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Porvoo in September

Average high

15.4°C

Average low

10.8°C

Rainfall

—

— wet days

Comfort score

out of 100

September in Porvoo averages a daily high of 15.4°C with nights around 10.8°C. Comfortable conditions for being outdoors all day.

Across the year, the best time to visit Porvoo is June–August.

Based on PORVOO EMASALO, FI (21.1km), 1995–2024. 26 years of September data.