The start date for the summer semester in colleges varies depending on the institution. Here are some examples for summer semester start dates in 2025:

• Webster University (Leiden Campus): Summer undergraduate 8-week term and 4-week session 1 begin on June 2, 2025. The graduate 9-week summer term begins on May 26, 2025.

• University of Texas at Austin: The summer semester (including first term, second term, nine-week term, and summer term) starts on June 4, 2025.

• University College Utrecht: The summer term runs from May 26 to June 26, 2025.

• Community college example (College of Southern Maryland): Classes for the summer 7-week term as well as summer 15-week term begin on May 12, 2025.

Therefore, summer semester generally starts between mid-May and early June depending on the college. It is best to confirm with the specific college for their exact summer semester start date.