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August in Porvoo averages a daily high of 20°C with nights around 14.8°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. 25 years of August data.
See all twelve months for Porvoo →