Oceanside, California, is a coastal city located in San Diego County. Known for its beautiful beaches, it offers a variety of outdoor activities such as surfing, swimming, and fishing. The city features a vibrant downtown area with shops, restaurants, and cultural attractions, including the historic Oceanside Pier. The climate in Oceanside is typically mild, with warm summers and cool winters, making it a popular destination year-round. The city is also home to the California Surf Museum and hosts various events, including the annual Oceanside Harbor Days, celebrating the local maritime culture.