How green is Trieste?

Trieste has 301 square metres of green space per inhabitant in 2025 satellite data. Vegetation covers 62% of the city area. In summer, the hottest land surface zones sit 5.3 °C above the city-wide average (land surface temperature, not air temperature). The PM2.5 model estimate for 2025 is 12.4 µg/m³. Satellite records cover 8 years, 2018 to 2025. Overall, Trieste ranks #537 of 828 reviewed cities in the Green City Index (green space, land surface heat and air quality combined), and #49 of 115 in Italy.

301
m² green per inhabitant
62%
vegetation cover
+5.3 °C
hottest zones vs city mean
12.4
PM2.5 estimate µg/m³
14.7
PM10 estimate µg/m³
21.8
NO2 estimate µg/m³
467.3
Index · #537/828
Open interactive map

City maps

Satellite — Trieste Satellite Green cover — Trieste Green cover Detected green vegetation Heat — Trieste Heat cooler hotter NO2 — Trieste NO2 lower higher µg/m³ PM2.5 — Trieste PM2.5 lower higher µg/m³ PM10 — Trieste PM10 lower higher µg/m³

Nearby in the rankings

This city is at position #537 of 828 worldwide.

#rank City Country Index
534 Osijek Croatia 466.3
535 Kielce Poland 466.3
536 Noisy-le-Grand France 466.7
537 Trieste Italy 467.3
538 Udine Italy 468.2
539 Lecce Italy 469.3
540 Bielsko-Biala Poland 469.5

Method and caveats

Heat is land surface temperature, not air temperature. Air quality values are model estimates. Green area is vegetation extent detected by satellite, not tree height.