On 28 January 2010, Bocaly returned to Montpellier on loan to the end of the season, with an option to purchase. Illness delayed his second Montpellier debut until 13 February, when he started in a 1–0 win over Grenoble. Surgery on a broken hand kept him out until 7 March, when he returned to action as a late substitute against Bordeaux. He made twelve appearances by the end of the season, helping Montpellier finish fifth in the league and qualify for the 2010–11 UEFA Europa League.