Air Quality in Saint-Martin-d'Hères, France

Clear
25.1°C · 45.9% humidity
25.1°
Feels 25.1°
40
Good
Air quality is satisfactory. Enjoy outdoor activities.
10 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
23 11am
31
39
40 2pm
37
36
34 5pm
33
33
32 8pm
34
34
33 11pm
33
33
33 2am
33
33
33 5am
33
33
33 8am
33
31
Station readings
23
31
39
49
CAMS model adj +6
25
25
25
25
25
25
25
25
25
25
27
27
27
27
27
27
27
27
27
27
27
27
27
25
AD 728×90

Air Quality Index Trend

48h · 5 stn

Saint-Martin-d'Hères'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.

45.9%
Humidity
31.3 km/h
Wind NNW
1018.2 hPa
Pressure
17.4
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
40
9.53 µg/m³
PM10
19
20.55 µg/m³
050100150200300500

What is the weather forecast for Saint-Martin-d'Hères?

Temperature & Precipitation

PM2.5 Trend

48h · 5 stations
PM2.59.53 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX17.4
Extreme
AD 300×250
Station readings (10 stations within 25 km)
9.53
Median
9.11
Average
5.3
Low
12.0
High
PM2.5 µg/m³ · Model: 9.75 · Bias: +0.2

What is the 7-day forecast for Saint-Martin-d'Hères?

09-05
25.1° 11.0°
09-06
20.0° 9.7°
4.06 mm
09-07
28.1° 8.9°
1.13 mm
09-08
27.9° 11.5°
0.25 mm
09-09
21.3° 11.8°
0.38 mm
09-10
29.5° 10.0°
1.0 mm
09-11
22.3° 9.6°
Both models agree Avg diff: 7.2°C

Where are air quality stations near Saint-Martin-d'Hères?

31
Saint-Martin DHeres, France
0.9 km PM2.5: 7.4 µg/m³
50
Saint-Martin DHeres, France
0.9 km PM2.5: 12.0 µg/m³
35
Grenoble Les Frenes, France
2.8 km PM2.5: 8.4 µg/m³
43
Grenoble Les Frenes, France
2.8 km PM2.5: 10.3 µg/m³
22
Grenoble Grands Boulevards, France
3.4 km PM2.5: 5.3 µg/m³
43
Gresivaudan, Est Grenoblois , France
14.6 km PM2.5: 10.3 µg/m³
49
Vif, Sud Grenoblois , France
15.0 km PM2.5: 11.8 µg/m³
32
Vif, Sud Grenoblois , France
15.0 km PM2.5: 7.7 µg/m³
46
Voiron Urbain, France
24.3 km PM2.5: 11.0 µg/m³
41
Voiron Urbain, France
24.3 km PM2.5: 9.8 µg/m³

What cities are near Saint-Martin-d'Hères?

38 Meylan 24 Grenoble 37 Échirolles 32 Fontaine 35 Saint-Égrève 43 Voiron 21 Chambéry 40 Romans-sur-Isère 28 Aix-les-Bains 35 Villefontaine
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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 2026-09-05T12:16 UTC.