Trieste: Air Pollution Today — AQI Index, PM2.5/PM10, Smog Alerts and Forecast

Pollution and air quality forecast for Trieste. Today is Thursday, August 27, 2026. The following air pollution values have been recorded for Trieste:

1. particulate matter (PM2.5) dust - 10 (Good)
2. particulate matter (PM10) suspended dust - 12 (Good)
3. ozone (O3) - 50 (Good)
4. nitrogen dioxide (NO2) - 16 (Good)
5. sulfur dioxide (SO2) - 1 (Good)
6. carbon monoxide (CO) - 160 (Good)

Real-time Air Quality Index (AQI) for Trieste, Thursday, August 27, 2026: 1.

What is the current level of PM2.5 in Trieste? (particulate matter (PM2.5) dust)
Today's PM2.5 level is: 10 (Good) For comparison, the highest level of PM2.5 in Trieste in the last 7 days was: 9 (Thursday, August 27, 2026) and the lowest: 3 (Saturday, August 22, 2026).

What is the level of PM10 today in Trieste? (particulate matter (PM10) suspended dust)
The current level of particulate matter PM10 in Trieste is: 12 (Good)

How is the O3 level today in Trieste? (ozone (O3))
50 (Good)

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

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

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

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

Quality of life in Trieste

Trieste

Thursday, August 27, 2026 at 3:00 AM

🌦️ Weather · 16-day Forecast — Italy

16-day weather forecast for Italy: today around 33°C (clear sky), lows near 24°C. Daily temperature and conditions, updated every day. Strong wind (about 18 km/h) is actively clearing smog and dust away.

☀️ UV Index · 16-day Forecast — Italy

The UV index in Italy today is 7.1 (high) — unprotected fair skin can burn in about 30 minutes.

📍 Air quality in nearby cities

Live PM2.5 around Trieste — compare nearby locations.

• LjubljanaSlovenia 12 µg/m³
• Rome 14 µg/m³
• Milan 26 µg/m³
• Naples 16 µg/m³
• Turin 10 µg/m³
• Palermo 19 µg/m³
• Genova 7 µg/m³
• Florence 9 µg/m³

Frequently asked questions

Is the air safe to breathe in Trieste today?

The current average PM2.5 across Trieste is about 10 µg/m³, rated “Good”. Air quality is good — outdoor activities are fine for everyone.

What is the current PM2.5 level in Trieste?

Right now PM2.5 in Trieste averages about 10 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 Trieste?

Over the past week, the highest daily PM2.5 in Trieste was recorded on Thursday, August 27 (about 9 µg/m³).

What is the UV index in Trieste today?

The UV index in Trieste today is 7.1 (high) — unprotected fair skin can burn in about 30 minutes.

Does today's wind help disperse smog in Trieste?

Strong wind (about 18 km/h) is actively clearing smog and dust away.

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.