SF Bay slips -- I would say that now is as good time as any to change slips. Each marina has it's good and not so good points - important to consider all the options. Like:
1. time/distance from home.
2. Conditions of the marina slip/docks/parking/shower/bathrooms and the management rules. What kind of work do they NOT allow in your slip? Is there a boat yard close by? Can you overnight in your boat a few nights per week at least w/o becoming a live aboard? Security? Pumpout for black water?
3. If you are planning a lot of boat rework - a source of marine parts / supplies close to your slip will save you lots of time. Seems that I'm always short a screw/nut etc to finish up the project.
Yesterday, someone was taking their boat from the Svendsen's work slips in Alameda Marina to his Emeryville slip - it was nice and sunny with a light wind - and he commented that it is foggy and cold much of the time the Emeryville area.
I also have the Svendsen's warehouse and chandlery within a short walk - plus Svendsen's Boat yard, Blue Pelican Consignment shop, fuel at Jack London Square etc. Security is card controlled gates along Clement Avenue and the marina is fully side fenced - so you don't have to go through dock gates all the time between your car and the boat- and they have a night watch/patrol guard.
The down side is that I'm 1 hour motor to the entrance of the esturay and 2 hours from home... there isn't a lot of "fancy" stores or yacht clubs w/o a long walk or short drive.
I have been to a few other Marina's in the SF Bay -
San Leandro - always open slips - 2 mile channel to the south bay - SLYC nice folks - we use the Marina for our Rondy.. 3 hours from end of channel to the Bay Bridge - assuming your aren't fighting opposite currents
Petaluma Marina - nice marina - but long way up the Petaluma river - must motor hours to reach north bay and more hours in a channel to get deeper water - great for a weekend event and power boats.
Clipper Yacht Harbor - big - lots of boats -fuel on the water - big shower/bathroom quite a walk from our rented slip - West Marine close by - windy when we were there all night long.
Pier 39 - Close to SF and the central bay - can be cold and surgy - Randy Leasure would be a good contact - no parking close by.
Brick Yard Cove - must drive through Richmond for access - surrounded by private homes with docks - near the central bay and Angel Island. Quite nice really.
I hope others in the SF Bay chime in with their observations.
Jay