When to go San Francisco ?
All seasons are good to go to San Francisco. Especially spring and fall, which are very mild, while summer is often cloudy. But ask yourself which festivities you want to attend: Chinese New Year, St. Patrick's Day, Gay Pride, the Mutant Float Race in the Bay, the street-food festival, the run along the Pacific or the Haight-Ashbury Hippie Fair... There is something for everyone!
The configuration of the San Francisco Bay explains an extremely variable and foggy climate. In the same day, it can go from a wonderful sun to a heavy fog. Generally, it is mild and humid, especially in the fall and spring. In all seasons, fog is likely to fall and the nights are always cool. Paradoxically, the weather in San Francisco is often the least beautiful in the summer, because the fog is particularly present.