The parachuting fatality at Skydive San Diego off the 13500 block of Otay Lakes Road in Jamul was reported shortly after 2 p.m., according to Cal Fire.
Medics pronounced the victim dead at the scene, said Kendal Bortisser, a spokesman for the state agency. The man's name was withheld pending family notification.
According to the owner of Skydive San Diego, the man was in his young 30s and was a "very experienced" skydiver. He was jumping with a new canopy that caused him problems and fell 100 to 150 feet to his death.