http://www.tendringdc.gov.uk/NR/rdonlyres/1A35AFAB-1CE4-443F-A27B-B6C2E8C1AA23/0/TIDETABLE20101.pdf

This is from the ADMIRALTY TIDE TABLES by permission of the Controller of HMSO (the old man of the sea??) and the UK Hydrographic office - however, there is a big 'but' to this information:

"These tables are indicative only and whilst care is taken to ensure the accuracy, no responsibility can be accepted in case of error."

You mean in case we all drown in an out-going tide, reported as an in-coming tide?

Just how VAGUE is this time and tide forecasting?