Where can I find tidal predictions for periods longer than 7 days?
UKHO’s authoritative publication Admiralty Tide Tables contains a year’s predictions and is re-published annually. However, most ports, harbours and havens around the UK publish their tide times for the year in booklet form and these are usually available from local shops etc. Sailing or nautical almanacs, on sale in bookshops and chandlers, reproduce a year’s predictions (under licence from UKHO) and the best known of these are usually held by local public libraries.
