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Silveira (Lisbon) (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

Cloudy
15°C
Cloudy
Humidity
67.4%
Wind
5 m/s
Pressure
1020.4 hPa
Direction
276°
Sunrise
05:00
Sunset
17:00
24h Forecast:
Temp.
14° / 15°
Precip.
17mm
Max wind
10.3 m/s

Hourly Forecast

31.01
Now
Weather
15°
5
31.01
14:00
Weather
15°
31.01
15:00
Weather
15°
31.01
16:00
Weather
15°
31.01
17:00
Weather
15°
31.01
18:00
Weather
14°
0.1
6
31.01
19:00
Weather
14°
7
31.01
20:00
Weather
14°
8
31.01
21:00
Weather
14°
8
31.01
22:00
Weather
14°
0.2
9
31.01
23:00
Weather
14°
0.4
10
01.02
00:00
Weather
14°
1.8
10
01.02
01:00
Weather
14°
4
10
01.02
02:00
Weather
15°
2.9
9
01.02
03:00
Weather
15°
4
10
01.02
04:00
Weather
15°
1.5
10
01.02
05:00
Weather
15°
10
01.02
06:00
Weather
15°
0.6
8
01.02
07:00
Weather
15°
0.3
8
01.02
08:00
Weather
15°
7
01.02
09:00
Weather
15°
8
01.02
10:00
Weather
15°
8
01.02
11:00
Weather
15°
0.2
8
01.02
12:00
Weather
15°
1
8

Temperature

15°C
14°C
13:00
15°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
14°C
00:00
14°C
01:00
14°C
02:00
15°C
03:00
15°C
04:00
15°C
05:00
15°C
06:00
15°C
07:00
15°C
08:00
15°C
09:00
15°C
10:00
15°C
11:00
15°C
12:00
15°C
13:00 00:00 12:00

Precipitation

4mm
0mm
18:00
0.1mm
22:00
0.2mm
23:00
0.4mm
00:00
1.8mm
01:00
4mm
02:00
2.9mm
03:00
4mm
04:00
1.5mm
06:00
0.6mm
07:00
0.3mm
11:00
0.2mm
12:00
1mm
13:00 00:00 12:00

Wind

10.3m/s
0m/s
13:00
5.1 m/s
14:00
4.5 m/s
15:00
4 m/s
16:00
4.5 m/s
17:00
4.8 m/s
18:00
6.4 m/s
19:00
6.7 m/s
20:00
7.5 m/s
21:00
8.1 m/s
22:00
8.9 m/s
23:00
9.9 m/s
00:00
10.3 m/s
01:00
9.8 m/s
02:00
9.1 m/s
03:00
9.7 m/s
04:00
9.6 m/s
05:00
9.5 m/s
06:00
7.9 m/s
07:00
7.6 m/s
08:00
7.1 m/s
09:00
7.6 m/s
10:00
7.7 m/s
11:00
8 m/s
12:00
7.9 m/s
13:00 00:00 12:00

Radiation

0.053 uSv
42 km
6.6%

Measurement time: 2026-01-31 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
44.4 km
97
32.3%

Measurement time: 2026-01-31 12:00

Calculated from PM2.5/PM10

PM2.5
44.4 km
34 µg/m3
40.5%

Measurement time: 2026-01-31 12:00

source: Aqicn

O3
78.7 km
32.9 µg/m3
20.6%

Measurement time: 2026-01-31 12:00

source: Aqicn

PM10
44.4 km
24 µg/m3
17.1%

Measurement time: 2026-01-31 12:00

source: Aqicn

NO2
44.4 km
11.9 µg/m3
6%

Measurement time: 2026-01-31 12:00

source: Aqicn

SO2
44.4 km
0.6 µg/m3
0.2%

Measurement time: 2026-01-31 12:00

source: Aqicn

Info


Country: Portugal
Region: Lisbon
Latitude: 39.1112
Longitude: -9.3643


Solar Energy

Low
241 W/m²
Solar Radiation
Solar Calculator
Calculate energy production for Silveira

About Air Quality in Silveira

Air quality in Silveira 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 Silveira

  • 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 Silveira?

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 Silveira

If you're planning outdoor activities in Silveira, 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.