Why is the land temperature high and the ocean temperature low in summer? Winter is the opposite.

Because the land absorbs and releases heat more easily than the ocean, when the sun shines in summer, the land temperature rises quickly and the ocean temperature is low, which will lead to the land temperature being higher than the sea surface, and vice versa.

Due to the difference of thermal properties between land and ocean, the ocean in the same latitude region heats up slowly in summer and cools down slowly in winter. Generally, the amount of clouds in the ocean is larger than that on land, and the wind speed is higher than that on land, so the temperature in the whole year is lower than that on land. Therefore, the temperate coastal areas are affected by the ocean, and the annual temperature is lower than that of the inland.

Extended data

Generally, the daily range in summer is greater than that in winter, but the highest daily range in middle and high latitudes appears in spring. In summer, the sun is too high at noon and long during the day, so the solar radiation is particularly strong and the temperature is high during the day. In the middle and high latitudes, the weather is clear in spring, the atmospheric transparency is good, the solar radiation is less weakened by the atmosphere during the day, and the thermal insulation effect of the ground atmosphere at night is poor.

Generally speaking, the higher the latitude, the lower the temperature. The higher the latitude, the smaller the height of the sun at noon, the less solar radiation it receives and the lower the temperature; In the northern hemisphere of 1 month, the higher the latitude, the shorter the day, the shorter the time to receive solar radiation and the lower the temperature.