San Francisco is a city on a bay in northern California. Abbasi Travels can search flights for you.
It is mild all year. Summers are often cool and foggy, and autumn is often the warmest time. Figures and seasons differ between sources, so treat this as a rough guide.
Whether you need a visa depends on your passport and on how long you stay. Open our visa check to see what we have researched, and always confirm on the official government website before you book.