Graph showing the daily sea surface temperature as reported by NOAA since 1982. It starts around 20,1 and has a lot of seasonal variation. But after 1995 a slow rising is visible. Before 2023 it averaged at 20.6. Now at 20.8 with a peak of 21.12 Monday 26th of February 2024
https://files.mastodon.social/media_attachments/files/112/005/292/552/767/290/original/dbc7e834103d8dbc.png