Key Semester Dates

Source: https://www.uni-bonn.de/en/studying/during-your-studies/key-semester-dates Parent: https://www.uni-bonn.de/en/studying/consultation-and-service/student-registry/re-registration

As is common at many universities, the academic year at the University of Bonn is divided into two half-year semesters. The winter semester actually begins in autumn, while the summer semester begins in the spring. The formal semester start dates are not the same as the lecture periods, which change from year to year.

Academic Calendar

Semester start

Winter semester

October 1 – March 31\

Summer semester

April 1 – September 30\

Lecture Periods and Deadlines

Summer semester 2026

Lecture period

April 14  - July 24, 2026

Dies Academicus

May 20, 2026

Lecture-free period (Pentecost break)

May 25 - May 29, 2026

Unifest1

July 11, 2026

Winter semester 2026/27

Lecture period\

October 12, 2026 - February 05, 2027

First-Semester-Student's Welcome2

October ??, 2026

Opening of the academic year3

October 19, 2026

Dies Academicus

December 02, 2026

Lecture-free period (Christmas break)

December 24, 2026 - January 6, 2027

Re-registration deadlines

Winter semester

August, 31

Summer semester

February, 28/29

Lecture periods until 2028

Summer semester 2027\ April 05, 2027 – July 16, 2027

Winter semester 2027/28\ October 11, 2027 – February 04, 2028

Summer semester 2028\ April 17, 2028 – July 28, 2028

Lecture periods for the following years can be found on the\ website of the Ministry of Culture and Science of the State of North Rhine-Westphalia4.

Willkommen an der Uni Bonn. Welcome at the University of Bonn.

Bild © Universität Bonn / YouTube

All application, admission and enrollment deadlines can be found in the Application Deadlines5 section.

Links

1. https://www.uni-bonn.de/en/university/university-life/events/unifest
2. https://www.uni-bonn.de/en/university/university-life/events/first-semester-students-welcome/first-semester-students-welcome-2025
3. https://www.uni-bonn.de/en/university/university-life/events/opening-of-the-academic-year/eroeffnung-des-akademischen-jahres
4. https://www.mkw.nrw/service/vorlesungszeiten
5. https://www.uni-bonn.de/en/studying/application-admission-and-enrollment/application-deadlines