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Guifões (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

Heavy rain
11°C
Heavy rain
Humidity
73.5%
Wind
12 m/s
Pressure
995.2 hPa
Direction
239°
Sunrise
05:00
Sunset
17:00
24h Forecast:
Temp.
8° / 11°
Precip.
41.8mm
Max wind
12.3 m/s

Hourly Forecast

02.02
Now
Weather
11°
2.9
12
02.02
14:00
Weather
10°
3.1
12
02.02
15:00
Weather
11°
1
11
02.02
16:00
Weather
11°
1.3
12
02.02
17:00
Weather
11°
0.9
12
02.02
18:00
Weather
10°
0.4
11
02.02
19:00
Weather
10°
0.3
10
02.02
20:00
Weather
10°
1.2
10
02.02
21:00
Weather
10°
3.5
8
02.02
22:00
Weather
10°
1.4
9
02.02
23:00
Weather
10°
4.2
7
03.02
00:00
Weather
1.3
7
03.02
01:00
Weather
4.8
7
03.02
02:00
Weather
0.5
6
03.02
03:00
Weather
1.6
6
03.02
04:00
Weather
1.4
8
03.02
05:00
Weather
2.4
7
03.02
06:00
Weather
1.4
7
03.02
07:00
Weather
3.3
8
03.02
08:00
Weather
1.7
8
03.02
09:00
Weather
1.5
9
03.02
10:00
Weather
10°
1.7
8
03.02
11:00
Weather
11°
7
03.02
12:00
Weather
11°
6

Temperature

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

Precipitation

4.8mm
0mm
13:00
2.9mm
14:00
3.1mm
15:00
1mm
16:00
1.3mm
17:00
0.9mm
18:00
0.4mm
19:00
0.3mm
20:00
1.2mm
21:00
3.5mm
22:00
1.4mm
23:00
4.2mm
00:00
1.3mm
01:00
4.8mm
02:00
0.5mm
03:00
1.6mm
04:00
1.4mm
05:00
2.4mm
06:00
1.4mm
07:00
3.3mm
08:00
1.7mm
09:00
1.5mm
10:00
1.7mm
13:00 00:00 12:00

Wind

12.3m/s
0m/s
13:00
12.2 m/s
14:00
11.6 m/s
15:00
11 m/s
16:00
12.2 m/s
17:00
12.3 m/s
18:00
10.8 m/s
19:00
10.4 m/s
20:00
9.5 m/s
21:00
8.2 m/s
22:00
9 m/s
23:00
6.8 m/s
00:00
7 m/s
01:00
6.7 m/s
02:00
5.6 m/s
03:00
5.9 m/s
04:00
7.7 m/s
05:00
7 m/s
06:00
7.4 m/s
07:00
8 m/s
08:00
8 m/s
09:00
9.2 m/s
10:00
7.7 m/s
11:00
7.4 m/s
12:00
6.4 m/s
13:00 00:00 12:00

Radiation

0.098 uSv
8.6 km
12.2%

Measurement time: 2026-02-02 07:00

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
73.6 km
2
0.7%

Measurement time: 2026-02-02 12:28

Calculated from PM2.5/PM10

O3
73.6 km
85.58 µg/m3
53.5%

Measurement time: 2026-02-02 12:28

source: OpenWeatherMap

CO
73.6 km
0.13672 mg/m3
1%

Measurement time: 2026-02-02 12:28

source: OpenWeatherMap

PM10
73.6 km
1.05 µg/m3
0.8%

Measurement time: 2026-02-02 12:28

source: OpenWeatherMap

PM2.5
73.6 km
0.52 µg/m3
0.6%

Measurement time: 2026-02-02 12:28

source: OpenWeatherMap

NO2
73.6 km
0.6 µg/m3
0.3%

Measurement time: 2026-02-02 12:28

source: OpenWeatherMap

SO2
73.6 km
0.19 µg/m3
0.1%

Measurement time: 2026-02-02 12:28

source: OpenWeatherMap

About Air Quality in Guifões

Air quality in Guifões 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 Guifões

  • 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 Guifões?

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 Guifões

If you're planning outdoor activities in Guifões, 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.