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São Mamede de Infesta (Porto) (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

部分多云
21°C
部分多云
Humidity
56.6%
Wind
4 m/s
Pressure
1010.9 hPa
Direction
291°
Sunrise
04:00
Sunset
16:00
24h Forecast:
Temp.
17° / 25°
Precip.
0mm
Max wind
8 m/s

Hourly Forecast

20.04
Now
Weather
21°
20.04
15:00
Weather
21°
20.04
16:00
Weather
21°
20.04
17:00
Weather
21°
20.04
18:00
Weather
20°
20.04
19:00
Weather
18°
20.04
20:00
Weather
17°
20.04
21:00
Weather
17°
20.04
22:00
Weather
18°
20.04
23:00
Weather
19°
6
21.04
00:00
Weather
19°
21.04
01:00
Weather
18°
21.04
02:00
Weather
17°
21.04
03:00
Weather
18°
21.04
04:00
Weather
20°
5
21.04
05:00
Weather
20°
5
21.04
06:00
Weather
20°
7
21.04
07:00
Weather
21°
7
21.04
08:00
Weather
24°
7
21.04
09:00
Weather
25°
7
21.04
10:00
Weather
23°
8
21.04
11:00
Weather
22°
8
21.04
12:00
Weather
22°
6
21.04
13:00
Weather
22°
6

Temperature

25°C
17°C
14:00
21°C
15:00
21°C
16:00
21°C
17:00
21°C
18:00
20°C
19:00
18°C
20:00
17°C
21:00
17°C
22:00
18°C
23:00
19°C
00:00
19°C
01:00
18°C
02:00
17°C
03:00
18°C
04:00
20°C
05:00
20°C
06:00
20°C
07:00
21°C
08:00
24°C
09:00
25°C
10:00
23°C
11:00
22°C
12:00
22°C
13:00
22°C
14:00 01:00 13:00

Precipitation

0mm
0mm
14:00 01:00 13:00

Wind

8m/s
0m/s
14:00
3.5 m/s
15:00
4.2 m/s
16:00
3.8 m/s
17:00
2.9 m/s
18:00
2.3 m/s
19:00
1.9 m/s
20:00
1.7 m/s
21:00
2.6 m/s
22:00
5 m/s
23:00
5.6 m/s
00:00
4.8 m/s
01:00
3.3 m/s
02:00
2.8 m/s
03:00
4.9 m/s
04:00
5.2 m/s
05:00
5.2 m/s
06:00
6.5 m/s
07:00
6.9 m/s
08:00
6.7 m/s
09:00
6.5 m/s
10:00
8 m/s
11:00
8 m/s
12:00
6.3 m/s
13:00
6.3 m/s
14:00 01:00 13:00

Radiation

0.139 uSv
5.8 km
17.4%

Measurement time: 2026-04-20 09:00

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
48.5 km
62
20.7%

Measurement time: 2026-04-20 17:19

Calculated from PM2.5/PM10

O3
48.5 km
123.28 µg/m3
77.1%

Measurement time: 2026-04-20 17:19

source: OpenWeatherMap

PM2.5
48.5 km
17.72 µg/m3
21.1%

Measurement time: 2026-04-20 17:19

source: OpenWeatherMap

PM10
48.5 km
24.16 µg/m3
17.3%

Measurement time: 2026-04-20 17:19

source: OpenWeatherMap

CO
48.5 km
0.13114 mg/m3
0.9%

Measurement time: 2026-04-20 17:19

source: OpenWeatherMap

NO2
48.5 km
1.01 µg/m3
0.5%

Measurement time: 2026-04-20 17:19

source: OpenWeatherMap

SO2
48.5 km
1.55 µg/m3
0.4%

Measurement time: 2026-04-20 17:19

source: OpenWeatherMap

About Air Quality in São Mamede de Infesta

Air quality in São Mamede de Infesta 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 São Mamede de Infesta

  • 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 São Mamede de Infesta?

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 São Mamede de Infesta

If you're planning outdoor activities in São Mamede de Infesta, 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.