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Arcos de Valdevez (Viana do Castelo) (PT)

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

阴沉
13°C
阴沉
Humidity
71.1%
Wind
4 m/s
Pressure
1005.4 hPa
Direction
54°
Sunrise
04:00
Sunset
16:00
24h Forecast:
Temp.
11° / 23°
Precip.
5.7mm
Max wind
6.6 m/s

Hourly Forecast

21.04
Now
Weather
13°
21.04
03:00
Weather
14°
21.04
04:00
Weather
16°
21.04
05:00
Weather
16°
6
21.04
06:00
Weather
17°
6
21.04
07:00
Weather
18°
5
21.04
08:00
Weather
20°
7
21.04
09:00
Weather
21°
6
21.04
10:00
Weather
23°
6
21.04
11:00
Weather
23°
0.3
5
21.04
12:00
Weather
23°
0.5
6
21.04
13:00
Weather
23°
2.2
6
21.04
14:00
Weather
19°
21.04
15:00
Weather
19°
5
21.04
16:00
Weather
17°
0.1
5
21.04
17:00
Weather
16°
21.04
18:00
Weather
15°
0.1
21.04
19:00
Weather
15°
0.5
21.04
20:00
Weather
14°
0.6
21.04
21:00
Weather
13°
0.7
21.04
22:00
Weather
12°
0.5
21.04
23:00
Weather
12°
22.04
00:00
Weather
11°
0.1
22.04
01:00
Weather
11°
0.1

Temperature

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

Precipitation

2.2mm
0mm
11:00
0.3mm
12:00
0.5mm
13:00
2.2mm
16:00
0.1mm
18:00
0.1mm
19:00
0.5mm
20:00
0.6mm
21:00
0.7mm
22:00
0.5mm
00:00
0.1mm
01:00
0.1mm
02:00 13:00 01:00

Wind

6.6m/s
0m/s
02:00
4.1 m/s
03:00
4.6 m/s
04:00
4.9 m/s
05:00
6 m/s
06:00
5.5 m/s
07:00
5.4 m/s
08:00
6.6 m/s
09:00
6 m/s
10:00
5.8 m/s
11:00
5.3 m/s
12:00
5.9 m/s
13:00
6.3 m/s
14:00
3.8 m/s
15:00
5.1 m/s
16:00
5.2 m/s
17:00
3.9 m/s
18:00
4.6 m/s
19:00
4.2 m/s
20:00
3.5 m/s
21:00
2.9 m/s
22:00
2.6 m/s
23:00
2.1 m/s
00:00
2.5 m/s
01:00
2.7 m/s
02:00 13:00 01:00

Radiation

0.178 uSv
46.8 km
22.2%

Measurement time: 2026-04-20 18:00

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
67 km
97
32.3%

Measurement time: 2026-04-21 03:00

Calculated from PM2.5/PM10

O3
72.2 km
99.86 µg/m3
62.4%

Measurement time: 2026-04-21 02:45

source: OpenWeatherMap

PM2.5
67 km
34 µg/m3
40.5%

Measurement time: 2026-04-21 03:00

source: Aqicn

PM10
63.8 km
24 µg/m3
17.1%

Measurement time: 2026-04-21 02:00

source: Aqicn

NO2
89.4 km
6.79 µg/m3
3.4%

Measurement time: 2026-04-21 03:51

source: OpenWeatherMap

CO
89.4 km
0.16547 mg/m3
1.2%

Measurement time: 2026-04-21 03:51

source: OpenWeatherMap

SO2
89.4 km
1.68 µg/m3
0.5%

Measurement time: 2026-04-21 03:51

source: OpenWeatherMap

Info


Country: Portugal
Latitude: 41.84668
Longitude: -8.41905

Cities in the area:

About Air Quality in Arcos de Valdevez

Air quality in Arcos de Valdevez 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 Arcos de Valdevez

  • 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 Arcos de Valdevez?

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 Arcos de Valdevez

If you're planning outdoor activities in Arcos de Valdevez, 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.