Actual ocean surface temperatures [SST] on August 1, 2023 from the ECMWF HRES weather forecasting model [ weathermodels.com ] shows very warm waters well in excess of 28°C over a large area of the Tropical Atlantic and over 30°C in the Gulf of Mexico.

Weather models that are coupled to the ocean are capable of resolving the diurnal variations of the ocean surface. That includes ECMWF EPS and NOAA GEFS. So, if we take a climatological comparison at 12z, it may be slightly different than 00z in some parts of the world. I like using the NWP based SSTs since the OISSTv2 algorithms are based upon satellite retrievals and averaging that is less sophisticated than the NWP data assimilation schemes. Also, you can visualizing the forecasts going through 1 or 2 weeks.