As a hiring manager, it wouldn't bother me if you told me that you aren't quite ready to interview just yet and that you would reach back out in a month or two.

As a hiring manager, it wouldn't bother me if you told me that you aren't quite ready to interview just yet and that you would reach back out in a month or two. I would say OK, no problem. The big risk is that the position might not be open in a month or two. That said, fast-growing startups and large startups often have evergreen positions, so that might be a small risk rather than a big one. My advice: tell the recruiter straight up that you're interested but that for several reasons you won't be available to interview until October. You don't need to go into those reasons.