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Santa Comba Dão (Viseu) (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

Clear sky
10°C
Clear sky
Humidity
74.1%
Wind
4 m/s
Pressure
1015.2 hPa
Direction
38°
Sunrise
05:00
Sunset
17:00
24h Forecast:
Temp.
8° / 20°
Precip.
0mm
Max wind
5.5 m/s

Hourly Forecast

04.03
Now
Weather
10°
04.03
05:00
Weather
10°
04.03
06:00
Weather
10°
5
04.03
07:00
Weather
10°
5
04.03
08:00
Weather
11°
6
04.03
09:00
Weather
12°
5
04.03
10:00
Weather
14°
5
04.03
11:00
Weather
16°
5
04.03
12:00
Weather
18°
04.03
13:00
Weather
19°
04.03
14:00
Weather
20°
04.03
15:00
Weather
20°
04.03
16:00
Weather
20°
04.03
17:00
Weather
19°
04.03
18:00
Weather
16°
04.03
19:00
Weather
13°
04.03
20:00
Weather
11°
04.03
21:00
Weather
10°
04.03
22:00
Weather
10°
04.03
23:00
Weather
05.03
00:00
Weather
05.03
01:00
Weather
05.03
02:00
Weather
05.03
03:00
Weather

Temperature

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

Precipitation

0mm
0mm
04:00 15:00 03:00

Wind

5.5m/s
0m/s
04:00
4.1 m/s
05:00
4.7 m/s
06:00
5.1 m/s
07:00
5.4 m/s
08:00
5.5 m/s
09:00
5.3 m/s
10:00
5.4 m/s
11:00
5.2 m/s
12:00
4.4 m/s
13:00
3.4 m/s
14:00
2.6 m/s
15:00
2 m/s
16:00
1.9 m/s
17:00
3.5 m/s
18:00
2.1 m/s
19:00
2.6 m/s
20:00
2.8 m/s
21:00
2.5 m/s
22:00
1.5 m/s
23:00
1.4 m/s
00:00
1.7 m/s
01:00
1.2 m/s
02:00
0.7 m/s
03:00
0.8 m/s
04:00 15:00 03:00

Radiation

0.182 uSv
23.2 km
22.8%

Measurement time: 2026-03-03 23:00

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
94.4 km
27
9%

Measurement time: 2026-03-04 03:11

Calculated from PM2.5/PM10

O3
94.4 km
42.75 µg/m3
26.7%

Measurement time: 2026-03-04 03:11

source: OpenWeatherMap

PM10
94.4 km
15.86 µg/m3
11.3%

Measurement time: 2026-03-04 03:11

source: OpenWeatherMap

PM2.5
94.4 km
6.65 µg/m3
7.9%

Measurement time: 2026-03-04 03:11

source: OpenWeatherMap

NO2
94.4 km
9.5 µg/m3
4.8%

Measurement time: 2026-03-04 03:11

source: OpenWeatherMap

CO
94.4 km
0.15937 mg/m3
1.1%

Measurement time: 2026-03-04 03:11

source: OpenWeatherMap

SO2
94.4 km
1.07 µg/m3
0.3%

Measurement time: 2026-03-04 03:11

source: OpenWeatherMap

Info


Country: Portugal
Region: Viseu
Latitude: 40.39856
Longitude: -8.1316

About Air Quality in Santa Comba Dão

Air quality in Santa Comba Dão 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 Santa Comba Dão

  • 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 Santa Comba Dão?

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 Santa Comba Dão

If you're planning outdoor activities in Santa Comba Dão, 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.