Air Quality in Hérouville-Saint-Clair, France

Windy
24.0°C · 43.6% humidity
24.0°
Feels 24.0°
33
Good
Air quality is satisfactory. Enjoy outdoor activities.
1 station

Nearby Monitoring Stations

AQI Forecast Calibrated
20 3am
21
16
33 6am
30
27
25 9am
24
30
30 12pm
29
22
22 3pm
21
21
19 6pm
19
19
19 9pm
21
21
21 12am
21
21
Station readings
20
21
16
14
CAMS model adj -6
27
27
27
27
27
27
27
27
34
34
34
27
27
27
27
25
25
25
25
27
27
27
27
27
AD 728×90

Air Quality Index Trend

33h · 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.

43.6%
Humidity
52.4 km/h
Wind WSW
1013.6 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
PM2.5
33
7.9 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

Temperature & Precipitation

PM2.5 Trend

33h · 2 stations
PM2.57.9 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
7.9
Median
7.9
Average
7.9
Low
7.9
High
PM2.5 µg/m³ · Model: 6.15 · Bias: -1.8
08-03
32.4° 16.7°
4.12 mm
08-04
23.0° 15.6°
0.06 mm
08-05
22.0° 15.5°
08-06
22.7° 14.9°
2.62 mm
08-07
23.4° 12.9°
4.06 mm
08-08
23.1° 13.7°
1.37 mm
08-09
19.2° 14.0°
0.44 mm
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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 2026-08-08T04:57 UTC.