上周末至本周初氣溫寒冷，天文台一度發出寒冷天氣警告，但氣溫今（21日）起有回升跡象。天文台指東北季候風持續影響本港，加上季候風補充影響，早晚時間會相當清涼。
根據天文台天氣預報，今起氣溫稍微回升，氣溫最高20度，但隨著東北季候風會在本週持續影響本港，明（22日）起氣溫會再度下降，局部地區低至9度，天氣普遍晴朗及乾燥。此外，受季候風補充影響，本週後期及下週初廣東沿岸早晚相當清涼，市區氣溫最低為約13度。
另外，今日凌晨時分，中國東南部近岸發生一次 3.6級地震，本港超過一百名市民報告天文台表示感到這次地震，震動維持數秒。根據天文台初步分析，本港的地震烈度為修訂麥加利地震烈度表的第III (三)度，即室內有感。類似小型貨車駛過的振動。
圖/資料來源：香港天文台
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