Is time to run? ⚠️☢️☣️

Žatec (Ústecký) (CZ)

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

Cloudy
9°C
Cloudy
Humidity
63.1%
Wind
6 m/s
Pressure
1015.7 hPa
Direction
270°
Sunrise
04:00
Sunset
16:00
24h Forecast:
Temp.
5° / 10°
Precip.
1.7mm
Max wind
6.1 m/s

Hourly Forecast

20.04
Now
Weather
6
20.04
11:00
Weather
10°
0.2
6
20.04
12:00
Weather
0.4
6
20.04
13:00
Weather
0.6
5
20.04
14:00
Weather
0.2
20.04
15:00
Weather
20.04
16:00
Weather
20.04
17:00
Weather
20.04
18:00
Weather
20.04
19:00
Weather
0.2
20.04
20:00
Weather
20.04
21:00
Weather
20.04
22:00
Weather
20.04
23:00
Weather
21.04
00:00
Weather
21.04
01:00
Weather
21.04
02:00
Weather
21.04
03:00
Weather
21.04
04:00
Weather
21.04
05:00
Weather
21.04
06:00
Weather
21.04
07:00
Weather
21.04
08:00
Weather
0.1
21.04
09:00
Weather
10°

Temperature

10°C
5°C
10:00
9°C
11:00
10°C
12:00
9°C
13:00
8°C
14:00
8°C
15:00
7°C
16:00
7°C
17:00
7°C
18:00
6°C
19:00
6°C
20:00
6°C
21:00
6°C
22:00
6°C
23:00
6°C
00:00
6°C
01:00
6°C
02:00
6°C
03:00
6°C
04:00
6°C
05:00
5°C
06:00
6°C
07:00
8°C
08:00
9°C
09:00
10°C
10:00 21:00 09:00

Precipitation

0.6mm
0mm
11:00
0.2mm
12:00
0.4mm
13:00
0.6mm
14:00
0.2mm
19:00
0.2mm
08:00
0.1mm
10:00 21:00 09:00

Wind

6.1m/s
0m/s
10:00
5.5 m/s
11:00
6.1 m/s
12:00
5.6 m/s
13:00
5.3 m/s
14:00
4.9 m/s
15:00
4 m/s
16:00
3.9 m/s
17:00
3.2 m/s
18:00
3.3 m/s
19:00
3 m/s
20:00
2.6 m/s
21:00
2.5 m/s
22:00
2.3 m/s
23:00
2.3 m/s
00:00
2.4 m/s
01:00
2.4 m/s
02:00
3 m/s
03:00
4.1 m/s
04:00
4.6 m/s
05:00
4.2 m/s
06:00
4.3 m/s
07:00
3.8 m/s
08:00
3.8 m/s
09:00
4.3 m/s
10:00 21:00 09:00

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
68.8 km
97
32.3%

Measurement time: 2026-04-20 11:00

Calculated from PM2.5/PM10

O3
60.9 km
80.75 µg/m3
50.5%

Measurement time: 2026-04-20 12:22

source: OpenWeatherMap

PM2.5
68.8 km
34 µg/m3
40.5%

Measurement time: 2026-04-20 11:00

source: Aqicn

PM10
68.8 km
14 µg/m3
10%

Measurement time: 2026-04-20 11:00

source: Aqicn

NO2
68.8 km
7 µg/m3
3.5%

Measurement time: 2026-04-20 11:00

source: Aqicn

CO
60.9 km
0.12993 mg/m3
0.9%

Measurement time: 2026-04-20 12:22

source: OpenWeatherMap

SO2
63.2 km
1.7 µg/m3
0.5%

Measurement time: 2026-04-20 11:00

source: Aqicn

Info


Country: Czechia
Region: Ústecký
Latitude: 50.32717
Longitude: 13.54577


Solar Energy

Moderate
362.3 W/m²
Solar Radiation
Solar Calculator
Calculate energy production for Žatec

About Air Quality in Žatec

Air quality in Žatec 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 Žatec

  • 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 Žatec?

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 Žatec

If you're planning outdoor activities in Žatec, 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.