How green is Bonn?

Bonn has 249 square metres of green space per inhabitant in 2025 satellite data. Vegetation covers 60% of the city area. In summer, the hottest land surface zones sit 4.8 °C above the city-wide average (land surface temperature, not air temperature). The PM2.5 model estimate for 2025 is 12.2 µg/m³. Satellite records cover 8 years, 2018 to 2025. Overall, Bonn ranks #588 of 828 reviewed cities in the Green City Index (green space, land surface heat and air quality combined), and #94 of 103 in Germany.

249
m² green per inhabitant
60%
vegetation cover
+4.8 °C
hottest zones vs city mean
12.2
PM2.5 estimate µg/m³
16.9
PM10 estimate µg/m³
21.5
NO2 estimate µg/m³
491.3
Index · #588/828
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City maps

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

Nearby in the rankings

This city is at position #588 of 828 worldwide.

#rank City Country Index
585 San Francisco United States 491.0
586 Cannes France 491.0
587 Pernik Bulgaria 491.3
588 Bonn Germany 491.3
589 Pazardzhik Bulgaria 492.2
590 Hunedoara Romania 492.5
591 Roman Romania 493.2

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.