Sea Breeze 海⻛


There are other local effects that can cause the weather to vary from the forecast. For example, on bright summer days when the wind is light in the morning, there’s a good chance of a sea breeze later on in the day. A sea breeze is a thermal wind generated by the temperature difference between the land and the sea. As the land warms up throughout the day, warm air rises up from the land. This air is replaced by cooler air drawn off the sea which may generate a brisk onshore wind, either in the same or a different direction to that forecast. This effect tends to peak by mid-afternoon and can reach a good Force 4.


还有其他⼀些局地效应，也会导致实际天⽓与预报有所不同。例如，在晴朗的夏⽇清晨，如 果⻛⼒较弱，那么当天晚些时候出现海⻛的可能性很⼤。海⻛是⼀种由陆地与海洋温度差产 ⽣的热⼒⻛。随着⽩天陆地逐渐升温，暖空⽓上升，由海⾯吹来的冷空⽓补充，这可能会形 成⼀股较强的向岸⻛。其⻛向可能与天⽓预报⼀致，也可能不同。这种现象通常在下午中期 达到最强，⻛⼒可增强⾄四级⻛。


The presence of strong sunshine is not a guarantee of a sea breeze, as even a light local wind can sometimes destroy this effect. A tell-tale sign that a sea breeze is on its way is the formation of light, fluffy clouds over the coast. This means that hot air is rising and condensing.


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