Can you swim in Northern Italy in winter? In December water temperature throughout Northern Italy is not yet warm enough for swimming and does not exceed 20°C. Based on average water temperature observations over the past ten years, the warmest water temperature in Northern Italy in December was 19°C (in Kalterer See), and the coldest 3.5°C (in Molveno). To find out the sea temperature today and in the coming days, go to Current sea temperature in Northern Italy
Northern Italy cities and resorts with the values of the average water temperature in December in recent years.
For more detailed information about water temperature, surf forecast, weather and time of sunrise and sunset in any specific area of your interest, just click on a city name. For ease of search, all places are also grouped by the first letter of the name.
To find out what the water temperature was in Northern Italy any day over a period of the last ten years, select the month