The convention itself is Monday thru Thursday Jul 25-28.  I would guess the weekend of Friday July 22 Sat 23th and Sunday 24th will be full of newspeople and various bloviators getting in and settled and meeting and of course bloviating.
Crowded, but in my experience Dems like sex as much as the GOP, maybe a bit more or at least they admit it more.

First, if you don't already have a hotel booked, you're probably out of luck since most hotels in town are already full. I haven't seen any uptick in the number of ads posted on the Philly board, which may mean that touring ladies may be staying away because of the lack of hotel space and the higher costs. Curious whether the local ladies plan to up their game while the Dems are in town.