SAN DIEGO San Diego has a diverse landscape of western vistas, beaches, cliffs, canyons, mountains, military bases, parks, hotels and neighborhoods. The city lies just north of Mexico, and is bordered by the Pacific Ocean, the Anza -Borrego Desert and the Laguna Mountains. The region averages 323 days of near-perfect weather, and hold an average year-round temperature of 72 degrees. The San Diego metropolitan area has over 2.9 million people and is the second largest city in California and the eighth largest in the United States. The City offers a no cost permit process, free public properties, film-friendly local government & communities, and discounted Police services. CLIMATE San Diego predominantly has a semi-arid warm steppe climate and locals enjoy mild, sunny weather throughout the year. Average monthly temperatures range from about 57 Fahrenheit (14 °C) in January to 72 Fahrenheit (22 °C) in July, although late summer and early autumn are typically the hottest times of the year. Climate in the San Diego area often varies dramatically over short geographical distances, due to the city's topography (the Bay, and the numerous hills, mountains, and canyons): frequently, particularly during the "May gray / June gloom" period, a thick "marine layer" cloud cover will keep the air cool and damp within a few miles of the coast, but will yield to bright cloudless sunshine between about 5 and 15 miles inland -- the cities of El Cajon and Santee for example, rarely experience the cloud cover. This phenomenon is known as micro-climate.