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Valenza (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

Rain
4°C
Rain
Humidity
98.3%
Wind
5 m/s
Pressure
996.4 hPa
Direction
157°
Sunrise
05:00
Sunset
17:00
24h Forecast:
Temp.
3° / 9°
Precip.
23.7mm
Max wind
8.4 m/s

Hourly Forecast

03.02
Now
Weather
0.8
03.02
07:00
Weather
0.5
03.02
08:00
Weather
0.9
03.02
09:00
Weather
0.8
03.02
10:00
Weather
3.3
03.02
11:00
Weather
0.8
03.02
12:00
Weather
0.1
03.02
13:00
Weather
0.8
03.02
14:00
Weather
1.6
03.02
15:00
Weather
0.3
03.02
16:00
Weather
0.2
03.02
17:00
Weather
0.5
03.02
18:00
Weather
0.7
03.02
19:00
Weather
1.6
03.02
20:00
Weather
2.1
03.02
21:00
Weather
1.2
6
03.02
22:00
Weather
0.2
7
03.02
23:00
Weather
0.3
8
04.02
00:00
Weather
0.2
8
04.02
01:00
Weather
2
8
04.02
02:00
Weather
1.7
04.02
03:00
Weather
1
04.02
04:00
Weather
1.9
04.02
05:00
Weather
0.2

Temperature

9°C
3°C
06:00
4°C
07:00
3°C
08:00
4°C
09:00
4°C
10:00
5°C
11:00
5°C
12:00
6°C
13:00
7°C
14:00
7°C
15:00
8°C
16:00
8°C
17:00
8°C
18:00
7°C
19:00
7°C
20:00
6°C
21:00
7°C
22:00
7°C
23:00
7°C
00:00
7°C
01:00
7°C
02:00
7°C
03:00
8°C
04:00
9°C
05:00
9°C
06:00 17:00 05:00

Precipitation

3.3mm
0mm
06:00
0.8mm
07:00
0.5mm
08:00
0.9mm
09:00
0.8mm
10:00
3.3mm
11:00
0.8mm
12:00
0.1mm
13:00
0.8mm
14:00
1.6mm
15:00
0.3mm
16:00
0.2mm
17:00
0.5mm
18:00
0.7mm
19:00
1.6mm
20:00
2.1mm
21:00
1.2mm
22:00
0.2mm
23:00
0.3mm
00:00
0.2mm
01:00
2mm
02:00
1.7mm
03:00
1mm
04:00
1.9mm
05:00
0.2mm
06:00 17:00 05:00

Wind

8.4m/s
0m/s
06:00
4.7 m/s
07:00
5 m/s
08:00
4.2 m/s
09:00
3.9 m/s
10:00
3.8 m/s
11:00
3.3 m/s
12:00
3.1 m/s
13:00
3.6 m/s
14:00
3.2 m/s
15:00
3.7 m/s
16:00
4 m/s
17:00
3.8 m/s
18:00
4.3 m/s
19:00
4.3 m/s
20:00
4.7 m/s
21:00
5.7 m/s
22:00
6.6 m/s
23:00
7.5 m/s
00:00
7.7 m/s
01:00
8.4 m/s
02:00
4.7 m/s
03:00
3.9 m/s
04:00
4.4 m/s
05:00
4.9 m/s
06:00 17:00 05:00

Radiation

0.126 uSv
2.9 km
15.8%

Measurement time: 2026-02-03 03:00

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
80.7 km
3
1%

Measurement time: 2026-02-03 06:06

Calculated from PM2.5/PM10

O3
80.7 km
78.78 µg/m3
49.2%

Measurement time: 2026-02-03 06:06

source: OpenWeatherMap

PM10
80.7 km
2.64 µg/m3
1.9%

Measurement time: 2026-02-03 06:06

source: OpenWeatherMap

CO
80.7 km
0.15209 mg/m3
1.1%

Measurement time: 2026-02-03 06:06

source: OpenWeatherMap

PM2.5
80.7 km
0.85 µg/m3
1%

Measurement time: 2026-02-03 06:06

source: OpenWeatherMap

NO2
80.7 km
0.43 µg/m3
0.2%

Measurement time: 2026-02-03 06:06

source: OpenWeatherMap

SO2
80.7 km
0.21 µg/m3
0.1%

Measurement time: 2026-02-03 06:06

source: OpenWeatherMap

Info


Country: Portugal
Latitude: 42.02418
Longitude: -8.63474


Solar Energy

Very low
35.9 W/m²
Solar Radiation
Solar Calculator
Calculate energy production for Valenza

About Air Quality in Valenza

Air quality in Valenza 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 Valenza

  • 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 Valenza?

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 Valenza

If you're planning outdoor activities in Valenza, 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.