The Shrimpers won four of their five league games in the month and are now firmly in the play-off places thanks to big wins over AFC Wimbledon and Torquay.
Sturrock saw off competition from Chesterfield manager Paul Cook and Paul Tisdale of Exeter to win the award.
Southend's month began with a victory over Stockport in the first round of the FA Cup and was followed by wins against Bristol Rovers, Torquay, AFC Wimbledon and Rochdale as well as a draw with high-flying Port Vale.
