page_title: The Wash
section_title: Water temperature
hierarchical_section_title: The Wash / Water temperature
caption_attribution_description: The Wash looking wsw from over Hunstanton
context_page_description: The Wash is a rectangular bay and estuary at the north-west corner of East Anglia on the East coast of England, where Norfolk meets Lincolnshire, and both border the North Sea. One of the broadest estuaries in the United Kingdom, it is fed by the rivers Witham, Welland, Nene and Great Ouse. It is a 62,046-hectare biological Site of Special Scientific Interest. It is also a Nature Conservation Review site, Grade I, a National Nature Reserve, a Ramsar site, a Special Area of Conservation and a Special Protection Area. It is in the Norfolk Coast Area of Outstanding Natural Beauty and part of it is the Snettisham Royal Society for the Protection of Birds nature reserve.
context_section_description: The Wash varies enormously in water temperature throughout the year. Winter temperatures are brought near freezing from the cold North Sea flows. Summer water temperatures can reach 20–23 °C (68–73 °F) after prolonged high ambient air temperature and sun. This effect, which typically happens in the shallow areas around beaches and often only in pockets of water, is exaggerated by the large sheltered tidal reach.
caption: The Wash looking WSW from over Hunstanton. The Great Ouse and Welland are visible running south.
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