I wrote a blog a while back on low tide dinghy dockings, and this was focused on the really low tide screnario - absolutely no centerboard and minimal rudder, and how to get the boat to the dock in those conditions. You can't slow sail without a centerboard, so you need to do something different.
But that's the extreme case. Often, it's not quite that low, and so you have a few more options.
But let's take a quick detour (a parenthesis in Italian) and talk about tides. We use tide tables and graphs all of the time, including predicting when the Club will be closed because the water is too low for the rescue skiff to run.
Tides are extremely complex as they depend on a huge number of factors. The major factors are the gravitational effects of the sun and the moon, and so tide tables are based on observations over a period of time (maybe as much as 19 years) to see these effects in all of their combinations. Tide predictions are based primarily on these large scale astronomical forces, and they do not include significant yearly, monthly, and daily factors such as rainfall, runoff from rivers, even barometric pressure on a given day.
Tide tables give you an approximation only,but we do have information about how predictions are matching reality. The closest station which reports both predictions and reality is the Richmond Inner Harbor, and our website monitors it and reports the current difference between predicted and actual both in when the Club will be closed and in the Club Status (which you can click on in the Cal Sailing home page)....