Opening a bank account as a foreigner can be a little bit challenging, as it often requires specific documents that may not be readily available during your first few weeks in Poland. Here are some typical documents required for opening a bank account:

1. Passport: a valid passport is generally a primary identification document that banks request to verify your identity and nationality.

2. Proof of Address in Poland: your rental agreement.

3. Student card or Letter of Enrollment.

4. Your Polish phone number.

It is important to research and communicate with different banks to understand their specific documentation requirements. Some banks may offer specific services tailored for international students or temporary residents, which may have different account opening procedures.