In reply to CL1MB0N:
I don't have much to add to what the others have said, except that here are the tide times for the last week of May.
2015-05-23 4:11 AM BST 1.99 meters Low Tide
2015-05-23 10:33 AM BST 8.33 meters High Tide
2015-05-23 4:25 PM BST 2.20 meters Low Tide
2015-05-23 10:48 PM BST 8.30 meters High Tide
2015-05-24 4:53 AM BST 2.42 meters Low Tide
2015-05-24 11:15 AM BST 7.86 meters High Tide
2015-05-24 5:09 PM BST 2.64 meters Low Tide
2015-05-24 11:33 PM BST 7.85 meters High Tide
2015-05-25 5:43 AM BST 2.83 meters Low Tide
2015-05-25 12:05 PM BST 7.44 meters High Tide
2015-05-25 6:05 PM BST 3.02 meters Low Tide
2015-05-26 12:29 AM BST 7.48 meters High Tide
2015-05-26 6:47 AM BST 3.11 meters Low Tide
2015-05-26 1:07 PM BST 7.17 meters High Tide
2015-05-26 7:14 PM BST 3.23 meters Low Tide
2015-05-27 1:35 AM BST 7.30 meters High Tide
2015-05-27 7:58 AM BST 3.17 meters Low Tide
2015-05-27 2:17 PM BST 7.15 meters High Tide
2015-05-27 8:27 PM BST 3.18 meters Low Tide
2015-05-28 2:44 AM BST 7.37 meters High Tide
2015-05-28 9:05 AM BST 2.99 meters Low Tide
2015-05-28 3:24 PM BST 7.40 meters High Tide
2015-05-28 9:31 PM BST 2.90 meters Low Tide
2015-05-29 3:47 AM BST 7.65 meters High Tide
2015-05-29 10:03 AM BST 2.65 meters Low Tide
2015-05-29 4:22 PM BST 7.79 meters High Tide
2015-05-29 10:25 PM BST 2.52 meters Low Tide
2015-05-30 4:40 AM BST 8.01 meters High Tide
2015-05-30 10:53 AM BST 2.28 meters Low Tide
2015-05-30 5:11 PM BST 8.21 meters High Tide
2015-05-30 11:12 PM BST 2.14 meters Low Tide
2015-05-31 5:27 AM BST 8.36 meters High Tide
2015-05-31 11:36 AM BST 1.95 meters Low Tide
2015-05-31 5:54 PM BST 8.59 meters High Tide