Helsinki — weather by month, water temperature

The average maximum daily temperature — 20.5°C in July. Average maximum night temperature — 15.3°C in July. The average minimum daily temperature — -1.9°C in January. The average minimum night temperature — -3.7°C in February.

Average maximum temperature of the water — 17.2°C fixed in August. The average minimum temperature of the water — 0°C fixed in February.

Maximum precipitation — 64.4 mm It was recorded in August. Minimum precipitation — 35.8 mm It was recorded in April.