Answers from Our Experts (1)
If you visit San Francisco during the summer, be prepared to hear people quote Mark Twain: “The coldest winter I ever spent was summer in San Francisco.” Mark Twain never actually said it, but that doesn’t mean it isn’t true. San Francisco is often foggiest in June, leaving bewildered tourists shivering and wondering why they came to California for summer vacation. To bask in warm, sunny weather, come to The St. Regis San Francisco in September or October. Fall is definitely the best time to visit. There’s not much rain or fog. Days are sunny and warm, and nights are clear and mild. Winter months are obviously the coldest — and the rainiest.