It's somewhat typical to have above-average sea surface temperatures (SST) in the North Pacific Ocean during La Nina.  You can see that here:

https://psl.noaa.gov/enso/compare/

If you click El Nino vs. La Nina and surface air temperatures, you can see the overall pattern you would expect.   

With that said, one of the major differences with the 'expected' pattern right now is that often SSTs will cool off the West Coast of the U.S. and that doesn't appear to be happening so far.