How green is Olbia?
Olbia has 1343 square metres of green space per inhabitant in 2025 satellite data. Vegetation covers 22% of the city area. In summer, the hottest land surface zones sit 4.2 °C above the city-wide average (land surface temperature, not air temperature). The PM2.5 model estimate for 2025 is 9.4 µg/m³. Satellite records cover 8 years, 2018 to 2025. Overall, Olbia ranks #274 of 828 reviewed cities in the Green City Index (green space, land surface heat and air quality combined), and #9 of 115 in Italy.
1343
m² green per inhabitant
22%
vegetation cover
+4.2 °C
hottest zones vs city mean
9.4
PM2.5 estimate µg/m³
19.7
PM10 estimate µg/m³
18.5
NO2 estimate µg/m³
359.5
Index · #274/828
City maps
Nearby in the rankings
This city is at position #274 of 828 worldwide.
| #rank | City | Country | Index |
|---|---|---|---|
| 271 | San Severo | Italy | 357.7 |
| 272 | Ferrara | Italy | 359.3 |
| 273 | Gandia | Spain | 359.3 |
| 274 | Olbia | Italy | 359.5 |
| 275 | Arezzo | Italy | 359.7 |
| 276 | Charleroi | Belgium | 360.0 |
| 277 | Słupsk | Poland | 360.2 |
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.