Why places near the sea are cooler in summer and warmer in winter???

It takes longer for water to get heated up or to get cooled than land. During summer days the land near the sea gets heated up quickly but the seawater remains cool and thus cool breeze blowing from the sea reduces the heat in the adjoining land area. The reverse happens in winter. The land gets cooled quickly but the sea water remains warm and thus the lang gets warm breeze from the sea. But the land farther inside does not have this advantage. This accounts for the difference in the climatic condition.