What's Ucsd Academic Calendar 2025? Key Dates Inside

The University of California, San Diego (UCSD) academic calendar is a crucial tool for students, faculty, and staff to plan and stay organized throughout the academic year. The calendar outlines key dates, deadlines, and events that occur during the year. In this article, we will delve into the UCSD academic calendar for 2025, highlighting important dates and providing an overview of the academic year.
UCSD Academic Calendar 2025: Key Dates

The UCSD academic calendar for 2025 is divided into three quarters: fall, winter, and spring. Each quarter has its own set of key dates, including the start and end of classes, finals week, and holidays. Below are some of the key dates for the 2025 academic year:
Fall Quarter 2025
The fall quarter at UCSD begins on September 24, 2025, and ends on December 12, 2025. Some key dates for the fall quarter include:
- September 24, 2025: First day of classes
- November 11, 2025: Veterans Day holiday
- November 25-29, 2025: Thanksgiving break
- December 7-12, 2025: Finals week
Winter Quarter 2025
The winter quarter at UCSD begins on January 5, 2026, and ends on March 20, 2026. Some key dates for the winter quarter include:
- January 5, 2026: First day of classes
- January 18, 2026: Martin Luther King Jr. Day holiday
- February 15-19, 2026: Presidents’ Day break
- March 14-20, 2026: Finals week
Spring Quarter 2025
The spring quarter at UCSD begins on March 30, 2026, and ends on June 12, 2026. Some key dates for the spring quarter include:
- March 30, 2026: First day of classes
- May 25, 2026: Memorial Day holiday
- June 6-12, 2026: Finals week
Quarter | Start Date | End Date |
---|---|---|
Fall 2025 | September 24, 2025 | December 12, 2025 |
Winter 2026 | January 5, 2026 | March 20, 2026 |
Spring 2026 | March 30, 2026 | June 12, 2026 |

In addition to the key dates outlined above, the UCSD academic calendar also includes important deadlines for registration, course changes, and degree applications. Students should consult the official UCSD website for the most up-to-date information and to plan their academic year accordingly.
Academic Year Structure

The UCSD academic year is divided into three quarters, each lasting approximately 11 weeks. The quarters are:
- Fall quarter: September to December
- Winter quarter: January to March
- Spring quarter: March to June
Each quarter has its own set of classes, and students can take a variety of courses to fulfill their degree requirements. The academic year structure allows students to focus on a smaller set of classes each quarter, enabling them to delve deeper into their studies and engage with the course material more effectively.
Registration and Course Enrollment
Registration for classes at UCSD typically occurs in the preceding quarter. For example, registration for fall quarter classes usually takes place in August. Students can enroll in classes through the UCSD registration system, and it’s essential to register on time to secure a spot in desired courses.
What is the first day of classes for the fall quarter 2025?
+The first day of classes for the fall quarter 2025 is September 24, 2025.
How long is each quarter at UCSD?
+Each quarter at UCSD is approximately 11 weeks long.
When is registration for fall quarter classes typically held?
+Registration for fall quarter classes at UCSD typically occurs in August.
In conclusion, the UCSD academic calendar for 2025 provides a comprehensive outline of key dates, deadlines, and events that occur throughout the academic year. By staying informed and up-to-date on these important dates, students can plan their academic year effectively and make the most of their time at UCSD.