Breakwater can be a fun dive, but it can be some of the lesser viz. If you get good luck in terms of the swell (check Chuck's links from his site) then I'd recommend going for something a little more open ocean exposed so you get clearer viz.
Lover's 3 is a really nice calm dive on the right day, and you don't ever get too deep. There's a good chance of swimming with harbor seals there. Reasonably easy entry with nothing but a few steep steps to contend with. Plus it's an out and back dive along a north/south line...easy nav among patches of reef and sand.
Butterfly House is fairly exposed, but on a calm day, it's a blast. Another good place to see seals, and a nice kelp forest. Make sure you turn around in time so you can get back toward beach and out from under the kelp with plenty of air. Surfacing in kelp forests is not fun
This is a dive for a calm day because it's exposed.
Monastery looms very large and people talk about its dangers quite a bit, but I have only been there on calm days, and it really isn't a big deal on very calm days (in my limited experience under very good conditions, YMMV, I'm not recommending anything, etc, etc
). North Monastery is probably the best dive site I have done in the area. Stay well within your own safety limits, and make your own decisions because it can definitely be really dangerous any day of the year. But if the swell says 3-4 feet, I'd go have a look so you at least know what folks are talking about. Beautiful stuff to see anywhere from 20 to 2000 feet
This will probably be some of the best visibility on any given day.
Have a lot of fun and be safe! Remember to check out the small critters. The nudibranchs in Monterey are just awesome.
Gregg