Somerset reservoirs at exceptionally low levels as heatwave continues

Somerset's reservoirs are among the lowest in England after months of dry weather, with experts warning that forecast rain will do little to ease water shortages.

25 Jul 2026 - 20:55
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SalisburyPost C Lino
Image:(C Lino)

Reservoirs across Somerset have fallen to some of the lowest levels in England following the driest spring in more than 50 years and a series of summer heatwaves.

The Environment Agency says Blagdon Reservoir and Wimbleball Reservoir are now at "exceptionally low" levels, while Clatworthy Reservoir has been classified as "notably low". The three reservoirs are currently among the lowest in the country.

Despite rain being forecast across parts of the South West this weekend, forecasters say the showers are unlikely to make a significant difference to water supplies or ease the dry conditions affecting the region.

The West of England remains under a yellow heat-health alert, with temperatures expected to stay high until Sunday morning. Weather experts say some areas have experienced close to three weeks of heatwave conditions, leaving gardens, farmland and reservoirs under increasing pressure.

The prolonged dry weather has also affected groundwater levels, particularly across the Cotswolds and Wessex Downs, while grass and crops have become scorched in many parts of the region.

Thames Water introduced a hosepipe ban for more than 10 million customers earlier this week, covering parts of Wiltshire, Gloucestershire, Surrey, the Thames Valley and London. However, water companies serving much of Somerset have not yet announced similar restrictions.

Environmental experts are warning that more sustained rainfall will be needed to replenish reservoirs after months of unusually dry weather. While short showers may dampen the ground, they are not expected to reverse the long-term impact of the heat.

The dry conditions are also affecting wildlife and trees, with local councils encouraging residents to help water young trees where possible to improve their chances of surviving the summer.

With further warm weather expected into August, authorities are continuing to urge people to use water wisely and remain prepared for additional conservation measures if dry conditions persist.

C Lino

Editor & Founder | SalisburyPost Passionate about local journalism, I am dedicated to delivering trusted news and strengthening connections across Salisbury and Wiltshire. Through SalisburyPost, I aim to keep residents informed, celebrate community achievements, and highlight the stories that matter most to local people.

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