The warmest ocean in the world is the Indian Ocean. Parts of the Indian Ocean exceed temperatures of 82 degrees Fahrenheit.
As the third largest ocean in the world, the Indian Ocean’s temperature is affected by several factors including the rivers that flow into it. The inflows of the Red Sea and Atlantic Ocean also play a part in the temperature of the water. The northern part of the ocean has an average surface temperature of 72 degrees Fahrenheit while the southern end sees temperatures as high as 82 F. While sections of the ocean are relatively warm, there are parts that are extremely cold. For instance, the belt between southern Africa and southwestern Australia is cold enough that icebergs form throughout the year.