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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

Rain
23°C
Rain
Humidity
98.7%
Wind
1 m/s
Pressure
1012 hPa
Direction
38°
Sunrise
05:00
Sunset
17:00
24h Forecast:
Temp.
22° / 27°
Precip.
20mm
Max wind
2.1 m/s

Hourly Forecast

05.02
Now
Weather
23°
0.7
05.02
01:00
Weather
23°
0.1
05.02
02:00
Weather
23°
05.02
03:00
Weather
23°
05.02
04:00
Weather
23°
05.02
05:00
Weather
22°
05.02
06:00
Weather
22°
05.02
07:00
Weather
22°
05.02
08:00
Weather
22°
05.02
09:00
Weather
23°
05.02
10:00
Weather
24°
05.02
11:00
Weather
25°
05.02
12:00
Weather
26°
0.4
05.02
13:00
Weather
27°
1.4
05.02
14:00
Weather
27°
3.3
05.02
15:00
Weather
25°
8.3
05.02
16:00
Weather
24°
1.1
05.02
17:00
Weather
24°
0.7
05.02
18:00
Weather
24°
0.5
05.02
19:00
Weather
24°
0.7
05.02
20:00
Weather
24°
0.7
05.02
21:00
Weather
23°
0.7
05.02
22:00
Weather
23°
0.9
05.02
23:00
Weather
23°
0.5

Temperature

27°C
22°C
00:00
23°C
01:00
23°C
02:00
23°C
03:00
23°C
04:00
23°C
05:00
22°C
06:00
22°C
07:00
22°C
08:00
22°C
09:00
23°C
10:00
24°C
11:00
25°C
12:00
26°C
13:00
27°C
14:00
27°C
15:00
25°C
16:00
24°C
17:00
24°C
18:00
24°C
19:00
24°C
20:00
24°C
21:00
23°C
22:00
23°C
23:00
23°C
00:00 11:00 23:00

Precipitation

8.3mm
0mm
00:00
0.7mm
01:00
0.1mm
12:00
0.4mm
13:00
1.4mm
14:00
3.3mm
15:00
8.3mm
16:00
1.1mm
17:00
0.7mm
18:00
0.5mm
19:00
0.7mm
20:00
0.7mm
21:00
0.7mm
22:00
0.9mm
23:00
0.5mm
00:00 11:00 23:00

Wind

2.1m/s
0m/s
00:00
0.9 m/s
01:00
1.7 m/s
02:00
1.2 m/s
03:00
1.6 m/s
04:00
1.4 m/s
05:00
1.2 m/s
06:00
0.9 m/s
07:00
1.3 m/s
08:00
1.6 m/s
09:00
1.6 m/s
10:00
1.5 m/s
11:00
1.4 m/s
12:00
1.2 m/s
13:00
1.5 m/s
14:00
1.9 m/s
15:00
2.1 m/s
16:00
1.9 m/s
17:00
1.5 m/s
18:00
1.9 m/s
19:00
1.5 m/s
20:00
1.6 m/s
21:00
0.7 m/s
22:00
0.9 m/s
23:00
0.8 m/s
00:00 11:00 23:00

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
35.9 km
93
31%

Measurement time: 2026-02-04 22:52

Calculated from PM2.5/PM10

O3
35.9 km
116.85 µg/m3
73%

Measurement time: 2026-02-04 22:52

source: OpenWeatherMap

PM2.5
35.9 km
32.42 µg/m3
38.6%

Measurement time: 2026-02-04 22:52

source: OpenWeatherMap

PM10
35.9 km
36.46 µg/m3
26%

Measurement time: 2026-02-04 22:52

source: OpenWeatherMap

CO
35.9 km
0.29189 mg/m3
2.1%

Measurement time: 2026-02-04 22:52

source: OpenWeatherMap

NO2
35.9 km
1.86 µg/m3
0.9%

Measurement time: 2026-02-04 22:52

source: OpenWeatherMap

SO2
35.9 km
0.85 µg/m3
0.2%

Measurement time: 2026-02-04 22:52

source: OpenWeatherMap

Info


Country: Brazil
Latitude: -22.4625
Longitude: -42.65306

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.