UCSD Academic Calendar 2025-2026: Important Dates and Deadlines

UCSD academic calendar 2025-2026 key dates include enrollment periods, fee deadlines, class start/end dates, finals weeks, and grading timelines.

The University of California, San Diego (UCSD) follows a quarter system, dividing the academic year into four quarters: Fall, Winter, Spring, and Summer.

While most students enroll in classes during the Fall, Winter, and Spring quarters, the Summer Session offers additional opportunities for those looking to accelerate their studies or catch up on credits.

Each quarter is just 10 weeks long, making the pace fast and the schedule intensive—every week counts.

The Fall 2025 Quarter at UCSD includes 49 days of instruction. The Winter 2026 Quarter has 48 instructional days, while the Spring 2026 Quarter also consists of 49 days of instruction.

UCSD Academic Calendar Fall 2025

The UCSD Academic Calendar for fall 2025 contain important dates and deadlines. The Quarter begins on Monday, September 22, 2025, and ends on Saturday, December 13, 2025.

1. The deadline to enter holds is Monday, May 19, 2025, and becomes effective on Friday, May 23, 2025.
2. UCSD Fall 2025 Schedule of Classes and enrollment appointments are available on Tuesday, May 20, 2025.
3. Enrollment begins for continuing students on Friday, May 23, 2025.
4. Wait Lists Open on Saturday, May 31, 2025.
5. Fee payment holds become effective on Tuesday, May 20, 2025.
6. The readmission deadline for undergraduates is Friday, August 1, 2025.
7. Waitlists are suspended for new student enrollment starting Wednesday, August 6, 2025, according UCSD Academic Calendar 2025-2026.
8. New undergraduate student enrollment begins on Monday, August 11, 2025.
9. Waitlists resume on Friday, August 22, 2025.
10. Enrollment reopens to all undergraduates on Saturday, August 23, 2025.
11. The billing statement becomes available on TritonPay on Wednesday, September 3, 2025.
12. The registration fee payment deadline is Wednesday, September 24, 2025.
13. The health insurance waiver deadline is Sunday, September 14, 2025.
14. UCSD Move-In Day Fall 2025 is from Wednesday, September 17, to Sunday, September 21, 2025.
15. The notification deadline for students not attending is Friday, September 19, 2025.
16. UC San Diego Fall 2025 Quarter begins on Monday, September 22, 2025.
17. UCSD Fall 2025 classes start on Thursday, September 25, 2025. It is the first day of classes for UC San Diego students.
18. The late registration fee deadline is Monday, September 29, 2025.
19. The first day of classes is Thursday, September 25, 2025.
20. The late health insurance waiver deadline is Saturday, September 20, 2025.
21. Automatic wait lists end on Thursday, October 9, 2025, according UCSD Academic Calendar 2025-2026.
22. The deadline to add/re-enroll in classes is Friday, October 10, 2025.
23. The part-time status deadline for undergraduates is Friday, October 10, 2025.
24. The leave of absence deadline for graduate students is Friday, October 10, 2025.
25. The fifteenth day of instruction is Wednesday, October 15, 2025.
26. The master’s candidacy filing deadline is Friday, October 17, 2025.
27. The deadline to drop/withdraw without a “W” grade is Friday, October 24, 2025.
28. The deadline to change units is Friday, November 7, 2025.
29. The deadline to change grading options is Friday, November 7, 2025.
30. The deadline for undergraduates to drop/withdraw with a “W” grade is Friday, November 7, 2025.
31. Veterans Day holiday is Tuesday, November 11, 2025.
32. UCSD Thanksgiving break is from Thursday, November 27, to Friday, November 28, 2025, according to the UCSD holiday schedule.
33. The deadline for graduate students to drop/withdraw with a “W” grade is Monday, December 1, 2025.
34. The change units deadline for graduate students is Friday, December 5, 2025.
35. Fall 2025 classes end on Friday, December 5, 2025.
36. UCSD Fall 2025 Final exams (Finals week) are daily from Saturday, December 6, through Saturday, December 13, 2025.
37. The Grade Incomplete removal deadline is Saturday, December 13, 2025.
38. The final degree form deadline for graduate students is Friday, December 12, 2025.
39. The Fall 2025 Quarter ends on Saturday, December 13, 2025.
40. UCSD winter break 2025 is from Sunday, December 14, 2025, to Sunday, January 4, 2026. Christmas break 2025 is from Wednesday, December 24, to Thursday, December 25, 2025. The New Year holiday is from Wednesday, December 31, 2025, to Thursday, January 1, 2026.
41. The request for an Incomplete grade deadline is Monday, December 15, 2025, according UCSD Academic Calendar 2025.
42. Grades will be available on TritonLink on Thursday, December 18, 2025.

UCSD Academic Calendar Winter 2026

The UCSD Academic Calendar for winter 2026 begins on Friday, January 2, 2026, and ends on Saturday, March 21, 2026.

1. The deadline to enter holds is Tuesday, November 4, 2025, and becomes effective on Monday, November 10, 2025.
2. The Winter 2026 Schedule of Classes and enrollment appointments will be available on Wednesday, November 5, 2025.
3. Enrollment begins for continuing students on Monday, November 10, 2025.
4. Wait Lists Open on Monday, November 17, 2025, according UCSD Academic Calendar 2025-2026.
5. Fee payment holds become effective on Saturday, November 22, 2025.
6. The readmission deadline for undergraduates is Saturday, November 1, 2025.
7. The billing statement becomes available on TritonPay on Wednesday, December 3, 2025.
8. The registration fee payment deadline is Friday, December 19, 2025.
9. The health insurance waiver deadline is Sunday, December 14, 2025.
10. The notification deadline for students not attending is Friday, December 12, 2025.
11. UCSD Winter Quarter 2026 begins on Friday, January 2, 2026.
12. The late registration fee deadline is Wednesday, January 7, 2026.
13. UCSD Winter 2026 classes start on Monday, January 5, 2026. This is the first day of classes in 2026 for UC San Diego students.
14. The late health insurance waiver deadline is Saturday, December 20, 2025.
15. Automatic wait lists end on Thursday, January 15, 2026, according UCSD Academic Calendar 2026.
16. The deadline to add/re-enroll in classes is Friday, January 16, 2026.
17. The part-time status deadline for undergraduates is Friday, January 16, 2026.
18. The leave of absence deadline for graduate students is Friday, January 16, 2026.
19. Martin Luther King, Jr. Holiday is Monday, January 19, 2026, according to the UCSD holiday calendar.
20. The master’s candidacy filing deadline is Friday, January 23, 2026.
21. The Fifteenth day of instruction is Monday, January 26, 2026.
22. The deadline to drop/withdraw without a “W” grade is Friday, January 30, 2026.
23. The deadline to change units is Friday, February 13, 2026.
24. The deadline to change grading options is Friday, February 13, 2026.
25. The deadline for undergraduates to drop/withdraw with a “W” grade is Friday, February 13, 2026.
26. Presidents’ Day Holiday is Monday, February 16, 2026.
27. The deadline for graduate students to drop/withdraw with a “W” grade is Friday, March 6, 2026.
28. The change units deadline for graduate students is Friday, March 13, 2026.
29. UCSD winter 2026 classes end on Friday, March 13, 2026.
30. Final Exams run from Saturday, March 14, to Saturday, March 21, 2026.
31. The Grade Incomplete removal deadline is Saturday, March 21, 2026.
32. The final degree form deadline for graduate students is Friday, March 20, 2026.
33. The winter quarter ends (diploma date) on Saturday, March 21, 2026, and UCSD Spring Break begins and end before the beginning of the Spring quarter according UCSD Academic Calendar.
34. The request for an Incomplete grade deadline is Monday, March 23, 2026.
35. Winter 2026 grades will be available on TritonLink on Thursday, March 26, 2026.

UCSD Academic Calendar Spring 2026

The UCSD Academic Calendar for Spring 2026 has important dates and deadlines for the Quarter. The quarter begins on Wednesday, March 25, 2026 and ends on Friday, June 12, 2026.

1. The deadline to enter holds is Thursday, February 5, 2026, and becomes effective on Saturday, February 14, 2026.
2. The Schedule of Classes and enrollment appointments will be available on Friday, February 6, 2026.
3. Enrollment begins for continuing students on Saturday, February 14, 2026.
4. Wait Lists Open on Monday, February 23, 2026.
5. Fee payment holds become effective on Saturday, February 21, 2026.
6. The readmission deadline for undergraduates is Sunday, February 1, 2026.
7. The billing statement becomes available on TritonPay on Wednesday, March 4, 2026.
8. The registration fee payment deadline is Friday, March 20, 2026.
9. The health insurance waiver deadline is Saturday, March 14, 2026.
10. The notification deadline for students not attending is Friday, March 20, 2026.
11. UCSD Spring Quarter 2026 begins on Wednesday, March 25, 2026, according UCSD Academic Calendar 2025-2026.
12. The late registration fee deadline is Monday, March 30, 2026.
13. The first day of classes is Monday, March 30, 2026.
14. The late health insurance waiver deadline is Friday, March 20, 2026.
15. César Chávez Holiday is Friday, March 27, 2026.
16. UCSD Spring 2026 classes start on Monday, March 30, 2026.
17. Automatic wait lists end on Thursday, April 9, 2026.
18. The deadline to add/re-enroll in classes is Friday, April 10, 2026.
19. The part-time status deadline for undergraduates is Friday, April 10, 2026.
20. The leave of absence deadline for graduate students is Friday, April 10, 2026.
21. The master’s candidacy filing deadline is Friday, April 17, 2026.
22. The Fifteenth day of instruction is Friday, April 17, 2026.
23. The deadline to drop/withdraw without a “W” grade is Friday, April 24, 2026.
24. The deadline to change units is Friday, May 8, 2026.
25. The deadline to change grading options is Friday, May 8, 2026.
26. The deadline for undergraduates to drop/withdraw with a “W” grade is Friday, May 8, 2026.
27. Memorial Day observance is Monday, May 25, 2026.
28. The deadline for graduate students to drop/withdraw with a “W” grade is Friday, May 29, 2026.
29. The change units deadline for graduate students is Friday, June 5, 2026.
30. UCSD Spring 2026 classes end on Friday, June 5, 2026.
31. Final Exams are from Saturday, June 6, 2026, to Friday, June 12, 2026.
32. Finals week runs from Saturday, June 6, to Friday, June 12, 2026.
33. The Grade Incomplete removal deadline is Friday, June 12, 2026.
34. The final degree form deadline for graduate students is Friday, June 12, 2026.
35. The Spring Quarter 2026 ends on Friday, June 12, 2026, according UCSD Academic Calendar 2025-2026.
36. UCSD Graduation and Commencement programs are on Saturday, June 13, and Sunday, June 14, 2026.
37. The request for an Incomplete grade deadline is Monday, June 15, 2026.
38. Grades will be available on TritonLink on Thursday, June 18, 2026.

UCSD Academic Calendar 2025–2026 PDF

The University of California, San Diego (UCSD) follows a quarterly academic schedule for Fall 2025, Winter 2026, and Spring 2026. Key dates include enrollment periods, fee deadlines, class start/end dates, finals weeks, and grading timelines. Highlights for undergraduates and graduates include:

• Fall 2025: Classes begin September 25, 2025, with finals ending December 13, 2025.
• Winter 2026: Instruction starts January 5, 2026, concluding with finals by March 21, 2026.
• Spring 2026: Courses run from March 30 to June 12, 2026, including finals week.

The official UCSD academic calendar is managed by the Registrar’s Office and can be accessed in two ways:

1. Online: Visit the UCSD Registrar’s Academic Calendar page for an interactive, up-to-date schedule.
2. PDF Download: A printable PDF version is typically available on the Registrar’s website under the Calendars & Deadlines section.

For students, the calendar is also integrated into TritonLink (tritonlink.ucsd.edu), UCSD’s student portal, where personalized deadlines and enrollment tools are provided.

Note: Always verify critical dates (e.g., registration, fee payments, withdrawal deadlines) directly through UCSD’s official platforms, as adjustments may occur.