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Weymouth Lowlands

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The Weymouth Lowlands are a natural region on England’s south coast in Dorset. Much of the area is part of the Dorset National Landscape. Natural England designates it as National Character Area 138, covering about 132.5 square kilometres (51.2 square miles). It is a narrow coastal strip between 1 and 6 kilometres wide, stretching from Bride Valley west of Burton Bradstock to the area east of Osmington. The town of Weymouth is the main settlement.

Chesil Beach dominates the coastline, sitting along the littoral grasslands in the west before turning away from the mainland to form The Fleet—a series of brackish lagoons—and then continuing as a narrow causeway linking the mainland to the Isle of Portland.

Inland there are long, rounded hogback ridges and broad clay valleys. Most farming is arable. Apart from Weymouth, settlements are few and small. The western part is more varied, wooded and undulating than the eastern part.

Elevation ranges from slightly below sea level to about 208 metres (682 feet). The South Dorset Ridgeway chalk escarpment marks the boundary with the Dorset Downs National Character Area to the north. To the south lies the Isle of Portland, and to the east is the Isle of Purbeck.


This page was last edited on 2 February 2026, at 05:45 (CET).