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São Tomé (Rio Grande do Norte) (BR)

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

Bezchmurnie
28°C
Bezchmurnie
Humidity
64.2%
Wind
3 m/s
Pressure
1012.9 hPa
Direction
101°
Sunrise
05:00
Sunset
17:00
24h Forecast:
Temp.
23° / 32°
Precip.
0.6mm
Max wind
4.6 m/s

Hourly Forecast

16.03
Now
Weather
28°
16.03
13:00
Weather
30°
16.03
14:00
Weather
31°
16.03
15:00
Weather
31°
16.03
16:00
Weather
32°
16.03
17:00
Weather
32°
16.03
18:00
Weather
32°
16.03
19:00
Weather
32°
16.03
20:00
Weather
30°
16.03
21:00
Weather
28°
16.03
22:00
Weather
26°
0.2
16.03
23:00
Weather
25°
17.03
00:00
Weather
25°
17.03
01:00
Weather
24°
17.03
02:00
Weather
24°
17.03
03:00
Weather
23°
17.03
04:00
Weather
23°
17.03
05:00
Weather
23°
17.03
06:00
Weather
23°
17.03
07:00
Weather
23°
17.03
08:00
Weather
23°
17.03
09:00
Weather
24°
17.03
10:00
Weather
25°
0.1
17.03
11:00
Weather
26°
0.3

Temperature

32°C
23°C
12:00
28°C
13:00
30°C
14:00
31°C
15:00
31°C
16:00
32°C
17:00
32°C
18:00
32°C
19:00
32°C
20:00
30°C
21:00
28°C
22:00
26°C
23:00
25°C
00:00
25°C
01:00
24°C
02:00
24°C
03:00
23°C
04:00
23°C
05:00
23°C
06:00
23°C
07:00
23°C
08:00
23°C
09:00
24°C
10:00
25°C
11:00
26°C
12:00 23:00 11:00

Precipitation

0.3mm
0mm
22:00
0.2mm
10:00
0.1mm
11:00
0.3mm
12:00 23:00 11:00

Wind

4.6m/s
0m/s
12:00
3.2 m/s
13:00
3.5 m/s
14:00
3.9 m/s
15:00
3.8 m/s
16:00
3.7 m/s
17:00
3.5 m/s
18:00
4.1 m/s
19:00
4.5 m/s
20:00
4.6 m/s
21:00
4.3 m/s
22:00
3.8 m/s
23:00
3.3 m/s
00:00
2.6 m/s
01:00
2.2 m/s
02:00
1.7 m/s
03:00
1.9 m/s
04:00
2.1 m/s
05:00
2.1 m/s
06:00
2.3 m/s
07:00
2.7 m/s
08:00
3.2 m/s
09:00
3.8 m/s
10:00
4.3 m/s
11:00
4.3 m/s
12:00 23:00 11:00

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
31.5 km
7
2.3%

Measurement time: 2026-03-16 11:29

Calculated from PM2.5/PM10

O3
31.5 km
19.29 µg/m3
12.1%

Measurement time: 2026-03-16 11:29

source: OpenWeatherMap

PM10
31.5 km
3.55 µg/m3
2.5%

Measurement time: 2026-03-16 11:29

source: OpenWeatherMap

PM2.5
31.5 km
1.68 µg/m3
2%

Measurement time: 2026-03-16 11:29

source: OpenWeatherMap

NO2
31.5 km
2.03 µg/m3
1%

Measurement time: 2026-03-16 11:29

source: OpenWeatherMap

CO
31.5 km
0.12493 mg/m3
0.9%

Measurement time: 2026-03-16 11:29

source: OpenWeatherMap

SO2
31.5 km
0.42 µg/m3
0.1%

Measurement time: 2026-03-16 11:29

source: OpenWeatherMap

Info


Country: Brazil
Latitude: -5.9725
Longitude: -36.07528


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919 W/m²
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About Air Quality in São Tomé

Air quality in São Tomé 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 Tomé

  • 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 Tomé?

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 Tomé

If you're planning outdoor activities in São Tomé, 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.