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Climate Change in Hong Kong - Extreme weather events

Climate Change in Hong Kong

<<Mean sea level

Extreme weather events

Sea surface temperature>>

Extreme precipitation events have become more frequent. The hourly rainfall record at the Hong Kong Observatory Headquarters used to be broken once every four decades in the past. However, the record was broken several times in the past few decades.

Hourly rainfall records at the Hong Kong Observatory Headquarters since 1885 (as at 12 Sep 2023)

Highest hourly rainfall records at the Hong Kong Observatory Headquarters (1885-2023)

 

» Highest hourly rainfall data

 

Over the last hundred years or so, the numbers of hot nights (days with a minimum temperature of 28℃ or above) and very hot days (days with a maximum temperature of 33℃ or above) in Hong Kong have increased while the number of cold days (days with a minimum temperature of 12℃ or below) has decreased.

Changes in the annual number of hot nights, very hot days and cold days in Hong Kong

Changes in the annual number of hot nights, very hot days and cold days in Hong Kong

 

» Number of hot nights

» Number of very hot days

» Number of cold days