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

Windy
22.5°C · 62.2% humidity
22.5°
Feels 22.5°
47
Good
Air quality is satisfactory. Enjoy outdoor activities.
9 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
36 7pm
30
45
47 10pm
36
33
31 1am
29
28
27 4am
26
26
26 7am
26
25
25 10am
32
52
52 1pm
52
32
32 4pm
32
32
Station readings
36
30
45
CAMS model adj -2
34
34
34
34
27
27
27
27
27
27
27
27
27
27
27
27
34
54
54
54
34
34
34
34
AD 728×90

Air Quality Index Trend

47h · 2 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.

62.2%
Humidity
81.7 km/h
Wind NE
1015.8 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
47
11.3 µg/m³
PM10
31
34.3 µg/m³
050100150200300500

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

Temperature & Precipitation

PM2.5 Trend

47h · 2 stations
PM2.511.3 µg/m³ ✓ WHO
Good
PM1034.3 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (9 stations within 25 km)
11.3
Median
13.93
Average
2.2
Low
23.5
High
PM2.5 µg/m³ · Model: 10.85 · Bias: -0.4

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

05-29
22.5° 12.4°
0.31 mm
05-30
18.2° 12.3°
3.06 mm
05-31
26.2° 13.4°
06-01
25.9° 11.7°
06-02
19.0° 12.5°
6.81 mm
06-03
18.4° 11.9°
06-04
21.4° 18.0°
16.38 mm
Both models agree Avg diff: 3.5°C

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

37
La Defense, Paris
11.0 km PM2.5: 8.9 µg/m³
55
La Defense, Paris
11.0 km PM2.5: 14.0 µg/m³
11
Paris Stade Lenglen, Paris
15.0 km PM2.5: 2.6 µg/m³
10
Paris Stade Lenglen, Paris
15.0 km PM2.5: 2.4 µg/m³
53
Paris Stade Lenglen, Paris
15.0 km PM2.5: 13.1 µg/m³
127
Gennevilliers, Paris
15.4 km PM2.5: 46.1 µg/m³
63
Gennevilliers, Paris
15.4 km PM2.5: 17.8 µg/m³
22
Gennevilliers, Paris
15.4 km PM2.5: 5.3 µg/m³
129
Gennevilliers, Paris
15.4 km PM2.5: 46.9 µg/m³
43
Avenue Des Champs Elysees, Paris
16.5 km PM2.5: 10.3 µg/m³

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

45 Le Pecq 42 Le Vésinet 47 Marly-le-Roi 42 Montesson 50 Poissy 38 Chatou 42 La Celle-Saint-Cloud 52 Carrières-sous-Poissy 52 Achères 47 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 2026-05-29T20:11 UTC.