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Chaah (Johor) (MY)

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

Partly cloudy
31°C
Partly cloudy
Humidity
58%
Wind
2 m/s
Pressure
1012.7 hPa
Direction
354°
Sunrise
05:00
Sunset
17:00
24h Forecast:
Temp.
23° / 34°
Precip.
0.6mm
Max wind
3 m/s

Hourly Forecast

20.03
Now
Weather
31°
20.03
05:00
Weather
33°
20.03
06:00
Weather
33°
20.03
07:00
Weather
34°
20.03
08:00
Weather
34°
0.2
20.03
09:00
Weather
31°
0.4
20.03
10:00
Weather
28°
20.03
11:00
Weather
27°
20.03
12:00
Weather
26°
20.03
13:00
Weather
25°
20.03
14:00
Weather
25°
20.03
15:00
Weather
25°
20.03
16:00
Weather
25°
20.03
17:00
Weather
24°
20.03
18:00
Weather
24°
20.03
19:00
Weather
23°
20.03
20:00
Weather
23°
20.03
21:00
Weather
23°
20.03
22:00
Weather
23°
20.03
23:00
Weather
23°
21.03
00:00
Weather
24°
21.03
01:00
Weather
26°
21.03
02:00
Weather
28°
21.03
03:00
Weather
30°

Temperature

34°C
23°C
04:00
31°C
05:00
33°C
06:00
33°C
07:00
34°C
08:00
34°C
09:00
31°C
10:00
28°C
11:00
27°C
12:00
26°C
13:00
25°C
14:00
25°C
15:00
25°C
16:00
25°C
17:00
24°C
18:00
24°C
19:00
23°C
20:00
23°C
21:00
23°C
22:00
23°C
23:00
23°C
00:00
24°C
01:00
26°C
02:00
28°C
03:00
30°C
04:00 15:00 03:00

Precipitation

0.4mm
0mm
08:00
0.2mm
09:00
0.4mm
04:00 15:00 03:00

Wind

3m/s
0m/s
04:00
1.9 m/s
05:00
2.1 m/s
06:00
2 m/s
07:00
1.7 m/s
08:00
1.9 m/s
09:00
2.7 m/s
10:00
1.8 m/s
11:00
1.1 m/s
12:00
1.1 m/s
13:00
2.1 m/s
14:00
1.9 m/s
15:00
1.9 m/s
16:00
2.7 m/s
17:00
2.6 m/s
18:00
2.5 m/s
19:00
2.6 m/s
20:00
2.1 m/s
21:00
2.5 m/s
22:00
2.6 m/s
23:00
2.3 m/s
00:00
2.5 m/s
01:00
2.4 m/s
02:00
3 m/s
03:00
3 m/s
04:00 15:00 03:00

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
92 km
41
13.7%

Measurement time: 2026-03-20 04:33

Calculated from PM2.5/PM10

O3
92 km
48.55 µg/m3
30.3%

Measurement time: 2026-03-20 04:33

source: OpenWeatherMap

PM2.5
92 km
9.97 µg/m3
11.9%

Measurement time: 2026-03-20 04:33

source: OpenWeatherMap

PM10
92 km
12.57 µg/m3
9%

Measurement time: 2026-03-20 04:33

source: OpenWeatherMap

CO
92 km
0.16947 mg/m3
1.2%

Measurement time: 2026-03-20 04:33

source: OpenWeatherMap

NO2
92 km
0.62 µg/m3
0.3%

Measurement time: 2026-03-20 04:33

source: OpenWeatherMap

SO2
92 km
0.47 µg/m3
0.1%

Measurement time: 2026-03-20 04:33

source: OpenWeatherMap

Info


Country: Malaysia
Region: Johor
Latitude: 2.249
Longitude: 103.048


Solar Energy

Moderate
504.5 W/m²
Solar Radiation
Solar Calculator
Calculate energy production for Chaah

About Air Quality in Chaah

Air quality in Chaah 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 Chaah

  • 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 Chaah?

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 Chaah

If you're planning outdoor activities in Chaah, 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.