How green is Helsinki?

Helsinki has 107 square metres of green space per inhabitant in 2025 satellite data. Vegetation covers 42% of the city area. In summer, the hottest land surface zones sit 2.8 °C above the city-wide average (land surface temperature, not air temperature). The PM2.5 model estimate for 2025 is 5.0 µg/m³. Satellite records cover 8 years, 2018 to 2025. Overall, Helsinki ranks #93 of 828 reviewed cities in the Green City Index (green space, land surface heat and air quality combined), and #9 of 9 in Finland.

107
m² green per inhabitant
42%
vegetation cover
+2.8 °C
hottest zones vs city mean
5.0
PM2.5 estimate µg/m³
10.0
PM10 estimate µg/m³
7.3
NO2 estimate µg/m³
234.0
Index · #93/828
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City maps

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

Nearby in the rankings

This city is at position #93 of 828 worldwide.

#rank City Country Index
90 Sollentuna Sweden 230.8
91 Montauban France 231.8
92 Den Helder Netherlands 232.3
93 Helsinki Finland 234.0
94 Almelo Netherlands 234.7
95 Alphen aan den Rijn Netherlands 235.3
96 Kaiserslautern Germany 237.8

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.