Air Quality in Hérouville-Saint-Clair, France

Clear
19.6°C · 29.1% humidity
19.6°
Feels 19.6°
18
Good
Air quality is satisfactory. Enjoy outdoor activities.
2 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
28 1am
28
21
18 4am
21
21
21 7am
21
28
28 10am
28
48
48 1pm
48
48
48 4pm
48
28
28 7pm
28
28
28 10pm
28
28
Station readings
28
18
CAMS model adj -6
34
34
27
27
27
27
27
27
34
34
34
54
54
54
54
54
54
34
34
34
34
34
34
34
AD 728×90

Air Quality Index Trend

22h · 2 stn

Hérouville-Saint-Clair'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.

29.1%
Humidity
39.1 km/h
Wind ESE
1012.2 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
18
4.4 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Hérouville-Saint-Clair?

Temperature & Precipitation

PM2.5 Trend

22h · 2 stations
PM2.54.4 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (2 stations within 25 km)
4.4
Median
4.45
Average
4.1
Low
4.8
High
PM2.5 µg/m³ · Model: 6.5 · Bias: +2.1

What is the 7-day forecast for Hérouville-Saint-Clair?

07-22
23.3° 19.6°
0.06 mm
07-23
20.3° 18.1°
0.06 mm
07-24
21.2° 15.0°
12.81 mm
07-25
25.5° 13.0°
07-26
19.4° 13.7°
6.25 mm
07-27
23.0° 17.7°
1.31 mm
07-28
25.5° 16.4°
Both models agree Avg diff: 2.2°C

Where are air quality stations near Hérouville-Saint-Clair?

–
france-cambes-en-plaine-rue-de-la-serpe
5.6 km 15.0°C 72.5% RH PM2.5: 0.0 µg/m³ PM10: 0.0 µg/m³
51
Caen Chemin-Vert Square Schuman, France
6.5 km PM2.5: 12.1 µg/m³
114
Caen Chemin-Vert Square Schuman, France
6.5 km PM2.5: 40.8 µg/m³
33
Caen Chemin-Vert Square Schuman, France
6.5 km PM2.5: 7.9 µg/m³
40
Ifs Rue Paul Claudel, France
7.4 km PM2.5: 9.6 µg/m³
48
Ifs Rue Paul Claudel, France
7.4 km PM2.5: 11.5 µg/m³

What cities are near Hérouville-Saint-Clair?

18 Caen 17 Bayeux 35 Lisieux 37 Le Havre 29 Montivilliers 36 Argentan 24 Flers 24 Saint-Lô 37 Fécamp 27 Alençon
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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 2026-07-22T02:18 UTC.