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Si Chiang Mai (Nong Khai) (TH)

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 showers
31°C
Rain showers
Humidity
54%
Wind
3 m/s
Pressure
1008.2 hPa
Direction
216°
Sunrise
05:00
Sunset
17:00
24h Forecast:
Temp.
22° / 32°
Precip.
3.2mm
Max wind
4.4 m/s

Hourly Forecast

21.03
Now
Weather
31°
0.7
21.03
10:00
Weather
29°
21.03
11:00
Weather
26°
21.03
12:00
Weather
26°
21.03
13:00
Weather
25°
1.4
21.03
14:00
Weather
25°
21.03
15:00
Weather
25°
21.03
16:00
Weather
24°
21.03
17:00
Weather
24°
0.2
21.03
18:00
Weather
24°
21.03
19:00
Weather
24°
21.03
20:00
Weather
23°
21.03
21:00
Weather
23°
21.03
22:00
Weather
23°
21.03
23:00
Weather
22°
22.03
00:00
Weather
23°
0.4
22.03
01:00
Weather
24°
22.03
02:00
Weather
26°
22.03
03:00
Weather
28°
22.03
04:00
Weather
29°
22.03
05:00
Weather
30°
22.03
06:00
Weather
31°
22.03
07:00
Weather
32°
22.03
08:00
Weather
31°
0.5

Temperature

32°C
22°C
09:00
31°C
10:00
29°C
11:00
26°C
12:00
26°C
13:00
25°C
14:00
25°C
15:00
25°C
16:00
24°C
17:00
24°C
18:00
24°C
19:00
24°C
20:00
23°C
21:00
23°C
22:00
23°C
23:00
22°C
00:00
23°C
01:00
24°C
02:00
26°C
03:00
28°C
04:00
29°C
05:00
30°C
06:00
31°C
07:00
32°C
08:00
31°C
09:00 20:00 08:00

Precipitation

1.4mm
0mm
09:00
0.7mm
13:00
1.4mm
17:00
0.2mm
00:00
0.4mm
08:00
0.5mm
09:00 20:00 08:00

Wind

4.4m/s
0m/s
09:00
3.4 m/s
10:00
2.5 m/s
11:00
4.4 m/s
12:00
2.8 m/s
13:00
2.8 m/s
14:00
2.7 m/s
15:00
2.5 m/s
16:00
2.6 m/s
17:00
2 m/s
18:00
1.5 m/s
19:00
1.1 m/s
20:00
1.1 m/s
21:00
1.1 m/s
22:00
1.2 m/s
23:00
1.1 m/s
00:00
3.2 m/s
01:00
3.1 m/s
02:00
1.8 m/s
03:00
1.9 m/s
04:00
1.8 m/s
05:00
0.9 m/s
06:00
0.7 m/s
07:00
1.2 m/s
08:00
1.9 m/s
09:00 20:00 08:00

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
5.1 km
64
21.3%

Measurement time: 2026-03-21 08:32

Calculated from PM2.5/PM10

O3
5.1 km
112.53 µg/m3
70.3%

Measurement time: 2026-03-21 08:32

source: OpenWeatherMap

PM2.5
5.1 km
18.32 µg/m3
21.8%

Measurement time: 2026-03-21 08:32

source: OpenWeatherMap

PM10
5.1 km
19.03 µg/m3
13.6%

Measurement time: 2026-03-21 08:32

source: OpenWeatherMap

CO
5.1 km
0.42252 mg/m3
3%

Measurement time: 2026-03-21 08:32

source: OpenWeatherMap

NO2
5.1 km
1.06 µg/m3
0.5%

Measurement time: 2026-03-21 08:32

source: OpenWeatherMap

SO2
5.1 km
0.47 µg/m3
0.1%

Measurement time: 2026-03-21 08:32

source: OpenWeatherMap

Info


Country: Thailand
Region: Nong Khai
Latitude: 17.95639
Longitude: 102.58667

Cities in the area:


Solar Energy

Low
145.7 W/m²
Solar Radiation
Solar Calculator
Calculate energy production for Si Chiang Mai

About Air Quality in Si Chiang Mai

Air quality in Si Chiang Mai 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 Si Chiang Mai

  • 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 Si Chiang Mai?

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 Si Chiang Mai

If you're planning outdoor activities in Si Chiang Mai, 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.