Please wear a flower in your hair, but you will need a jacket as well.
Even though I forgot to buy a t-shirt that proves it, I heart SF. this city will warm your heart and belly one minute, and chill you to the bone the next. but the cold's not stopping anyone, there are so many unique little pockets to explore and sights to see, you just gotta keep on keepin on. of all of our adventures my favorites were alcatraz and the mission (i could have stayed there all day sampling different taquerias).
we saw lots of bleu et vert, here's just a sampling from that little city by the sea.