The Pacific Ocean has heated up 3 to 8 degrees Fahrenheit above Average (which is a lot as of April/May 2026

In Both the Atlantic and Pacific Ocean currents are changing which is changing life a lot in the oceans of the Atlantic and Pacific ocean because of this. In the Pacific Ocean the upwelling currents along the California coast are either slowing down or stopping entirely which is changing the deep water coming up along the coast and enriching the life along the California coast in the Ocean.

 

So, this is one reason I have been studying the Younger Dryas era where the climate changed very quickly to a small ice age around 12,700 to 12,900 years ago and killed off all the megavauna like mammoths and giant Tree Sloths in the U.S. then as well as human beings below the Glaciers in places like New Mexico and Arizona then. At that time the deserts weren't there like now. So, all this changed in that area which was once lush with large lakes and mammoths and Giant Tree sloths co-existing with humans from 23,000 to about 13,000 years ago.

 

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As of April/May 2026, the Pacific Ocean off California is experiencing an intense, record-breaking marine heatwave, with surface temperatures running 3 to 8 degrees Fahrenheit (

to

) above average. This, following a major, long-lasting marine heatwave dubbed "[NEP25A]" that began in 2025, represents some of the warmest ocean conditions in 100 years of records. 

Key Details on California Ocean Heating (2026):

• Intense Coastal Warming: Readings from the [Scripps Pier] in La Jolla showed sea surface temperatures as high as 68.5°F, which is 7.7°F above average for that date, with the seafloor also setting records.
• Record-Breaking Heatwave: The current, massive marine heatwave is impacting the entire coast from Mexico to San Francisco, creating "exceptional" conditions.
• Regional Impact: The warming is significantly impacting marine ecosystems (similar to the 2014-2015 "Blob"), potentially causing toxic algal blooms, fish migration shifts, and reducing survival rates for seabirds.
• Long-Term Trends: Coastal ocean temperatures have been rising for decades, with faster acceleration since the 1970s, at rates ranging from 0.2°F to 0.6°F per decade at specific locations like [La Jolla] and [Pacific Grove]. 

This recent surge in temperature is among the highest ever recorded in the region. 

• The California Current Marine Heatwave Tracker - Blobtracker

  Apr 14, 2026 — Large portions of the coastal region along the US west coast, particularly off central and southern California, continue to be imp...

  

  

  NOAA (.gov)
• An intense marine heat wave has California in its crosshairs, with impacts set for land and sea

  Apr 22, 2026 — The marine heat wave is especially intense from the Pacific coast of Mexico north into Southern California and all the way up to S...

  

  

  CNN
• West Coast Waters Experiencing Another Large Marine Heatwave

  Mar 3, 2026 — Third Time as Warm ... That's almost a half-degree warmer than ever before. Past marine heatwaves shook up marine ecosystems that ...

  

  

  NOAA Fisheries (.gov)

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