Buoy in Florida Keys measures 101.1-degree water temperature
nbc-2.com
The Manatee Bay buoy in the Florida Keys recorded a sea surface temperature of 101.1 degrees at 6 p.m. on Monday, July 24.

It was already bad when the sea surface temperature was well over 90 degrees Fahrenheit last week, but...over 100?

https://nbc-2.com/weather/weather-blog/2023/07/25/buoy-in-florida-keys-measures-101-1-degree-water-temperature/ (this is the article linked above)

FYI that's hot tub hot, as this other article notes: https://www.nbcnews.com/news/weather/hot-tub-water-temperatures-florida-soar-100-degrees-stunning-experts-rcna96163

This might be record-breaking. In the worst sense possible.

(this is a repost of my own toot, with additional elaboration and minus hashtags)