The City and County of San Francisco is the fourth most populous city in California and the 14th most populous city in the United States, with a 2007 estimated population of 764,976. Among the most densely populated cities in the country, San Francisco is part of the San Francisco Bay Area metropolitan area, which is home to more than 7.2 million people. The city is located at the tip of the San Francisco Peninsula, with the Pacific Ocean to the west, San Francisco Bay to the east, and the Golden Gate to the north. San Francisco is a popular international tourist destination famous for its landmarks, including the Golden Gate Bridge, Alcatraz Island, the cable cars, Coit Tower, and Chinatown, its steep rolling hills, and its eclectic mix of Victorian and modern architecture. The city is also known for its diverse, cosmopolitan population, including large and long-established Asian American and LGBT communities.
Weather
| Local Weather by Season | |||
| Month | Avg High Temp | Avg Low Temp | Avg Rain (inches) |
| January | 57 | 46 | 5 |
| February | 60 | 48 | 3 |
| March | 61 | 49 | 3 |
| April | 63 | 50 | 1 |
| May | 64 | 51 | 1 |
| June | 66 | 53 | 0 |
| July | 66 | 54 | 0 |
| August | 67 | 55 | 0 |
| September | 70 | 56 | 0 |
| October | 69 | 55 | 1 |
| November | 64 | 51 | 3 |
| December | 57 | 47 | 4 |