Climate
Espoo logs 130 frost days a year to Oulu's 173 — Espoo wins by 43. Espoo also leads on sunny days by 9.
Espoo
Feels-like °C
Dinner outside
Oulu
Feels-like °C
Dinner outside
Air Quality
Espoo averages 6.2 µg/m³ (good) PM2.5 annually versus Oulu's 4.3 µg/m³ (excellent) — Oulu breathes ~31% cleaner air (1.9 µg/m³ lower).
Espoo
Oulu
PM2.5 annual average
WHO classification
City Scale
Both maps at the same real-world scale — 1 cm on either map is the same distance.
Espoo (257K) and Oulu (84K) are 3.0x in population — Espoo is the larger metro, Oulu the smaller.
Espoo is roughly 3.0x the scale of Oulu
Based on population (area data unavailable for some cities)
EspooOuluCity Scale Rankings
Espoo257K3.0xOulu84K1xWho Thrives Here
Both cities work well for the clean air seeker.
Also compared
Frequently asked about Espoo vs Oulu
▶How does the climate compare between Espoo and Oulu?
▶Should I move to Espoo or Oulu?
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