One of the things that takes getting used to living in the Bay Area is the many microclimates. Temperatures and conditions can vary dramatically within a few miles.

I was deciding whether to head out to the Beach Chalet, a microbrewery and restaurant on the Pacific Ocean, on Sunday. They’ve got a great back yard with Adirondack chairs and live music. It’s a gorgeous place — on a sunny day. Unfortunately, it’s located in one of the foggiest parts of San Francisco.

Before trekking all the way to the other side of the city I wanted to know whether it was sunny there. Could social networking help?

I decided to post the question — to noone in particular — on Twitter:

Within 10 minutes, I had my answer:

Of course, this particular experiment is likely only to work this well this quickly in the Bay Area, where it’s easier to find a Twitter user than a newspaper reader.

How else could I find the answer? Google now has geo-coded Webcams in Google Earth. Find where you want to be and check to see if there’s a camera. Click and you’ll get your answer. In the case of the Beach Chalet, it’s often this: