34
34
34
34
34
54
AD 728×90

Air Quality Index Trend

48h · 2 stn

Saint-Gratien'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.

30.5%
Humidity
21.7 km/h
Wind ESE
1013.6 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
48
11.36 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Saint-Gratien?

Temperature & Precipitation

PM2.5 Trend

48h · 2 stations
PM2.511.36 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (21 stations within 25 km)
11.36
Median
6.25
Average
1.27
Low
34.9
High
PM2.5 µg/m³ · Model: 7.1 · Bias: -4.3

What is the 7-day forecast for Saint-Gratien?

07-22
29.1° 20.6°
07-23
24.1° 21.0°
07-24
25.6° 18.5°
4.69 mm
07-25
33.4° 14.0°
07-26
28.3° 15.5°
0.13 mm
07-27
28.5° 19.2°
07-28
28.0° 17.0°
Both models agree Avg diff: 3.0°C

Where are air quality stations near Saint-Gratien?

53
Gennevilliers, Paris
4.8 km PM2.5: 13.1 µg/m³
89
Gennevilliers, Paris
4.8 km PM2.5: 30.2 µg/m³
18
Gennevilliers, Paris
4.8 km PM2.5: 4.3 µg/m³
52
Gennevilliers, Paris
4.8 km PM2.5: 12.6 µg/m³
47
Autoroute A1 - Saint-denis, Paris
7.4 km PM2.5: 11.3 µg/m³
56
La Defense, Paris
9.8 km PM2.5: 14.5 µg/m³
56
La Defense, Paris
9.8 km PM2.5: 14.5 µg/m³
55
Paris 18eme, Paris
10.0 km PM2.5: 14.0 µg/m³
36
Paris 18eme, Paris
10.0 km PM2.5: 8.6 µg/m³
46
Paris 18eme, Paris
10.0 km PM2.5: 11.0 µg/m³

What cities are near Saint-Gratien?

42 Soisy-sous-Montmorency 40 Eaubonne 41 Ermont 46 Sannois 42 Deuil-la-Barre 53 Épinay-sur-Seine 49 Argenteuil 40 Franconville 57 Villeneuve-la-Garenne 37 Montmorency
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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 2026-07-22T05:49 UTC.