What is the temperature like in San Francisco in mid-to-late October?

San Francisco in summer is shrouded in icy sea fog, with the average high temperature ranging from 15 to 21 degrees Celsius and the low temperature from 10 to 12 degrees Celsius. Winter temperatures are mild, with high temperatures ranging from 12 to 15 degrees Celsius and low temperatures from 7 to 10 degrees Celsius. Spring and autumn are transitional seasons, and the hottest weather often occurs at this time.