What is the air quality in Trieste today?

The current Air Quality Index (AQI) in Trieste is 34 (Good). PM2.5 concentration is 8.05 µg/m³.

What is the temperature in Trieste right now?

The current temperature in Trieste is 15.0°C (feels like 15.0°C). Humidity is 62.9% and wind speed is 54.4 km/h.

Is it safe to go outside in Trieste?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.0 (Low).

Air Quality in Trieste, Italy

Windy

15.0°C · 62.9% humidity

15.0°

Feels 15.0°

Good

Air quality is satisfactory. Enjoy outdoor activities.

2 stations

Nearby Monitoring Stations

AQI Forecast

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Station readings

Air Quality Index Trend

43h · 1 stn

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Trieste's air quality is shaped by traffic emissions and residential heating. Pollution levels tend to peak during winter months when cold air traps emissions close to ground level.

62.9%

Humidity

54.4 km/h

Wind ENE

1019.6 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

8.05 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Trieste?

Temperature & Precipitation

PM2.5 Trend

43h · 1 station

PM2.58.05 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.0

Low

Station readings (2 stations within 25 km)

8.05

Median

8.05

Average

7.9

Low

8.2

High

PM2.5 µg/m³ · Model: 6.0 · Bias: -2.0

What is the 7-day forecast for Trieste?

10-21

15.0° 4.5°

0.13 mm

10-22

19.0° 8.4°

0.69 mm

10-23

16.8° 8.0°

9.06 mm

10-24

12.4° 6.8°

0.13 mm

10-25

15.1° 8.4°

0.19 mm

10-26

10.5° 6.9°

4.69 mm

10-27

16.6° 7.0°

37.56 mm

Both models agree Avg diff: 2.6°C

Where are air quality stations near Trieste?

Koper, Slovenia

12.8 km PM2.5: 8.2 µg/m³

Koper, Slovenia

12.8 km PM2.5: 7.9 µg/m³

What cities are near Trieste?

34 Koper 23 Monfalcone 23 Gorizia 23 Udine 20 Rijeka 48 Ljubljana 63 Portogruaro 46 Kranj 30 Pula 51 Cordenons

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Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-10-21T12:31 UTC.