Air Quality in Saint-Germain-en-Laye, France

Windy
20.1°C · 37.7% humidity
20.1°
Feels 20.1°
27
Good
Air quality is satisfactory. Enjoy outdoor activities.
9 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
15 2pm
12
18
27 5pm
22
19
17 8pm
17
16
15 11pm
22
21
21 2am
21
20
20 5am
20
13
13 8am
13
13
13 11am
13
11
Station readings
15
12
18
CAMS model adj -14
34
24
24
24
24
24
25
27
27
27
34
34
34
34
34
34
34
27
27
27
27
27
27
25
AD 728×90

Air Quality Index Trend

47h · 3 stn

Saint-Germain-en-Laye'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
2.9
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
27
6.48 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Saint-Germain-en-Laye?

Temperature & Precipitation

PM2.5 Trend

47h · 3 stations
PM2.56.48 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX2.9
Moderate
AD 300×250
Station readings (9 stations within 25 km)
6.48
Median
6.05
Average
0.99
Low
10.3
High
PM2.5 µg/m³ · Model: 5.9 · Bias: -0.6

What is the 7-day forecast for Saint-Germain-en-Laye?

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: 3.9°C

Where are air quality stations near Saint-Germain-en-Laye?

33
La Defense, Paris
11.0 km PM2.5: 7.9 µg/m³
34
La Defense, Paris
11.0 km PM2.5: 8.2 µg/m³
11
Paris Stade Lenglen, Paris
15.0 km PM2.5: 2.6 µg/m³
16
Paris Stade Lenglen, Paris
15.0 km PM2.5: 3.8 µg/m³
12
Paris Stade Lenglen, Paris
15.0 km PM2.5: 2.9 µg/m³
29
Gennevilliers, Paris
15.4 km PM2.5: 7.0 µg/m³
46
Gennevilliers, Paris
15.4 km PM2.5: 11.0 µg/m³
20
Avenue Des Champs Elysees, Paris
16.5 km PM2.5: 4.8 µg/m³
23
Avenue Des Champs Elysees, Paris
16.5 km PM2.5: 5.5 µg/m³
20
Cergy-pontoise, Paris
17.0 km PM2.5: 4.8 µg/m³

What cities are near Saint-Germain-en-Laye?

27 Le Pecq 28 Le Vésinet 25 Marly-le-Roi 28 Montesson 30 Poissy 28 Chatou 25 La Celle-Saint-Cloud 32 Carrières-sous-Poissy 32 Achères 30 Maisons-Laffitte
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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 2026-09-05T15:09 UTC.