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Westonaria (Gauteng) (ZA)

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

Fair
17°C
Fair
Humidity
94.9%
Wind
1 m/s
Pressure
1018 hPa
Direction
43°
Sunrise
05:00
Sunset
17:00
24h Forecast:
Temp.
15° / 23°
Precip.
4.2mm
Max wind
5.8 m/s

Hourly Forecast

20.03
Now
Weather
17°
20.03
21:00
Weather
17°
20.03
22:00
Weather
16°
20.03
23:00
Weather
16°
21.03
00:00
Weather
16°
21.03
01:00
Weather
16°
21.03
02:00
Weather
16°
21.03
03:00
Weather
15°
21.03
04:00
Weather
16°
21.03
05:00
Weather
16°
21.03
06:00
Weather
17°
21.03
07:00
Weather
19°
0.2
21.03
08:00
Weather
20°
0.3
21.03
09:00
Weather
20°
0.2
21.03
10:00
Weather
22°
0.1
21.03
11:00
Weather
23°
0.6
21.03
12:00
Weather
23°
2
21.03
13:00
Weather
20°
0.2
6
21.03
14:00
Weather
21°
21.03
15:00
Weather
21°
0.6
21.03
16:00
Weather
19°
21.03
17:00
Weather
18°
21.03
18:00
Weather
17°
21.03
19:00
Weather
17°

Temperature

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

Precipitation

2mm
0mm
07:00
0.2mm
08:00
0.3mm
09:00
0.2mm
10:00
0.1mm
11:00
0.6mm
12:00
2mm
13:00
0.2mm
15:00
0.6mm
20:00 07:00 19:00

Wind

5.8m/s
0m/s
20:00
1.4 m/s
21:00
1.5 m/s
22:00
2.8 m/s
23:00
2.6 m/s
00:00
2.7 m/s
01:00
3.3 m/s
02:00
3 m/s
03:00
2.1 m/s
04:00
2.8 m/s
05:00
3.6 m/s
06:00
4.8 m/s
07:00
4.5 m/s
08:00
4.3 m/s
09:00
3.7 m/s
10:00
4.1 m/s
11:00
4.6 m/s
12:00
4.4 m/s
13:00
5.8 m/s
14:00
4.2 m/s
15:00
4.5 m/s
16:00
4.5 m/s
17:00
3.3 m/s
18:00
4.4 m/s
19:00
4.4 m/s
20:00 07:00 19:00

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
74.9 km
40
13.3%

Measurement time: 2026-03-20 19:58

Calculated from PM2.5/PM10

O3
74.9 km
43.78 µg/m3
27.4%

Measurement time: 2026-03-20 19:58

source: OpenWeatherMap

PM2.5
74.9 km
9.69 µg/m3
11.5%

Measurement time: 2026-03-20 19:58

source: OpenWeatherMap

PM10
74.9 km
11.85 µg/m3
8.5%

Measurement time: 2026-03-20 19:58

source: OpenWeatherMap

NO2
74.9 km
7.23 µg/m3
3.6%

Measurement time: 2026-03-20 19:58

source: OpenWeatherMap

CO
74.9 km
0.18823 mg/m3
1.3%

Measurement time: 2026-03-20 19:58

source: OpenWeatherMap

SO2
74.9 km
3.03 µg/m3
0.9%

Measurement time: 2026-03-20 19:58

source: OpenWeatherMap

Info


Region: Gauteng
Latitude: -26.31905
Longitude: 27.6486

Cities in the area:


Solar Energy

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0 W/m²
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About Air Quality in Westonaria

Air quality in Westonaria 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 Westonaria

  • 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 Westonaria?

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 Westonaria

If you're planning outdoor activities in Westonaria, 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.