The oceans will rise, flooding some Coastlines.
The temperature obviously varies considerably from the poles to the equator but the average temperature of the ocean surface waters is about 17 degrees Celsius (62.6 degrees Fahrenheit). (from related link) 20 degrees Fahrenheit
The temperature of the ocean at the surface is not constant across all oceans. For example, the Arctic Ocean will have a much colder surface temperature than the Pacific.
Global warming is the increase in the average temperature of Earth's near-surface air and oceans since the mid-20th century.
The Earth has a diameter of about 12,742 kilometers, a blue and white color when viewed from space due to its oceans and clouds, and an average surface temperature of about 15 degrees Celsius.
The planet with an average surface temperature of 14.6°C is Earth.
moderates changes in temperature on the surface
water in oceans, lakes, rivers and streams
It is the average height of the surface of the oceans of the world.
The average surface temperature of Jupiter is -234 degrees Fahrenheit.
54 deg. Fahrenheit
59-62.9 f