Air Quality in Saint-Gratien, France

Windy
20.1°C · 38.5% humidity
20.1°
Feels 20.1°
30
Good
Air quality is satisfactory. Enjoy outdoor activities.
8 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
18 3pm
30
21
30 6pm
28
26
27 9pm
33
32
31 12am
31
31
30 3am
23
23
23 6am
23
23
23 9am
23
23
23 12pm
21
21
Station readings
18
30
21
CAMS model adj -4
25
24
24
24
25
25
27
34
34
34
34
34
34
27
27
27
27
27
27
27
27
27
25
25
AD 728×90

Air Quality Index Trend

47h · 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.

38.5%
Humidity
53.8 km/h
Wind NE
1026.2 hPa
Pressure
1.4
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
30
7.24 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Saint-Gratien?

Temperature & Precipitation

PM2.5 Trend

47h · 2 stations
PM2.57.24 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX1.4
Low
AD 300×250
Station readings (8 stations within 25 km)
7.24
Median
7.05
Average
1.69
Low
11.8
High
PM2.5 µg/m³ · Model: 5.9 · Bias: -1.3

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

09-05
24.4° 12.7°
09-06
23.6° 16.8°
0.06 mm
09-07
22.1° 14.4°
14.5 mm
09-08
24.3° 14.9°
1.81 mm
09-09
24.6° 14.3°
0.31 mm
09-10
24.2° 14.7°
09-11
21.4° 13.3°
1.06 mm
Both models agree Avg diff: 3.7°C

Where are air quality stations near Saint-Gratien?

28
Gennevilliers, Paris
4.8 km PM2.5: 6.7 µg/m³
46
Gennevilliers, Paris
4.8 km PM2.5: 11.0 µg/m³
50
Autoroute A1 - Saint-denis, Paris
7.4 km PM2.5: 12.0 µg/m³
33
La Defense, Paris
9.8 km PM2.5: 7.9 µg/m³
36
Paris 18eme, Paris
10.0 km PM2.5: 8.6 µg/m³
26
france-paris-boulevard-de-denain
11.5 km PM2.5: 6.3 µg/m³ PM10: 12.3 µg/m³
25
Gonesse, Paris
11.6 km PM2.5: 6.0 µg/m³
22
Gonesse, Paris
11.6 km PM2.5: 5.3 µg/m³
23
Avenue Des Champs Elysees, Paris
11.8 km PM2.5: 5.5 µg/m³
49
Paris 1er Les Halles, Paris
13.1 km PM2.5: 11.8 µg/m³

What cities are near Saint-Gratien?

30 Soisy-sous-Montmorency 31 Eaubonne 31 Ermont 30 Sannois 31 Deuil-la-Barre 30 Épinay-sur-Seine 30 Argenteuil 31 Franconville 29 Villeneuve-la-Garenne 31 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 2026-09-05T16:31 UTC.