Internship opportunities for physics majors are typically available at the beginning of the school year, but there are also year-round options depending on the organization. Many students find that summer internships are the most common, providing valuable experience and networking opportunities. Some companies may offer internships during the academic year, but these often require a flexible schedule. It's important for students to actively seek out and apply for internships early to maximize their chances. Overall, planning ahead is crucial for securing meaningful internship experiences in the field of physics.