Porvoo — weather by month, water temperature

The average maximum daily temperature — 19.2°C in July. Average maximum night temperature — 15.7°C in August. The average minimum daily temperature — -2.2°C in January. The average minimum night temperature — -4°C in February.

Average maximum temperature of the water — 17.4°C fixed in August. The average minimum temperature of the water — -0.5°C fixed in February.

Maximum precipitation — 69.6 mm It was recorded in October. Minimum precipitation — 37.1 mm It was recorded in March.