A high tide is defined as a tide where the coefficient (i.e. the amplitude of the tide) is equal to or greater than 100 and in Saint-Malo, the tidal range (i.e. the difference between high and low tides) is often exceptional and can reach 13 metres. This ranks the city among the sites with the highest tides in Europe!
The high tides in Saint-Malo are a real spectacle. At high tide, it is enough for the sea to be a little rough for the waves to confront the city walls. At low tide, fishermen on foot enjoy themselves and collect shellfish from the coast. In all circumstances, extreme caution is recommended.
Dates of the high tides in 2022:
Wednesday 2 and Thursday 3 February: coefficient of 102 on both days
From Thursday 3 to Saturday 5 March: coefficient of 103 on 3 and 4 March
From Saturday 19 to Monday 21 March: coefficient of 100 on 20 March
Sunday 17 to Tuesday 19 April: coefficient of 103 on Monday 18 April
Tuesday 17 May: coefficient of 100
From Friday 12 to Monday 15 August: coefficient of 103 on Saturday 13 and Sunday 14 August