Smog in Ljubljana — Live Data: AQI, Fine Dust, Wind, UV and Health Advice

The latest data Last 7 days Quality of life
Latest air quality data: Ljubljana
Locations: Ljubljana
Pollution and air quality forecast for Ljubljana. Today is Thursday, August 27, 2026. The following air pollution values have been recorded for Ljubljana:
  1. particulate matter (PM2.5) dust - 12 (Good)
  2. particulate matter (PM10) suspended dust - 16 (Good)
  3. ozone (O3) - 39 (Good)
  4. nitrogen dioxide (NO2) - 13 (Good)
  5. sulfur dioxide (SO2) - 1 (Good)
  6. carbon monoxide (CO) - 184 (Good)
Real-time Air Quality Index (AQI) for Ljubljana, Thursday, August 27, 2026: 1.

air quality index: 0
AQI 1 Good

What is the air quality in Ljubljana today? Is the air polluted in Ljubljana?. Is there smog?

Today (Thursday, August 27, 2026) air quality is good. The air quality has no effect on health. Everyone can continue their outdoor activities normally in Ljubljana.


What is the current level of PM2.5 in Ljubljana? (particulate matter (PM2.5) dust)
Today's PM2.5 level is: 12 (Good) For comparison, the highest level of PM2.5 in Ljubljana in the last 7 days was: 12 (Wednesday, August 26, 2026) and the lowest: 5 (Sunday, August 23, 2026).

What is the level of PM10 today in Ljubljana? (particulate matter (PM10) suspended dust)
The current level of particulate matter PM10 in Ljubljana is: 16 (Good) The highest PM10 values usually occur in month: 47 (January 2020). The lowest value of particulate matter PM10 pollution in Ljubljana is usually recorded in: May (13).

How is the O3 level today in Ljubljana? (ozone (O3))
39 (Good)

How high is the level of NO2? (nitrogen dioxide (NO2))
13 (Good)

What is the level of SO2 pollution? (sulfur dioxide (SO2))
1 (Good)

How high is the CO level? (carbon monoxide (CO))
184 (Good)



Current data Thursday, August 27, 2026 at 3:00 AM

PM2,5 12 (Good)

PM10 16 (Good)

O3 39 (Good)

NO2 13 (Good)

SO2 1 (Good)

CO 184 (Good)

Data on air pollution from recent days in Ljubljana

index 2026-08-27 2026-08-26 2026-08-25 2026-08-24 2026-08-23 2026-08-22 2026-08-21 2026-08-20
pm25 11
Good		 12
Good		 12
Good		 8
Good		 5
Good		 5
Good		 7
Good		 9
Good
pm10 17
Good		 15
Good		 16
Good		 12
Good		 7
Good		 6
Good		 8
Good		 13
Good
o3 69
Good		 64
Good		 63
Good		 64
Good		 57
Good		 59
Good		 69
Good		 79
Moderate
no2 8
Good		 12
Good		 11
Good		 6
Good		 4
Good		 5
Good		 7
Good		 6
Good
so2 1
Good		 1
Good		 2
Good		 2
Good		 0
Good		 0
Good		 0
Good		 0
Good
co 167
Good		 171
Good		 167
Good		 159
Good		 154
Good		 149
Good		 149
Good		 159
Good
data source »

Air pollution in Ljubljana from August 2017 to May 2020

index 2020-05 2020-04 2020-03 2020-02 2020-01 2019-12 2019-11 2019-10 2019-09 2019-08 2019-07 2019-06 2019-05 2019-04 2019-03 2019-02 2019-01 2018-12 2018-11 2018-10 2018-09 2018-08 2018-07 2018-06 2018-05 2018-04 2018-03 2018-02 2018-01 2017-12 2017-11 2017-10 2017-09 2017-08
pm10 13 (Good) 22 (Moderate) 33 (Moderate) 23 (Moderate) 47 (Moderate) 31 (Moderate) 20 (Moderate) 25 (Moderate) 15 (Good) 22 (Moderate) 20 (Good) 26 (Moderate) 13 (Good) 24 (Moderate) 25 (Moderate) 39 (Moderate) 33 (Moderate) 44 (Moderate) 23 (Moderate) 36 (Moderate) 19 (Good) 22 (Moderate) 21 (Moderate) 19 (Good) 20 (Good) 21 (Moderate) 31 (Moderate) 30 (Moderate) 27 (Moderate) 33 (Moderate) 28 (Moderate) 32 (Moderate) 15 (Good) 22 (Moderate)
data source »

Quality of life in Ljubljana

Green and Parks in the City

Ljubljana 89%

Croatia: 73% Austria: 78% San Marino: 75% Bosnia and Herzegovina: 54% Hungary: 59%

particulate matter PM2.5

Ljubljana 23 (Moderate)

Pleasure of spending time in the city

Ljubljana 88%

Croatia: 81% Austria: 84% San Marino: 100% Bosnia and Herzegovina: 53% Hungary: 65%

particulate matter PM10

Ljubljana 26 (Moderate)

Air Pollution

Ljubljana 27%

Croatia: 29% Austria: 21% San Marino: 6.8% Bosnia and Herzegovina: 62% Hungary: 49%

Garbage Disposal

Ljubljana 91%

Croatia: 58% Austria: 84% Bosnia and Herzegovina: 49% Hungary: 65%

Availability and quality of drinking water

Ljubljana 96%

Croatia: 86% Austria: 91% San Marino: 100% Bosnia and Herzegovina: 71% Hungary: 80%

Cleanliness and tidiness

Ljubljana 90%

Croatia: 68% Austria: 82% San Marino: 75% Bosnia and Herzegovina: 50% Hungary: 52%

Noise and Light pollution

Ljubljana 39%

Croatia: 34% Austria: 34% San Marino: 75% Bosnia and Herzegovina: 38% Hungary: 45%

Water Pollution

Ljubljana 18%

Croatia: 25% Austria: 14% San Marino: 0% Bosnia and Herzegovina: 45% Hungary: 30%
Source: Numbeo


Ljubljana

Thursday, August 27, 2026 at 3:00 AM

PM2,5 12 (Good)

particulate matter (PM2.5) dust

PM10 16 (Good)

particulate matter (PM10) suspended dust

O3 39 (Good)

ozone (O3)

NO2 13 (Good)

nitrogen dioxide (NO2)

SO2 0.6 (Good)

sulfur dioxide (SO2)

CO 184 (Good)

carbon monoxide (CO)

Ljubljana

index 2026-08-20 2026-08-21 2026-08-22 2026-08-23 2026-08-24 2026-08-25 2026-08-26 2026-08-27
pm25 9.2 6.5 5 5.2 8.3 12 12 11
pm10 13 8 6.2 7.1 12 16 15 17
o3 79 69 59 57 64 63 64 69
no2 5.7 6.8 4.9 4.3 6.3 11 12 8.5
so2 0.44 0.35 0.33 0.41 1.5 1.6 0.84 0.7
co 159 149 149 154 159 167 171 167

Ljubljana Bežigrad

index 2020-05 2020-04 2020-03 2020-02 2020-01 2019-12 2019-11 2019-10 2019-09 2019-08 2019-07 2019-06 2019-05 2019-04 2019-03 2019-02 2019-01 2018-12 2018-11 2018-10 2018-09 2018-08 2018-07 2018-06 2018-05 2018-04 2018-03 2018-02 2018-01 2017-12 2017-11 2017-10 2017-09 2017-08
pm10 13 22 33 23 47 31 20 25 15 22 20 26 13 24 25 39 33 44 23 36 19 22 21 19 20 21 31 30 27 33 28 32 15 22

* Pollution data source: https://openaq.org (Slovenian Environment Agency) The data is licensed under CC-By 4.0

🌦️ Weather · 16-day Forecast — Ljubljana

🌦️ WEATHER · 16-DAY FORECASTLjubljana☀️28°Clear skyToday · ↑29° ↓13°💨 2 km/h · 💧 40%Mon24.08☀️29°13°Tue25.08🌧️26°15°Wed26.08🌤️34°17°Thu27.08☁️36°19°Fri28.08☀️35°17°Sat29.08🌧️25°18°Sun30.08☀️28°15°Mon31.08☀️30°16°Tue1.09☀️28°17°Wed2.09🌧️26°15°Thu3.09☁️26°13°Fri4.09☀️28°14°Sat5.09☀️30°15°Sun6.09🌧️32°16°Mon7.09🌧️22°13°Tue8.09☀️26°10°pollution-alert.com · August 27, 2026

16-day weather forecast for Ljubljana: today around 29°C (clear sky), lows near 13°C. Daily temperature and conditions, updated every day. A moderate breeze (about 8 km/h) is partially dispersing pollutants today.

☀️ UV Index · 16-day Forecast — Ljubljana

☀️ UV INDEX · 16-DAY FORECASTLjubljana03681111+6.1UV HIGHtoday, day maxSPF 30-50, hat and sunglasses are a must. Better tostay in the shade 11:00-15:00.⏱ Unprotected fair skin can burn in about 35 min6Wed26.086Thu27.086Fri28.086Sat29.086Sun30.086Mon31.086Tue1.094Wed2.096Thu3.096Fri4.096Sat5.094Sun6.096Mon7.096Tue8.096Wed9.096Thu10.090-2 low3-5 moderate6-7 high8-10 very high11+ extremepollution-alert.com · August 27, 2026

The UV index in Ljubljana today is 6.1 (high) — unprotected fair skin can burn in about 35 minutes.

Frequently asked questions

Is the air safe to breathe in Ljubljana today?
The current average PM2.5 across Ljubljana is about 12 µg/m³, rated “Good”. Air quality is good — outdoor activities are fine for everyone.
What is the current PM2.5 level in Ljubljana?
Right now PM2.5 in Ljubljana averages about 12 µg/m³ (“Good”). PM2.5 are fine particles small enough to reach the lungs and bloodstream.
Which day last week had the worst air in Ljubljana?
Over the past week, the highest daily PM2.5 in Ljubljana was recorded on Wednesday, August 26 (about 12 µg/m³).
What is the UV index in Ljubljana today?
The UV index in Ljubljana today is 6.1 (high) — unprotected fair skin can burn in about 35 minutes.
Does today's wind help disperse smog in Ljubljana?
A moderate breeze (about 8 km/h) is partially dispersing pollutants today.
How is air quality measured?
Air quality here is based on PM2.5 — the concentration of fine particulate matter in µg/m³. Lower values mean cleaner air. Data is updated daily from Open-Meteo.