Forewarned is forearmed, eh?
With dshorwich's report in mind & expectations adjusted accordingly, my buddy and I had a very pleasant, chilly, and murky dive at Lobos today.
It was sunny when we arrived and the water was glassy with a minor swell. The kelp has grown noticably since my March 17'th dive but is still easy to navigate. We swam out on the surface 'till even with the second set of rocks and as we neared the bottom in about 35 feet of water I noticed the visibility increase from 5-10' to about 15'. By the time we reached hole in the wall it may have been a little better---good enough to maintain buddy contact, but nothing to brag about. My computer logged 45F but runs 3 to 5 degrees cool.
When we surfaced 45 minutes later a cold wind had kicked up and a couple of levels of clouds were competing to hide the sun. The surface was choppy and the swell had increased a bit. My wetsuit clad buddy was chilled and it had been too nice a dive to spoil with an uncomfortable second, so we motored back to the sunny bay area content.