The measure was launched on August 24 after record-breaking scorching climate with highs of 40C.
But on Tuesday, Thames Water said it was lifting the measure with fast impact, saying current heavy rains meant water ranges have began to enhance.
Both September and October experienced long run common rainfall above 130%, it said.
The first two weeks of November additionally noticed a months’ price of rainfall as heavy rains battered the capital.
“Careful consideration has gone into our decision to remove the ban,” said Thames Water CEO, Sarah Bentley.
“Despite the recent rain, we still need to protect our future water supply.
“We need more rain throughout winter to ensure our rivers and reservoirs are fully recharged, ready for spring and summer next year.”
However, Ms Bentley said some water storage websites in west London stay under common ranges, requiring a “cautious approach” and monitoring of water ranges all through autumn and winter.
The ban had affected 15 million clients in London and the Thames Valley, stopping them from watering gardens or washing vehicles.
The utility company had confronted criticism at the time for imposing the measure when around 1 / 4 of its provide was lost in leaks.
Ms Bentley said fixing leaks was the company’s “top priority” and that engineers repaired 1,000 leaks per week.