Thames Water Hosepipe Ban: Major Restrictions to Hit Southern England from July 22
A widespread hosepipe ban is set to hit southern England as Thames Water announces emergency measures in response to dwindling water supplies and dry conditions.
From 22 July, customers across large swathes of Oxfordshire, Gloucestershire, Wiltshire, and parts of Berkshire will no longer be allowed to use hosepipes. The restrictions apply to all OX, GL, and SN postcodes, as well as RG4, RG8, and RG9.
The decision follows the Environment Agency placing the region into a “prolonged dry weather category”, prompting concerns over water security.
The water supplier explained the reasoning behind the move, pointing directly to Farmoor Reservoir, the area’s primary source, which is now running low. The reservoir is topped up by pumping water from the River Thames—something that’s becoming increasingly difficult due to lower flow levels.
“Our current reservoir levels in Farmoor are below average for this time of year at 92 per cent. Reduced flow from groundwater to the River Thames and no forecast rain means that our ability to maintain storage may be difficult,” a Thames Water spokesperson said.
“And forecast high temperatures are likely to increase the demand for water in the area. The hot weather also means more water is lost through evaporation from water bodies such as rivers and lakes. Managing the amount of water we take from rivers can help protect local wildlife.”
The big problem? The heat. Thames Water pointed out that 2025 has brought one of the warmest and driest springs in over 100 years, with June breaking records as England’s hottest ever.
“That’s why we need to bring in a hosepipe ban. It will help protect the environment and make sure there’s enough water to go around this summer.”
Residents in the affected areas are being urged to follow the restrictions carefully. The ban covers a range of outdoor water uses including garden sprinklers, washing cars with hosepipes, and filling paddling pools.
With weather forecasts showing little to no rain on the horizon, Thames Water has warned that further restrictions may be necessary if conditions worsen.
For now, the company is asking customers to play their part in conserving water—small changes, they say, can make a big difference.
