How green is Rennes?

Rennes has 63 square metres of green space per inhabitant in 2025 satellite data. Vegetation covers 28% of the city area. In summer, the hottest land surface zones sit 3.6 °C above the city-wide average (land surface temperature, not air temperature). The PM2.5 model estimate for 2025 is 7.7 µg/m³. Satellite records cover 8 years, 2018 to 2025. Overall, Rennes ranks #287 of 828 reviewed cities in the Green City Index (green space, land surface heat and air quality combined), and #35 of 115 in France.

63
m² green per inhabitant
28%
vegetation cover
+3.6 °C
hottest zones vs city mean
7.7
PM2.5 estimate µg/m³
15.5
PM10 estimate µg/m³
13.5
NO2 estimate µg/m³
365.0
Index · #287/828
Open interactive map

City maps

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

Nearby in the rankings

This city is at position #287 of 828 worldwide.

#rank City Country Index
284 Gijón Spain 364.5
285 Funchal Portugal 364.7
286 Łomża Poland 365.0
287 Rennes France 365.0
288 Genk Belgium 365.2
289 Kerpen Germany 365.3
290 Darmstadt Germany 365.3

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.