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Saint-Hilaire-de-Riez (Pays de la Loire) (FR)

Air Quality Trend (last 7 days)

Good (0-50)
Moderate (51-100)
Unhealthy for Sensitive Groups (101-150)
Unhealthy (151-200)
Very Unhealthy (201-300)
Hazardous (300+)

Weather - 48h MET Norway

Fair
8°C
Fair
Humidity
85.9%
Wind
7 m/s
Pressure
996.7 hPa
Direction
244°
Sunrise
05:00
Sunset
17:00
24h Forecast:
Temp.
8° / 12°
Precip.
3.8mm
Max wind
9.9 m/s

Hourly Forecast

31.01
Now
Weather
7
31.01
07:00
Weather
8
31.01
08:00
Weather
0.2
8
31.01
09:00
Weather
10°
0.6
7
31.01
10:00
Weather
10°
5
31.01
11:00
Weather
11°
7
31.01
12:00
Weather
12°
9
31.01
13:00
Weather
11°
10
31.01
14:00
Weather
11°
8
31.01
15:00
Weather
11°
9
31.01
16:00
Weather
11°
10
31.01
17:00
Weather
10°
9
31.01
18:00
Weather
10°
9
31.01
19:00
Weather
10°
9
31.01
20:00
Weather
10°
9
31.01
21:00
Weather
10°
1
9
31.01
22:00
Weather
0.4
8
31.01
23:00
Weather
10°
0.2
7
01.02
00:00
Weather
10°
0.2
7
01.02
01:00
Weather
0.3
7
01.02
02:00
Weather
10°
0.3
6
01.02
03:00
Weather
0.2
01.02
04:00
Weather
10°
0.4
7
01.02
05:00
Weather
10°
8

Temperature

12°C
8°C
06:00
8°C
07:00
9°C
08:00
9°C
09:00
10°C
10:00
10°C
11:00
11°C
12:00
12°C
13:00
11°C
14:00
11°C
15:00
11°C
16:00
11°C
17:00
10°C
18:00
10°C
19:00
10°C
20:00
10°C
21:00
10°C
22:00
9°C
23:00
10°C
00:00
10°C
01:00
9°C
02:00
10°C
03:00
9°C
04:00
10°C
05:00
10°C
06:00 17:00 05:00

Precipitation

1mm
0mm
08:00
0.2mm
09:00
0.6mm
21:00
1mm
22:00
0.4mm
23:00
0.2mm
00:00
0.2mm
01:00
0.3mm
02:00
0.3mm
03:00
0.2mm
04:00
0.4mm
06:00 17:00 05:00

Wind

9.9m/s
0m/s
06:00
7.1 m/s
07:00
7.5 m/s
08:00
8.1 m/s
09:00
7.4 m/s
10:00
5.3 m/s
11:00
6.5 m/s
12:00
9.2 m/s
13:00
9.9 m/s
14:00
7.5 m/s
15:00
8.8 m/s
16:00
9.5 m/s
17:00
8.6 m/s
18:00
8.5 m/s
19:00
8.7 m/s
20:00
9.2 m/s
21:00
9.2 m/s
22:00
7.7 m/s
23:00
6.7 m/s
00:00
7.4 m/s
01:00
6.6 m/s
02:00
5.6 m/s
03:00
4.3 m/s
04:00
7 m/s
05:00
8.4 m/s
06:00 17:00 05:00

Radiation

0.094 uSv
32.9 km
11.8%

Measurement time: 2026-01-31 04:00

source: remap_europe

We display the worst measurements from all stations in the area. This approach provides a more cautious assessment of air quality, accounting for local pollution sources.

AQI
63.8 km
78
26%

Measurement time: 2026-01-31 06:00

Calculated from PM2.5/PM10

O3
93 km
100.07 µg/m3
62.5%

Measurement time: 2026-01-31 06:42

source: OpenWeatherMap

PM2.5
63.8 km
25 µg/m3
29.8%

Measurement time: 2026-01-31 06:00

source: Aqicn

PM10
63.8 km
9 µg/m3
6.4%

Measurement time: 2026-01-31 06:00

source: Aqicn

NO2
89.3 km
4.2 µg/m3
2.1%

Measurement time: 2026-01-31 06:00

source: Aqicn

CO
93 km
0.13248 mg/m3
0.9%

Measurement time: 2026-01-31 06:42

source: OpenWeatherMap

SO2
93 km
0.07 µg/m3
0%

Measurement time: 2026-01-31 06:42

source: OpenWeatherMap

Info


Country: France
Latitude: 46.71308
Longitude: -1.92583

Cities in the area:

About Air Quality in Saint-Hilaire-de-Riez

Air quality in Saint-Hilaire-de-Riez is monitored in real-time by sensors and measurement stations. On this page you'll find current data on major air pollutants including particulate matter PM2.5 and PM10, nitrogen dioxide (NO2), ozone (O3), and radiation levels.

Common Pollutants in Saint-Hilaire-de-Riez

  • PM2.5 - fine particulate matter up to 2.5 micrometers, particularly harmful to health
  • PM10 - particulate matter up to 10 micrometers from traffic and industry
  • NO2 - nitrogen dioxide mainly emitted by vehicles
  • O3 - tropospheric ozone formed in photochemical reactions

When is Air Quality Best in Saint-Hilaire-de-Riez?

Generally, the best air quality occurs:

  • Early morning (5:00-7:00 AM) before rush hour traffic
  • After rainfall which cleanses the atmosphere
  • During strong winds that disperse pollutants
  • In summer months when heating systems are less used

Tips for Runners in Saint-Hilaire-de-Riez

If you're planning outdoor activities in Saint-Hilaire-de-Riez, always check the current AQI value. When AQI exceeds 100, consider moving your workout indoors or shortening the distance. People with respiratory issues, children, and seniors should be especially cautious during elevated pollution levels. Choose routes away from busy streets and industrial areas.