In December 2019, Webb cut short his contract with Toulon to return to the Ospreys in the summer of 2020. Webb had been due to see out the remainder of the season with Toulon, but the club's owner accused Webb of having shown a "dishonest attitude" to get himself released from his contract, and stated that Webb would not play for Toulon again. Now without a club, he signed a short-term deal with Bath in February 2020 for the remainder of the 2019–20 Premiership Rugby season. He made his debut on 1 March 2020, in a 19–13 home defeat to Bristol Bears, the first time Bath had lost at home to Bristol in 14 years.