Deepest lakes & reservoirs in United Kingdom by maximum depth (ft)
The estimated greatest depth of the water in a lake can be measured at the lake’s normal elevation. If the water volume and surface area of a lake are known, an estimate of the lake’s average depth can be calculated:Water volume ÷ Surface Area = Average Depth
Example: 1,000,000 acre-feet ÷ 20,000 acres = 50 feet average depth.
You can find many of the the world’s deepest lakes on LakeLubbers. If you sort the list, you will find the (maximum depth of) the shallowest lakes in our database. Note: For some lakes, lake depth data is unknown, so this table may display fewer lakes than the total 43 articles we have published for United Kingdom lakes.
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Below are lakes within United Kingdom > Compared by maximum depth in feet. This list does not represent all lakes in United Kingdom, only the 43 United Kingdom lake articles we have published on the LakeLubbers website.
Lake name | Max depth in feet | Lake description |
---|---|---|
Llyn Brianne Reservoir (Mid Wales Region, UK, United Kingdom, Wales, United Kingdom) |
278 ft | Also known as Llyn Brianne, Lake Brianne The Llyn Brianne Reservoir is a beautiful 530-acre (2.1 square kilometer) body of water nestled in the Cambrian Mountains of Mid-Wales. Created in 197 … |
Lake District (England, England's Northwest Region, United Kingdom) |
243 ft | Also known as The Lake, Lakeland Holiday in England’s Lake District, and you will find sparkling lakes set amidst stunning mountain scenery, wild heather carpeting gently rolling hill … |
Lower Lough Erne (Fermanagh Region, Northern Ireland, Northern Ireland Region, United Kingdom, United Kingdom) |
226 ft | Also known as Lower Lake Erne, Lake Earne Lower Lough (Lake) Erne is one of several lakes on the beautiful River Erne in County Fermanagh, Northern Ireland. The River Erne begins in County Cav … |
Llyn Clywedog (Mid Wales Region, UK, United Kingdom, Wales, United Kingdom) |
217 ft | Also known as Lake Clywedog, Clywedog Reservoir The Clywedog Reservoir, or Llyn (Lake) Clywedog, was formed by damming the River Clywedog, a tributary of the River Severn, in 1967. The concrete butt … |
Strangford Lough (Down Region, Northern Ireland, Northern Ireland Region, United Kingdom, United Kingdom) |
216 ft | Also known as Strangford Lake, Loch Cuan, Strangford Strangford Lough (Lake) is a 37,066-acre inland, tidal, salt water lake off the east coast of County Down in Northern Ireland. Separated from the Iris … |
Lake Windermere (England, England's Northwest Region, United Kingdom) |
210 ft | Also known as Windermere, The Lake District Lake Windermere is the largest natural lake in England, covering more than 3,600 acres (1,476 hectares) in northwest England’s famous Lake District. C … |
Ullswater (England, England's Northwest Region, United Kingdom) |
207 ft | Also known as Ullswater Lake, The Lake District Cumbria, in northwest England’s famous Lake District, is home to diverse natural features that attract visitors from near and far. Ullswater, a natura … |
Coniston Water (England, England's Northwest Region, United Kingdom) |
184 ft | Also known as Conison Lake, Coniston, Thurston Water, The Lake District Coniston Water is in England’s Lake District, its spectacular landscapes making it an impressive tourist attraction in its own right. However, Conisto … |
Loch Shin (Highlands & Moray Region, Scotland, Scotland, United Kingdom, United Kingdom) |
162 ft | Loch Shin is a long and narrow glacial lake located in County Sutherland, part of the Scottish Highlands. This freshwater loch measures about 17.5 mil … |
Bala Lake (North Wales Region, UK, United Kingdom, Wales, United Kingdom) |
137 ft | Also known as Llyn Tegid Bala Lake is nestled in the gentle rolling hills of North Wales and has stunning mountains resting in the background. The lake, called Llyn Tegid in W … |
Llyn Padarn (North Wales Region, UK, United Kingdom, Wales, United Kingdom) |
94 ft | Also known as Lake Padarn Llyn Padarn (Lake Padarn) is a sparkling 242-acre (one square kilometer) lake nestled in the Llanberis Pass at the foot of Mount Snowdon, (Wales’ high … |
Upper Lough Erne (Fermanagh Region, Northern Ireland, Northern Ireland Region, United Kingdom, United Kingdom) |
89 ft | Also known as Upper Lake Erne Upper Lough Erne is a sparkling 8,525-acre lake on the scenic River Erne in County Fermanagh, Northern Ireland. The River Erne begins in County Cavan … |