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Massamá (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
60.4%
Wind
5 m/s
Pressure
1020.6 hPa
Direction
285°
Sunrise
05:00
Sunset
17:00
24h Forecast:
Temp.
11° / 15°
Precip.
23.7mm
Max wind
7.9 m/s

Hourly Forecast

31.01
Now
Weather
15°
5
31.01
14:00
Weather
15°
31.01
15:00
Weather
14°
31.01
16:00
Weather
14°
31.01
17:00
Weather
14°
31.01
18:00
Weather
12°
0.1
31.01
19:00
Weather
11°
0.2
31.01
20:00
Weather
12°
31.01
21:00
Weather
12°
31.01
22:00
Weather
12°
0.1
6
31.01
23:00
Weather
12°
0.7
6
01.02
00:00
Weather
13°
1.9
7
01.02
01:00
Weather
13°
3.9
7
01.02
02:00
Weather
13°
4.8
8
01.02
03:00
Weather
14°
1.8
8
01.02
04:00
Weather
14°
1.7
8
01.02
05:00
Weather
14°
1.8
7
01.02
06:00
Weather
14°
2.8
6
01.02
07:00
Weather
14°
1.7
7
01.02
08:00
Weather
14°
0.9
7
01.02
09:00
Weather
14°
0.1
7
01.02
10:00
Weather
15°
0.4
6
01.02
11:00
Weather
15°
0.3
7
01.02
12:00
Weather
15°
0.5
6

Temperature

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

Precipitation

4.8mm
0mm
18:00
0.1mm
19:00
0.2mm
22:00
0.1mm
23:00
0.7mm
00:00
1.9mm
01:00
3.9mm
02:00
4.8mm
03:00
1.8mm
04:00
1.7mm
05:00
1.8mm
06:00
2.8mm
07:00
1.7mm
08:00
0.9mm
09:00
0.1mm
10:00
0.4mm
11:00
0.3mm
12:00
0.5mm
13:00 00:00 12:00

Wind

7.9m/s
0m/s
13:00
5.1 m/s
14:00
4.7 m/s
15:00
4.2 m/s
16:00
3.8 m/s
17:00
2.6 m/s
18:00
3.7 m/s
19:00
4.3 m/s
20:00
4.6 m/s
21:00
4.9 m/s
22:00
5.6 m/s
23:00
6.4 m/s
00:00
7 m/s
01:00
6.8 m/s
02:00
7.9 m/s
03:00
7.7 m/s
04:00
7.7 m/s
05:00
7.3 m/s
06:00
6.2 m/s
07:00
6.8 m/s
08:00
7.1 m/s
09:00
7.1 m/s
10:00
6.4 m/s
11:00
6.5 m/s
12:00
6 m/s
13:00 00:00 12:00

Radiation

No sensor within 100 km.

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
11.5 km
97
32.3%

Measurement time: 2026-01-31 12:00

Calculated from PM2.5/PM10

PM2.5
11.5 km
34 µg/m3
40.5%

Measurement time: 2026-01-31 12:00

source: Aqicn

O3
52.9 km
32.9 µg/m3
20.6%

Measurement time: 2026-01-31 12:00

source: Aqicn

PM10
11.5 km
24 µg/m3
17.1%

Measurement time: 2026-01-31 12:00

source: Aqicn

NO2
11.5 km
11.9 µg/m3
6%

Measurement time: 2026-01-31 12:00

source: Aqicn

SO2
11.5 km
0.6 µg/m3
0.2%

Measurement time: 2026-01-31 12:00

source: Aqicn

About Air Quality in Massamá

Air quality in Massamá 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 Massamá

  • 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 Massamá?

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 Massamá

If you're planning outdoor activities in Massamá, 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.