Damage ranged from holes in the glass to being shattered.
Several business windows in Hillcrest were vandalized earlier this week.
Police say there were two reports that came in at 11:21 pm and 11:24 pm, respectively on Tuesday, July 2.
The businesses that reported the crimes are located on the 1000 and 1600 blocks of University Avenue.
"They both had a front window broken," SDPD Sergeant Michael P. Stirk told San Diego Gay and Lesbian News.
Police are asking for the public's help in catching the culprits.
Anyone with information about the crimes is asked to call Western Division investigations at (619) 531-2000.