The acceptance rate at UCSD is 38% . In other words, of 100 students who apply, 38 are admitted. This means the school is quite selective. If you have strong academic scores, you have a great shot at getting in.he average GPA at UCSD is 4. This makes UCSD Extremely Competitive for GPAs. (Most schools use a weighted GPA out of 4.0, though some report an unweighted GPA. With a GPA of 4, UCSD requires you to be at the top of your class.