TIDE INFORMATION

Tide times and heights provided by us, in any form (including printed tables, emails, booking confirmations, our website, or verbally), are predictions only.

The UK Hydrographic Office advises:

HIGH WATERS - IMPORTANT NOTE.

The high water duration at Portsmouth can occur over an extended time period, i.e. a "high water stand". The predictions give the time and height of high water corresponding to the highest point. Users are advised to consult hourly-height predictions (or time intervals of less than an hour) owing to the complex shape of the tidal curve between the times and height of high and low water.

Strong winds between North-east and South-east coupled with high barometric pressures may reduce predicted levels by up to 1 m and delay times of High and Low Waters by up to 1 hour. Strong winds from the West coupled with low barometric pressures may increase predicted levels and advance predicted times by a similar amount.