Hi Fortunato -- I live 40 miles north of SF but don't plan to go to The City this weekend. There's a Scots/Irish session on Sunday in my neighborhood, in the town of Cotati, Sonoma County. If that's your thing and you have wheels, you might consider it.
I'm surprised that none of our Bay Area members have responded: Chanteyranger, Radriano, Dave Swan... you might try PMs. I think there's a session at the Starry Plough in Berkeley on Sunday, but I'm not sure.