In order to have a smooth start and to be able to concentrate on your studies from the very first day on, you had better look for an accommodation in advance. You can do that while being still in your country of residence or you might want to come a few weeks before the start of the semester and stay in a hostel while searching for a place to life.
As a student in Bremerhaven, you have different options of accommodation.
For example, you can rent a room in a dormitory for students. These rooms are usually furnished and close to the University. The student dormitories in Bremen and Bremerhaven are organized by the “Studierendenwerk Bremen”. In order to rent a room, you need to apply for it by using this online form.

Accommodation in Bremerhaven | Studierendenwerk Bremen (stw-bremen.de)
For general requests please contact
+49 421 22 01 - 1 01 29 or
wohnraumvermittlung@stw-bremen.de
Another option is to rent a room in a shared apartment (Wohngemeinschaft/ WG) where you live together with other students in an ordinary apartment and share the costs. This is very popular with local and international students, as you get the opportunity to get to know local habits and culture as well as being part of the local students’ scene.
AStA der Hochschule Bremerhaven
www.astaonline.de
WG-gesucht (shared apartments)
www.wg-gesucht.de
Finally, of course, you can rent your own apartment offered by a private landlord or a specialized housing company. Usually, these apartments are not furnished, but bigger than ordinary student rooms. If you are interested in this option, the International Office can provide you with useful contacts.