In addition to the economy thing that everyone else has already pointed out (and is totally valid)
I think it's worth pointing out that in the northern hemisphere it's summer right now, so if that's where you're located there's a lot of people going on vacations and having parties right now.
My social circles aren't exactly rolling in it, but at any given time over the summer, there's still at least a couple people I know are the beach, camping, having a BBQ or bonfire, or hanging out at a pool somewhere on their downtime when they might have been at a bar or something otherwise.
If you live in a touristy area, yeah, that's the economy, bars should be booming there.
I remember a couple years ago on a whim a couple of friends and I decided to go to a bar that's usually packed with a line well out the door of people waiting to get it. But it just happened to be a holiday weekend so lots of people had other plans, and we got in no problem.