香港天文台在新年当天发布今冬首份寒冷天气警告，预计周五市区最低气温将降至12摄氏度。受广东沿海冷锋影响，未来几天天气将转凉。新界地区气温可能更低，周六早上仍感寒冷。
香港天文台于周四下午4时20分发布今冬首份寒冷天气警告，正值新年当天。警告指出，一股冷锋正横扫广东沿海地区，将为香港带来未来几天的凉爽天气。周五市区最低气温预计约为12摄氏度（53.6华氏度），新界地区则可能低两三度。白天天气干燥，最高气温约17摄氏度，周六早上仍将寒冷。
天文台表示：“随着季风在下周初稍为减弱，气温将略为回升，但早上仍会凉爽。”此外，预计下周初将持续晴朗干燥天气。
天文台提醒市民在使用取暖器前确保安全，并将其远离易燃物，以防意外。
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12月26日星期五，首尔早晨气温骤降至零下11摄氏度，圣诞节次日韩国遭受严重寒潮袭击。韩国气象厅报告称，这是本季最低气温，江原道全境发布寒潮警报。预计白天最高气温达零下7至2摄氏度，全罗道及济州岛将有小雪或小雨。
香港周日早晨气温降至12摄氏度，受东北季风影响，预计将持续寒冷至周一。香港天文台表示，本周中后期东北季风将被东风气流取代，气温将升至周五的24摄氏度。周日气温范围为12至17摄氏度，并发出寒冷天气警告。
Delhi remains under a cold wave with dense fog and 'poor' air quality for a second day on January 5, prompting airline warnings for flight delays. The IMD forecasts a 2-3°C drop in minimum temperatures across northwest India over the next four days.
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A high-pressure system is dominating Havana's weather, with partly cloudy skies and low rain chances until Sunday. Starting Monday the 29th, an active front will increase cloud cover and bring intermittent showers. Temperatures will remain warm, with highs between 26 and 27°C.
Migratory high-pressure systems continue to influence Havana, bringing cloudy skies and cool temperatures from January 29 to February 4. North to northeast winds will carry abundant cloud cover from the sea, with possible showers in coastal areas.
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Hong Kong is approaching the winter flu season, but vaccination rates among most age groups remain below the 70 per cent threshold needed for herd immunity, a leading government medical adviser has warned. David Hui Shu-cheong on Saturday reminded the public to get vaccinated ahead of Lunar New Year, when social gatherings are frequent.