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

Clear
26.5°C · 43.1% humidity
26.5°
Feels 26.5°
50
Good
Air quality is satisfactory. Enjoy outdoor activities.
6 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
47 12am
41
36
50 3am
52
52
52 6am
52
52
45 9am
45
45
45 12pm
45
45
43 3pm
—
—
— 6pm
—
—
— 9pm
—
—
Station readings
47
41
36
CAMS model adj +18
27
27
27
34
34
34
34
34
34
27
27
27
27
27
27
25
AD 728×90

Air Quality Index Trend

33h · 4 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.

43.1%
Humidity
23.5 km/h
Wind N
1013.9 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
50
11.89 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

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

Temperature & Precipitation

PM2.5 Trend

33h · 4 stations
PM2.511.89 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (6 stations within 25 km)
11.89
Median
10.53
Average
9.4
Low
12.0
High
PM2.5 µg/m³ · Model: 6.25 · Bias: -5.6

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

08-03
35.6° 20.1°
08-04
29.9° 17.6°
08-05
28.8° 17.5°
0.56 mm
08-06
30.3° 17.8°
0.44 mm
08-07
36.5° 15.3°
0.25 mm
08-08
23.2° 12.4°
0.25 mm
08-09
22.4° 14.1°
0.44 mm
Both models agree Avg diff: 5.4°C

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

34
Saint-Martin DHeres, France
0.9 km PM2.5: 8.2 µg/m³
46
Saint-Martin DHeres, France
0.9 km PM2.5: 11.0 µg/m³
36
Saint-Martin DHeres, France
0.9 km PM2.5: 8.6 µg/m³
35
Saint-Martin DHeres, France
0.9 km PM2.5: 8.4 µg/m³
50
Grenoble Les Frenes, France
2.8 km PM2.5: 12.0 µg/m³
42
Grenoble Les Frenes, France
2.8 km PM2.5: 10.1 µg/m³
88
Grenoble Les Frenes, France
2.8 km PM2.5: 29.7 µg/m³
48
Rocade Sud Eybens, France
3.0 km PM2.5: 11.5 µg/m³
35
Grenoble Grands Boulevards, France
3.4 km PM2.5: 8.4 µg/m³
14
Grenoble Grands Boulevards, France
3.4 km PM2.5: 3.4 µg/m³

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

48 Meylan 47 Grenoble 46 Échirolles 47 Fontaine 46 Saint-Égrève 42 Voiron 32 Chambéry 35 Romans-sur-Isère 37 Aix-les-Bains 40 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 2026-08-08T01:05 UTC.