How green is Aachen?

Aachen has 1866 square metres of green space per inhabitant in 2025 satellite data. Vegetation covers 70% of the city area. In summer, the hottest land surface zones sit -4.4 °C above the city-wide average (land surface temperature, not air temperature). The PM2.5 model estimate for 2025 is 9.8 µg/m³. Satellite records cover 8 years, 2018 to 2025. Overall, Aachen ranks #52 of 828 reviewed cities in the Green City Index (green space, land surface heat and air quality combined), and #14 of 103 in Germany.

1866
m² green per inhabitant
70%
vegetation cover
-4.4 °C
hottest zones vs city mean
9.8
PM2.5 estimate µg/m³
14.8
PM10 estimate µg/m³
14.0
NO2 estimate µg/m³
163.0
Index · #52/828
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Satellite — Aachen Satellite Green cover — Aachen Green cover Detected green vegetation Heat — Aachen Heat cooler hotter NO2 — Aachen NO2 lower higher µg/m³ PM2.5 — Aachen PM2.5 lower higher µg/m³ PM10 — Aachen PM10 lower higher µg/m³

Nearby in the rankings

This city is at position #52 of 828 worldwide.

#rank City Country Index
49 Montreuil France 154.0
50 Weimar Germany 155.0
51 Mölndal Sweden 158.7
52 Aachen Germany 163.0
53 Deventer Netherlands 166.8
54 Lelystad Netherlands 167.5
55 Jena Germany 171.0

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.