Police told the City Council's Public Safety and Neighborhood Services Committee on Wednesday that a total of 3,438 alcohol-related citations were given in 2007, compared to 2,855 so far this year, a decline of nearly 17 percent.
But opponents of the alcohol ban say a number of factors contributed to a decline in crime in the beach areas, notably a lack of visitors.
The temporary ban was approved by the City Council last November. It is set to expire Jan. 14 if voters reject Proposition D on Nov. 4.
Proposition D would permanently make the consumption of alcohol unlawful at city beaches, Mission Bay Park and other coastal parks.