Yes this is hot. In direct sunlight I would find it uncomfortably hot, and would hopefully have some water if I was to wait around for half an hour or more.

Conversely I think nothing of going out in shorts and a t-shirt in 45-degrees.

79 is not hot for outdoor conditions in NYC. The "baking in the heat" bit works in August when it's in the 90s and swampy.

I grew up in Miami, live in NYC now, 79 feels insanely hot to me now. I'm sure there's some science to this, but it's probably either acclimation to the "average" temperature, or maybe differences in humidity?

Also every place in Miami has killer A/C, that probably factors in quite a bit.

Maybe also differences in wind? I'm guessing Miami gets a nice sea breeze much of the year. Things are likely very different in the urban geography of NYC, with wind tunnel effects in some places and stale air in others.

A lot depends on the humidity level. 79 with high humidity is brutal.

Anecdotally, one summer I drove from Vegas (103) to North Carolina (81) and I preferred the Vegas heat. Humidity is a huge factor.

In Texas... 79f outside while sitting in your central air conditioning, while laying on your large sectional sofa?

Maybe something about urban heat island affect made it hotter on the ground, closer to a "real" hot temperature?