Chenghai is located in the subtropical zone, a subtropical monsoon climate, warm and pleasant, very hot short, a long frost-free period, the Four Seasons is not clear.

澄海区地处亚热带，属南亚热带季风气候，温暖宜人，酷热期短，无霜期长，四季不甚分明。

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The safety of the high-speed train is affected by the frost damage of the railway subgrade in China's north frozen soil zone.

随着列车速度的提高，我国北方的冻土地区铁路路基的冻害已经严重制约着高速列车的安全运营。

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