He remained in the Second Division after leaving Bradford, signing with Southampton in May 1937, where he replaced the recently retired Bert Scriven. Warhurst became the first-choice goalkeeper over the next two seasons, playing 81 league games for the club in total. The outbreak of the Second World War necessitated the abandonment of the 1939–40 season after three matches, signalling the end of Warhurst's professional career. However, he continued to play for Southampton in the Wartime Leagues. During the war, he also played on occasions for the Cunliffe-Owen Aircraft works team based at Eastleigh. Described as "on the small side", Warhurst was a "sound 'keeper with a fine reputation for sportsmanship and comradeship".
