Like the title says does low tide affect shark fishing like regular fishing.
It does in Palm Beach County....Incoming tide is when the hits start.... 
I think it really depends on location. I know from where we fish (half man-made channel and half flats) that when its lowtide half our fishing area is useless (only 2-4ft deep). I have still caught plenty of sharks on lowtide but I have come to a liking for my spots on incoming. Maybe someone can chime in from the same area you are fishing.
well we will find out in our spot this week coming up, cause its going to be dead low tide at 730pm tomarrow and we will be there trying to catch em. ill keep ya posted
DIRTY SOUTH SHARK HUNTERS
2012 1st place BLACKTIP CHALLENGE
2011 NO LIMIT TOURNAMENT CHAMPION 2nd year in a row
2010 BHC biggest hammerhead shark on 80 lb test
2010 NO LIMIT TOURNAMENT CHAMPION
2010 BHC 3rd and 5th place biggest shark
2010 april sharker of the month
2009-2010 Rookie of the year
just got back from fishing my spot with sand tiger and we got 2 bulls and 6 runs on dead low tide
DIRTY SOUTH SHARK HUNTERS
2012 1st place BLACKTIP CHALLENGE
2011 NO LIMIT TOURNAMENT CHAMPION 2nd year in a row
2010 BHC biggest hammerhead shark on 80 lb test
2010 NO LIMIT TOURNAMENT CHAMPION
2010 BHC 3rd and 5th place biggest shark
2010 april sharker of the month
2009-2010 Rookie of the year
TRU F@#KING THAT man,no bulls this year for me yet..... 
all the bulls we caught this year were all in our bay spot.. we havent caught one on the beach this year.
DIRTY SOUTH SHARK HUNTERS
2012 1st place BLACKTIP CHALLENGE
2011 NO LIMIT TOURNAMENT CHAMPION 2nd year in a row
2010 BHC biggest hammerhead shark on 80 lb test
2010 NO LIMIT TOURNAMENT CHAMPION
2010 BHC 3rd and 5th place biggest shark
2010 april sharker of the month
2009-2010 Rookie of the year