Which effect can an ocean have on the climate

Tempature

Explanation:

The ocean cools and heats up slower then land so let's take NY in the US for an example a city in upstate NY is not near a body of water so the tempatures will be much hotter in the summer and colder in the winter now let's take NYC one of the biggest cities in the world it's on the coast and in the winter the water stores heat making the winter a littler warmer then upstate and the summers a little cooler then upstate