Tidal Ranges
The table below shows you the difference between high and low water in metres at different times of year in various places around the British Isles.
Location | Spring | Average | Neap |
---|---|---|---|
Plymouth | 4.7 | 3.5 | 2.2 |
Portland | 1.9 | 1.3 | 0.7 |
Southampton | 4.0 | 3.0 | 1.9 |
Dover | 5.9 | 4.6 | 3.3 |
London Bridge | 6.6 | 5.6 | 4.6 |
Harwich | 3.6 | 3.0 | 2.3 |
Lowestoft | 1.9 | 1.5 | 1.1 |
Immingham | 6.4 | 4.8 | 3.2 |
Middlesbrough | 4.6 | 3.5 | 2.3 |
North Shields | 4.3 | 3.2 | 2.1 |
Aberdeen | 3.7 | 2.7 | 1.8 |
Wick | 2.8 | 2.1 | 1.8 |
Lerwick | 1.7 | 1.2 | 0.5 |
Oban | 3.3 | 2.2 | 1.1 |
Greenock | 3.0 | 2.4 | 1.9 |
Liverpool | 8.4 | 6.4 | 4.5 |
Holyhead | 5.0 | 3.8 | 2.5 |
Milford Haven | 6.3 | 4.5 | 2.7 |
Swansea | 8.4 | 6.4 | 4.5 |
Avonmouth | 12.3 | 9.4 | 6.5 |
Dublin | 3.4 | 2.6 | 1.9 |
Belfast | 3.1 | 2.5 | 1.9 |
Londonderry | 2.2 | 1.5 | 0.9 |
Boulgne | 7.8 | 6.1 | 4.4 |
Le Havre | 6.7 | 5.2 | 3.6 |
Cherbourg | 5.4 | 4.0 | 2.5 |
St Helier | 9.8 | 5.9 | 4.0 |
St Malo | 10.7 | 7.8 | 4.8 |
Brest | 6.1 | 4.5 | 2.9 |