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Grijó (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

Rain
15°C
Rain
Humidity
86.4%
Wind
6 m/s
Pressure
1008.9 hPa
Direction
187°
Sunrise
05:00
Sunset
17:00
24h Forecast:
Temp.
9° / 15°
Precip.
43mm
Max wind
12.7 m/s

Hourly Forecast

01.02
Now
Weather
15°
0.5
6
01.02
15:00
Weather
15°
0.2
6
01.02
16:00
Weather
15°
0.5
7
01.02
17:00
Weather
15°
1.6
8
01.02
18:00
Weather
14°
2.5
9
01.02
19:00
Weather
14°
2.4
9
01.02
20:00
Weather
14°
3
11
01.02
21:00
Weather
14°
1.5
10
01.02
22:00
Weather
14°
0.8
11
01.02
23:00
Weather
13°
0.8
11
02.02
00:00
Weather
13°
1.3
13
02.02
01:00
Weather
13°
3.3
12
02.02
02:00
Weather
13°
6.6
12
02.02
03:00
Weather
12°
2.9
12
02.02
04:00
Weather
12°
1.3
9
02.02
05:00
Weather
11°
0.9
10
02.02
06:00
Weather
11°
0.6
11
02.02
07:00
Weather
0.5
13
02.02
08:00
Weather
10°
2.9
9
02.02
09:00
Weather
2.4
11
02.02
10:00
Weather
10°
1
10
02.02
11:00
Weather
11°
2.3
10
02.02
12:00
Weather
10°
2.6
10
02.02
13:00
Weather
0.6
12

Temperature

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

Precipitation

6.6mm
0mm
14:00
0.5mm
15:00
0.2mm
16:00
0.5mm
17:00
1.6mm
18:00
2.5mm
19:00
2.4mm
20:00
3mm
21:00
1.5mm
22:00
0.8mm
23:00
0.8mm
00:00
1.3mm
01:00
3.3mm
02:00
6.6mm
03:00
2.9mm
04:00
1.3mm
05:00
0.9mm
06:00
0.6mm
07:00
0.5mm
08:00
2.9mm
09:00
2.4mm
10:00
1mm
11:00
2.3mm
12:00
2.6mm
13:00
0.6mm
14:00 01:00 13:00

Wind

12.7m/s
0m/s
14:00
5.8 m/s
15:00
6.4 m/s
16:00
6.5 m/s
17:00
7.9 m/s
18:00
8.5 m/s
19:00
8.6 m/s
20:00
10.6 m/s
21:00
10.3 m/s
22:00
10.6 m/s
23:00
11 m/s
00:00
12.7 m/s
01:00
11.9 m/s
02:00
12.3 m/s
03:00
12.2 m/s
04:00
9.4 m/s
05:00
9.5 m/s
06:00
11.2 m/s
07:00
12.6 m/s
08:00
9.4 m/s
09:00
10.8 m/s
10:00
9.6 m/s
11:00
10.4 m/s
12:00
9.9 m/s
13:00
11.7 m/s
14:00 01:00 13:00

Radiation

0.099 uSv
12.5 km
12.3%

Measurement time: 2026-02-01 08:00

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
32.2 km
69
23%

Measurement time: 2026-02-01 13:00

Calculated from PM2.5/PM10

PM2.5
32.2 km
21 µg/m3
25%

Measurement time: 2026-02-01 13:00

source: Aqicn

PM10
32.2 km
20 µg/m3
14.3%

Measurement time: 2026-02-01 13:00

source: Aqicn

O3
32.2 km
18.3 µg/m3
11.4%

Measurement time: 2026-02-01 13:00

source: Aqicn

NO2
32.2 km
1.9 µg/m3
1%

Measurement time: 2026-02-01 13:00

source: Aqicn

About Air Quality in Grijó

Air quality in Grijó 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 Grijó

  • 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 Grijó?

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 Grijó

If you're planning outdoor activities in Grijó, 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.