In Venice the high tide, or high water, happens in the fall or, more rarely, in spring when the winds of Scirocco pull on the lagoon and create strong tide peaks. It is a phenomenon that Venetians are accustomed and that involves some discomfort, but if well equipped you can still turn to the city with a nice pair of boots that you can buy at any shoe store.
The parameters to realize the height of the water are the following and should be calculated on the average sea level, or zero tidal, according to the measurement from the basin stations.

 

Under 80 cm the tide is normal
At 100 cm-(5% of the area of the old Town invaded): mild discomfort.
At 110 cm-sustained tide (14% of the surface invaded-ring the sirens with an advance of 3-4 hours): average discomfort.
A 120 cm-but very sustained rea (30% of the surface invaded): high discomfort.
At 130 cm-very sustained tide (45% of the surface invaded): heavy discomfort.
At 140 cm-exceptional tide (55% of the invaded surface): Very heavy discomfort
At 150 cm-exceptional tide (65% of the surface invaded)
At 160 cm-exceptional tide (over 70% of the surface invaded)

 

The city of Venice warns all citizens in time with a siren that plays a few hours before the high tide arrives. You can also download the app HI!TIDE reporting forecasts on high water and consultable to check whether there will be any relevant phenomena.

 

In Venice high Water has created numerous and important problems especially for the inhabitants of the ground or for the owners of the shops that could not stem the water that came from their door. It has made huge damage and has eroded and ruined dwellings and monuments, churches and libraries. The historical maximum height was recorded on November 4, 1966 with a value of + 194 centimeters, while the minimum height was detected on January 18, 1882, with-124 centimeters.
But don’t worry it is a passing phenomenon!