There’s a ton of raw data here. Not sure what you’re looking for specifically but if you look for it the vast majority of the data used for studies like this is public.

https://www.ncei.noaa.gov/products/international-comprehensi...

related: I like to scare myself with the nice graphics of daily global sea surface temperature from the Climate Change Institute at the University of Maine.

https://climatereanalyzer.org/clim/sst_daily/?dm_id=world2

https://www.ncei.noaa.gov/products/optimum-interpolation-sst

Politely ask the scientists behind the studies for it. Most will respond.

go find it and analyze it and publish your findings

until then, you can read the papers of scientists who have analyzed it and published their findings

Why would the raw data be useful to you? Do you have the skills and training to process and interpret it?

Oh look, another brand new account just asking questions.

Wouldn’t we all