原来这是一种自然现象，气象或航海运动中称sea breeze. 基本上夏天每天到最热的时候，海风就吹过来了。以下是google 来的。A sea breeze or onshore breeze is any wind that blows from a large body of water toward or onto a landmass; it develops due to differences in air pressure created by the differing heat capacities of water and dry land. As such, sea breezes are more localised than prevailing winds. Because land absorbs solar radiation far more quickly than water, a sea breeze is a common occurrence along coasts after sunrise。
