Answer:
The warm surface water results in moist air and more rainfall.
Step-by-step explanation:
Coastal climates are characterized by greater humidity, usually a slightly warmer and more even temperature than, for example, inland climates. The coastal climate is also more stable over time and is characterized by cool summers and mild winters with only a small temperature difference between the seasons.
The reason for this climate is the proximity to the sea and its large bodies of water that bind heat energy. In winter, the sea works warming and in summer cooling. The humidity prevents really low temperatures because heat is released when the water vapor condenses.