I want to travel next month and I want to know the weather in Hong Kong next month.

December and February are winter in Hong Kong. It is cool and dry, with a lot of clouds and sometimes cold winds, and the temperature in urban areas can even drop below 1 degrees Celsius. The average temperature is 12 to 2 degrees Celsius. It is suggested to check the weather forecast of Hong Kong within 7 days before departure:

/China/Plan-Your-Trip/Know-Hong Kong/Climate.jsp.