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Cachoeiras de Macacu (Rio de Janeiro) (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

Heavy rain
26°C
Heavy rain
Humidity
80.9%
Wind
2 m/s
Pressure
1017.2 hPa
Direction
151°
Sunrise
05:00
Sunset
17:00
24h Forecast:
Temp.
21° / 26°
Precip.
27.9mm
Max wind
3.7 m/s

Hourly Forecast

10.03
Now
Weather
26°
2.5
10.03
16:00
Weather
24°
8.1
10.03
17:00
Weather
24°
1.6
10.03
18:00
Weather
23°
4.2
10.03
19:00
Weather
23°
0.7
10.03
20:00
Weather
22°
0.1
10.03
21:00
Weather
22°
0.2
10.03
22:00
Weather
22°
0.3
10.03
23:00
Weather
21°
0.2
11.03
00:00
Weather
21°
0.2
11.03
01:00
Weather
21°
0.2
11.03
02:00
Weather
21°
0.2
11.03
03:00
Weather
21°
0.2
11.03
04:00
Weather
21°
0.2
11.03
05:00
Weather
21°
0.2
11.03
06:00
Weather
21°
0.4
11.03
07:00
Weather
21°
0.4
11.03
08:00
Weather
21°
0.2
11.03
09:00
Weather
21°
0.2
11.03
10:00
Weather
21°
0.2
11.03
11:00
Weather
21°
0.4
11.03
12:00
Weather
22°
0.6
11.03
13:00
Weather
23°
4.7
11.03
14:00
Weather
24°
1.7

Temperature

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

Precipitation

8.1mm
0mm
15:00
2.5mm
16:00
8.1mm
17:00
1.6mm
18:00
4.2mm
19:00
0.7mm
20:00
0.1mm
21:00
0.2mm
22:00
0.3mm
23:00
0.2mm
00:00
0.2mm
01:00
0.2mm
02:00
0.2mm
03:00
0.2mm
04:00
0.2mm
05:00
0.2mm
06:00
0.4mm
07:00
0.4mm
08:00
0.2mm
09:00
0.2mm
10:00
0.2mm
11:00
0.4mm
12:00
0.6mm
13:00
4.7mm
14:00
1.7mm
15:00 02:00 14:00

Wind

3.7m/s
0m/s
15:00
2.3 m/s
16:00
2.9 m/s
17:00
2.3 m/s
18:00
2.2 m/s
19:00
3.1 m/s
20:00
3.7 m/s
21:00
3.1 m/s
22:00
2.8 m/s
23:00
2.6 m/s
00:00
2.5 m/s
01:00
2.4 m/s
02:00
2.2 m/s
03:00
2 m/s
04:00
2.4 m/s
05:00
2.5 m/s
06:00
2.7 m/s
07:00
2.8 m/s
08:00
2.6 m/s
09:00
2.8 m/s
10:00
2.8 m/s
11:00
2.5 m/s
12:00
2.4 m/s
13:00
2.1 m/s
14:00
2.2 m/s
15:00 02:00 14:00

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
76.3 km
5
1.7%

Measurement time: 2026-03-10 13:50

Calculated from PM2.5/PM10

O3
76.3 km
47.36 µg/m3
29.6%

Measurement time: 2026-03-10 13:50

source: OpenWeatherMap

PM10
76.3 km
4.66 µg/m3
3.3%

Measurement time: 2026-03-10 13:50

source: OpenWeatherMap

PM2.5
76.3 km
1.41 µg/m3
1.7%

Measurement time: 2026-03-10 13:50

source: OpenWeatherMap

CO
76.3 km
0.05962 mg/m3
0.4%

Measurement time: 2026-03-10 13:50

source: OpenWeatherMap

NO2
76.3 km
0.08 µg/m3
0%

Measurement time: 2026-03-10 13:50

source: OpenWeatherMap

SO2
76.3 km
0.05 µg/m3
0%

Measurement time: 2026-03-10 13:50

source: OpenWeatherMap

Info


Country: Brazil
Latitude: -22.4625
Longitude: -42.65306


Solar Energy

Moderate
452.9 W/m²
Solar Radiation
Solar Calculator
Calculate energy production for Cachoeiras de Macacu

About Air Quality in Cachoeiras de Macacu

Air quality in Cachoeiras de Macacu 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 Cachoeiras de Macacu

  • 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 Cachoeiras de Macacu?

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 Cachoeiras de Macacu

If you're planning outdoor activities in Cachoeiras de Macacu, 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.