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Cristuru Secuiesc (Harghita) (RO)

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
14°C
Cloudy
Humidity
49.4%
Wind
2 m/s
Pressure
1010 hPa
Direction
237°
Sunrise
04:00
Sunset
16:00
24h Forecast:
Temp.
4° / 16°
Precip.
6.4mm
Max wind
6.7 m/s

Hourly Forecast

20.04
Now
Weather
14°
20.04
09:00
Weather
16°
20.04
10:00
Weather
16°
6
20.04
11:00
Weather
14°
0.3
6
20.04
12:00
Weather
14°
0.5
7
20.04
13:00
Weather
11°
0.8
6
20.04
14:00
Weather
20.04
15:00
Weather
10°
0.4
20.04
16:00
Weather
10°
1.1
20.04
17:00
Weather
20.04
18:00
Weather
0.2
20.04
19:00
Weather
20.04
20:00
Weather
0.4
20.04
21:00
Weather
0.7
20.04
22:00
Weather
0.2
20.04
23:00
Weather
1.1
21.04
00:00
Weather
0.7
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

Temperature

16°C
4°C
08:00
14°C
09:00
16°C
10:00
16°C
11:00
14°C
12:00
14°C
13:00
11°C
14:00
9°C
15:00
10°C
16:00
10°C
17:00
8°C
18:00
8°C
19:00
7°C
20:00
7°C
21:00
6°C
22:00
5°C
23:00
5°C
00:00
5°C
01:00
5°C
02:00
5°C
03:00
4°C
04:00
5°C
05:00
6°C
06:00
7°C
07:00
8°C
08:00 19:00 07:00

Precipitation

1.1mm
0mm
11:00
0.3mm
12:00
0.5mm
13:00
0.8mm
15:00
0.4mm
16:00
1.1mm
18:00
0.2mm
20:00
0.4mm
21:00
0.7mm
22:00
0.2mm
23:00
1.1mm
00:00
0.7mm
08:00 19:00 07:00

Wind

6.7m/s
0m/s
08:00
2.3 m/s
09:00
4.3 m/s
10:00
6.1 m/s
11:00
5.9 m/s
12:00
6.7 m/s
13:00
5.5 m/s
14:00
4.7 m/s
15:00
2.3 m/s
16:00
2.8 m/s
17:00
3 m/s
18:00
2.4 m/s
19:00
2 m/s
20:00
2.3 m/s
21:00
1.9 m/s
22:00
1.8 m/s
23:00
1.7 m/s
00:00
1.8 m/s
01:00
1.9 m/s
02:00
1.7 m/s
03:00
1.5 m/s
04:00
1.4 m/s
05:00
1.6 m/s
06:00
2.4 m/s
07:00
1.9 m/s
08:00 19:00 07:00

Radiation

0.121 uSv
44.2 km
15.1%

Measurement time: 2026-04-20 04:00

source: remap_europe

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
47.2 km
27
9%

Measurement time: 2026-04-20 09:00

Calculated from PM2.5/PM10

O3
48.4 km
74.15 µg/m3
46.3%

Measurement time: 2026-04-20 10:34

source: OpenWeatherMap

PM10
47.2 km
30 µg/m3
21.4%

Measurement time: 2026-04-20 09:00

source: Aqicn

NO2
87.6 km
24 µg/m3
12%

Measurement time: 2026-04-20 08:00

source: Aqicn

PM2.5
48.4 km
5.28 µg/m3
6.3%

Measurement time: 2026-04-20 10:34

source: OpenWeatherMap

SO2
87.6 km
5 µg/m3
1.4%

Measurement time: 2026-04-20 08:00

source: Aqicn

CO
91.4 km
0.1459 mg/m3
1%

Measurement time: 2026-04-20 09:13

source: OpenWeatherMap

Info


Country: Romania
Region: Harghita
Latitude: 46.28333
Longitude: 25.03333


Solar Energy

Moderate
410 W/m²
Solar Radiation
Solar Calculator
Calculate energy production for Cristuru Secuiesc

About Air Quality in Cristuru Secuiesc

Air quality in Cristuru Secuiesc 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 Cristuru Secuiesc

  • 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 Cristuru Secuiesc?

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 Cristuru Secuiesc

If you're planning outdoor activities in Cristuru Secuiesc, 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.