Airspace communication help through SFO plz

[trafficinsight]

I'm still not completely convinced that the Bay Area is even populated. Every time that I have ever flown over it (~7-10 time over the last 3 years) it has been obscured by fog, low clouds, or I was IMC. When does the weather actually clear up to the point where I can make ground contact? I guess I have landed at Hayward once but the vis was so low that I could barely make out REILs from the departure end of the runway and we were in the poop at 400' AGL.

Nights and mornings this time of year are usually socked in (right now for instance) but it's usually gone by noon.

It's usually pretty decent weather through January or February and then it rains off and on until late may.