In my experience, traditionally, the market can slow up a bit from July 4th through Labor day.
Many motivated buyers were out there looking in the Spring, especially those who wanted to be settled in for school in Sept. By now, many of them have bought....and current lookers/ buyers might get a bit "relaxed" on those warm, sunny summer afternoons and want to visit the shore instead of viewing homes.
Now, this doesn't mean there aren't buyers out there, becasue there are..... each area's activity can vary, so don't give up hope quite yet!
However.............you really need to make sure you're priced right on the mark now, as the buyers will stand back and wait for that "signal" from the sellers that they are serious about selling.
The "signal" is a home that is priced at, or slightly below, market value and the competition.