List: Top Ten Locations with Largest Tidal Ranges in the World
Source: Center for Operational Oceanographic Products and Services
Base: All locations in the world where ranges of tides have been observed and measured.
Top 10 Highest Tides in the World
Notes: Tidal range is measured as the vertical difference between a high tide and a succeeding low tide. The most extreme tidal ranges occur around the time of full or new moons, when gravitational forces of both the Sun and Moon are in phase. This type of tide is known as a spring tide. The largest annual tidal range often happens at the time of the Equinox, if it coincides with with a spring tide.
|Location||Country||Tidal Range (feet)|
|The Bay of Fundy||Canada||38.4|
|Ungava Bay, Quebec||Canada||32.0|
|Avonmouth / River Severn||England||31.5|
|Cook Inlet, Alaska||USA||30.3|
|Rio Gallegos (Reduccion Beacon)||Argentina||29.0|
|Banco Direccion, Magellan Strait||Chile||28.0|
The Bay of Fundy has the highest tides in the world, and those enormous tides alone make that the Bay of Fundy is one of the world’s greatest natural wonders.
The height of the tide difference ranges from 3.5 meters (11ft) along the southwest shore of Nova Scotia and steadily increases as the flood waters travel up the 280 km (174 miles) of shoreline to the head of the Bay where, in the Minas Basin, the height of the tide can reach an incredible 16 meters (53ft).
Twice everyday the bay fills and empties of a billion tonnes of water during each tide cycle—that’s more than the flow of all the world’s freshwater rivers combined.
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