Air Quality in Trieste, Italy
Clear
26.9°C · 43.1% humidity
26.9°
Feels 26.9°
47
Good
Air quality is satisfactory. Enjoy outdoor activities.
1 station
Nearby Monitoring Stations
Trieste's air quality — share it
AQI Forecast
Calibrated
51
12am
51
51
47
3am
51
51
51
6am
51
51
51
9am
51
51
51
12pm
51
51
53
3pm
53
53
53
6pm
53
53
53
9pm
53
53
Station readings
42
47
50
CAMS model
adj +26
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
27
27
27
27
27
27
27
27
27
Air Quality Index Trend
28h · 1 stnTrieste'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.
43.1%
Humidity
22.4 km/h
Wind NE
1012.9 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
11.3 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for Trieste?
Temperature & Precipitation
PM2.5 Trend
28h · 1 stationPM2.511.3 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
Station readings (1 station within 25 km)
11.3
Median
11.3
Average
11.3
Low
11.3
High
PM2.5 µg/m³ · Model: 6.25 · Bias: -5.1
What is the 7-day forecast for Trieste?
08-03
34.6° 25.1°
08-04
30.5° 22.6°
08-05
33.8° 19.4°
08-06
29.6° 25.1°
08-07
37.3° 24.6°
0.19 mm
08-08
26.6° 22.6°
0.06 mm
08-09
29.9° 21.2°
0.38 mm
Both models agree
Avg diff: 2.6°C
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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 2026-08-08T01:02 UTC.