San Diego has the perfect climate, probably the most pleasant one in North America . With a 70.5 F average temperature, 280 days of sunshine and blue skies almost all year, it's the perfect climate to be outdoors. It also has enough world-class attractions to keep you busy during your stay, including the Gaslamp District, Old Town, Seaport Village, Coronado Island, Balboa Park, San Diego Zoo, Seaworld, Legoland and, of course, plenty of beautiful beaches.