Originally Posted by cyclezealot
I have done lots of San Diego winter cycling. It is a pretty nice climate. You will have the exception when you take off at 7:30 am and it is around 45. That plus the fog is a pretty chilly downhill.
I have an earlier version of this jacket. It is ok normally. On the coldest of mornings you might need to have really good gloves, warm socks, and a warm underall t shirt, under your jersey. But , since it is usually 70 by noon, you need be able to fit all this stuff in your jersey pockets.
But, then maybe I am more warm blooded than most.
I'm right along the coast so I know what you mean about the fog. This morning on my ride it was 62 degrees and foggy, but with that cold coastal wind it felt like alot cooler.
Last winter the coldest I rode in was the high 30s. Within 15 minutes I was shedding layers as when it gets that cold it's always clear as a bell so the sun warms things up fast. It's the foggy, windy, sunless mornings where I get the coldest and could use a jacket to keep the wind out.