The temporary use ban was implemented in parts of the Thames Valley over a month ago, including in Swindon and areas of Gloucestershire and Wiltshire.
This move came after recognising the urgent need to conserve resources over the hot, dry summer.
Nevil Muncaster, strategic water resources director at Thames Water, said: "I want to thank customers for helping to save water across their homes and gardens since we implemented the temporary use ban.
"These welcomed reductions have really supported our efforts to maintain stable reservoir levels through this hot dry summer."
He added that despite some wet weather, only three per cent of the long-term average rainfall for August has been received so far.
This has contributed to the overall strain on water resources across the region.
Thames Water has also been actively working to protect supplies, fixing over 1,450 leaks and installing over 34,000 smart meters in the Thames Valley since the start of June.
Mr Muncaster stated: "We still need prolonged and significant rainfall to replenish supplies, and based on current forecasts, we anticipate the hosepipe ban will remain in place as we continue to monitor reservoir levels.
"It is important to remember every drop of water we use comes from the environment, reducing water use helps to protect the health of the local waterways and wildlife."
Recent weather statistics and water resource information indicate that July was the fifth warmest on record, with five consecutive months of below-average rainfall.
River flows and groundwater levels at the end of July were below average for the time of year.
Thames Water has also provided top tips for saving water, based on a recent survey of 2,000 households.
Suggestions include taking shorter showers to save around 20 litres of water per person each day, turning off taps while brushing teeth, fixing leaky loos which can waste 200-400 litres a day, reducing the number of weekly washes, and collecting rainwater using a water butt.
The survey found only 27 per cent of households in the Thames Water network area currently use a water butt.
Further information on water resources in the Thames Water areas can be found on their website.