All Information about San Francisco
The high hills in the middle of San Francisco are responsible for about 20 percent difference in the amount of rainfall between various parts of the city. The hills also protect the eastern side of the city from the winds and cold weather of the Sunset District. Along with the Sunset District, Richmond is another neighborhood which is known to be one of the rainiest and coldest in the city.
The neighborhoods on the east side of the hills also experience more sun with an average of 260 of sunny days, and only 105 cloudy daysa year, and it's perfectly normal for one area of the city to be in complete fog while another is filled with sunlight. It's also perfectly normal for it to be in the 80s downtown and about 20 degrees lower on top of the hills. So, when heading out in San Francisco, you should dress in layers so you can be ready to face any type of weather.
The fact that San Francisco is surrounded on three sides by waters of the Pacific Ocean and the San Francisco Bay, and this has contributed widely to its climate. The cool currents of the Pacific Ocean moderate the temperatures in the Bay area and this is why there isn't a wide variation in temperatures between seasons and the weather remains pleasant all year long.
San Francisco has wet winters with mild temperatures that range from the mid-40s to the 50s and from the high 50s to the 60s. The vast majority, 80 percent of the city's annual 22 inches of rain falls during winter between the months of November and March with January accumulating the highest amount of rainfall and around 10 rainy days per month.
San Francisco does not get a lot of snow, and has only gotten snow ten times since recording started in 1852. The most recent snowfall that San Francisco has known was in 1976. There can be some snow accumulations in the nearby mountains of Mt. Diablo and Mt. Hamilton, and some occasional flurries that tend to melt on contact with the ground. Though there is no snow or ice in San Francisco, there can be very wet conditions during the winter, so you should definitely be careful when driving, especially on the hills.
Summers in San Francisco are warm and dry and are the perfect time to visit the city. Temperatures are pleasant in the high 60s and low 70s from June until November. San Francisco has the lowest minimum, maximum and mean summer temperatures for the months of June, July and August. San Francisco also has characteristic winds that blow during the summer which can make some places chillier than others, and make having a jacket indispensable. The city is also known for its fog in the mornings that persists until mid-morning until the sun burns through it. After the fog lifts, you should check out the spectacularGolden Gate Bridge and take some pictures.
Spring and fall seasons in San Francisco are among the most pleasant to go out in, with warm temperatures in the 60s in the spring and 70s during the fall. There is usually a lot of sunshine during this time, and low levels of rainfall, so it's the perfect time to go visit the sites such as the Coit Tower and Alcatraz Island.