Misha,
Might be a bit late on this reply but maybe it will help. While some of the best days of fishing the salt I have ever had were in the surf, I don't like fishing the surf but here's a few things I have learned after 10 years of doing so.
Surf conditions for fishing the surf is a lot like surf conditions for surfing-it changes as tides come in and go out. Bottom structure beyond the surf determine what the conditions will be where you will be fishing, in the suds. With that said, don't even try it on rough days when the water is full of surfers.
Recon the beach at low tides for holes, troughs, sloughs or any thing other than a flat bottom. Fish those as tides come in or go out. It's amazing how many fish can be caught out of a pot hole in the surf.
The biggest concentration of fish is in or just outside the breakers/suds. So, sometimes you can cast to fish from the sand. I've caught many flounder in 6 to 12 inches of water in the surf.
Make cast parallel to the suds.
Fish the surf in front of sand flea colonies.
Watch for bait movement, breaking fish or birds working the water.....sure bet.
If you're in waders, use a rain jacket over the boots with at least one snug belt. If there are few people around to help pull you out if you go down, wear an auto inflate PFD. If you're fishing at night, have a buddy and put a glow stick on you so you can be found if you go down.
If you have an inlet, fish just inside of it and fish any tidal rips.
Most of all, be safe.
John