A relatively dry and mild March

A relatively dry and mild March 
The northeast monsoon over the coast of Guangdong was gradually replaced by a relatively dry easterly airstream on March 8. While it was mainly cloudy with one or two light rain patches that morning, there were sunny periods that afternoon and in the following two days. With a band of clouds covering the coast of Guangdong, the weather became mainly cloudy from March 11 to 12, with one or two rain patches on March 12. Winds were weak over the coast of Guangdong on March 13. Locally, it was hot with sunny periods. With a humid easterly airstream affecting the coast of Guangdong the next day, the weather turned mainly cloudy with one or two light rain patches. Visibility was rather low in some areas and once fell to around 1 000 metres in the harbour.
 
With a trough of low pressure over inland Guangdong developing into a cold front and moving across the coastal areas on March 15, heavy showers and severe squally thunderstorms ahead of the cold front brought around 20 millimetres of rainfall and violent gusts to many places in Hong Kong that afternoon. Hail was even reported at Tai Po. Under the influence of the associated northeast monsoon, the weather became drier and cooler in the following six days. There were sunny periods on March 16. Affected by a band of clouds covering southern China, it became cloudier with one or two rain patches on the next two days. With the departure of the band of clouds and the influence of an anticyclone aloft, the weather turned fine and dry from March 19 to 25. Under the influence of a southerly airstream, the weather became relatively humid with rising temperatures from March 26 to 28. There were fog patches and the weather was hot on March 28. The temperatures at the Observatory rose to a maximum of 29.4 degrees that afternoon, the highest of the month. A cold front moved across the coast of southern China that evening and brought a few rain patches and significantly cooler weather to Hong Kong that night and the following two days. Under the persistent influence of the associated northeast monsoon, the last two days of the month remained cold in the morning.
 
There was no tropical cyclone over the South China Sea and the western North Pacific in March 2025.
 
Details of issuance and cancellation of various warnings/signals in the month are summarised in Table 1. Monthly meteorological figures and departures from normal for March are tabulated in Table 2.
Issued at HKT 15:00

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