How green is Porvoo?

Porvoo has 23770 square metres of green space per inhabitant in 2025 satellite data. Vegetation covers 79% of the city area. In summer, the hottest land surface zones sit 2.6 °C above the city-wide average (land surface temperature, not air temperature). The PM2.5 model estimate for 2025 is 4.7 µg/m³. Satellite records cover 8 years, 2018 to 2025. Overall, Porvoo ranks #2 of 828 reviewed cities in the Green City Index (green space, land surface heat and air quality combined), and #2 of 9 in Finland.

23770
m² green per inhabitant
79%
vegetation cover
+2.6 °C
hottest zones vs city mean
4.7
PM2.5 estimate µg/m³
9.5
PM10 estimate µg/m³
5.2
NO2 estimate µg/m³
36.2
Index · #2/828
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Satellite — Porvoo Satellite Green cover — Porvoo Green cover Detected green vegetation Heat — Porvoo Heat cooler hotter NO2 — Porvoo NO2 lower higher µg/m³ PM2.5 — Porvoo PM2.5 lower higher µg/m³ PM10 — Porvoo PM10 lower higher µg/m³

Nearby in the rankings

This city is at position #2 of 828 worldwide.

#rank City Country Index
1 Kouvola Finland 4.2
2 Porvoo Finland 36.2
3 Karlskrona Sweden 52.5
4 Klinteby Frihed Denmark 56.7
5 Norrköping Sweden 57.2

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.