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Piran (Piran-Pirano) (SI)

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
9°C
Rain
Humidity
96.4%
Wind
3 m/s
Pressure
1004.1 hPa
Direction
120°
Sunrise
05:00
Sunset
17:00
24h Forecast:
Temp.
9° / 10°
Precip.
30mm
Max wind
11.3 m/s

Hourly Forecast

04.02
Now
Weather
0.5
04.02
04:00
Weather
0.7
04.02
05:00
Weather
0.6
04.02
06:00
Weather
0.3
04.02
07:00
Weather
0.6
04.02
08:00
Weather
0.7
04.02
09:00
Weather
0.4
04.02
10:00
Weather
10°
1.6
04.02
11:00
Weather
10°
1.7
04.02
12:00
Weather
10°
2.9
7
04.02
13:00
Weather
10°
2.8
7
04.02
14:00
Weather
10°
2.1
8
04.02
15:00
Weather
10°
3.9
7
04.02
16:00
Weather
10°
2.1
7
04.02
17:00
Weather
10°
1.7
7
04.02
18:00
Weather
1.7
9
04.02
19:00
Weather
2.9
9
04.02
20:00
Weather
1.3
9
04.02
21:00
Weather
0.5
9
04.02
22:00
Weather
1
10
04.02
23:00
Weather
11
05.02
00:00
Weather
10°
11
05.02
01:00
Weather
10°
10
05.02
02:00
Weather
10°
10

Temperature

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

Precipitation

3.9mm
0mm
03:00
0.5mm
04:00
0.7mm
05:00
0.6mm
06:00
0.3mm
07:00
0.6mm
08:00
0.7mm
09:00
0.4mm
10:00
1.6mm
11:00
1.7mm
12:00
2.9mm
13:00
2.8mm
14:00
2.1mm
15:00
3.9mm
16:00
2.1mm
17:00
1.7mm
18:00
1.7mm
19:00
2.9mm
20:00
1.3mm
21:00
0.5mm
22:00
1mm
03:00 14:00 02:00

Wind

11.3m/s
0m/s
03:00
3.3 m/s
04:00
3.3 m/s
05:00
3.2 m/s
06:00
3.5 m/s
07:00
3.6 m/s
08:00
3.3 m/s
09:00
3.9 m/s
10:00
4.7 m/s
11:00
4.7 m/s
12:00
6.5 m/s
13:00
7.2 m/s
14:00
8 m/s
15:00
7.4 m/s
16:00
7.2 m/s
17:00
7.2 m/s
18:00
9.1 m/s
19:00
9.1 m/s
20:00
9.4 m/s
21:00
9.1 m/s
22:00
10 m/s
23:00
11.3 m/s
00:00
11.2 m/s
01:00
10.2 m/s
02:00
10.1 m/s
03:00 14:00 02:00

Radiation

0.063 uSv
6.6 km
7.9%

Measurement time: 2026-02-04 02:00

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
91.3 km
144
48%

Measurement time: 2026-02-04 04:00

Calculated from PM2.5/PM10

PM2.5
91.3 km
53 µg/m3
63.1%

Measurement time: 2026-02-04 04:00

source: Aqicn

O3
53.7 km
32.87 µg/m3
20.5%

Measurement time: 2026-02-04 03:43

source: OpenWeatherMap

PM10
53.7 km
24.84 µg/m3
17.7%

Measurement time: 2026-02-04 03:43

source: OpenWeatherMap

NO2
53.7 km
20.13 µg/m3
10.1%

Measurement time: 2026-02-04 03:43

source: OpenWeatherMap

CO
53.7 km
0.5888 mg/m3
4.2%

Measurement time: 2026-02-04 03:43

source: OpenWeatherMap

SO2
53.7 km
1.09 µg/m3
0.3%

Measurement time: 2026-02-04 03:43

source: OpenWeatherMap

Info


Country: Slovenia
Latitude: 45.52778
Longitude: 13.57056


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About Air Quality in Piran

Air quality in Piran 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 Piran

  • 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 Piran?

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 Piran

If you're planning outdoor activities in Piran, 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.