Press Releases in Hong Kong

Hong Kong had its hottest September on record

A couple walks along a street in the Central district of Hong Kong on Sept 8, 2021. (KIN CHEUNG / AP)

HONG KONG – Hong Kong saw its hottest September on record this year, with the city setting new records with 15 very hot days and 11 hot nights in the month, according to a government press release issued Tuesday.

The government said that last month was the hottest September on record “due to the stronger than usual subtropical ridge over Southern China”. 

September's monthly figures for mean maximum temperature, mean temperature and mean minimum temperature all set record highs, according to a government press release

The highest temperature of the month was recorded on Sept 12, reaching 34.5 degrees Celsius, according to the press release.

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September's monthly figures for mean maximum temperature, mean temperature and mean minimum temperature all set record highs.

The monthly mean maximum temperature stood at 32.8 degrees Celsius, 2.3 degrees Celsius above the average figure during 1991-2020, while the monthly mean temperature reached 29.7 degrees Celsius, up 1.8 degrees Celsius. The monthly mean minimum temperature stood at 27.8 degrees Celsius, compared to the 1991-2020 average of 1.7 degrees Celsius, according to the press release.

Meanwhile, the number of very hot days and hot nights from January to September this year reached 53 days and 57 days, respectively, both exceeding the annual records logged in 2020.

READ MORE: 2020 to be one of HK's top 10 hottest years

September was also much drier than usual with a total rainfall of 129.6 millimeters, about 40 percent of the normal figure of 321.4 mm, according to the press release.

In the same month, the city also witnessed a rare occurrence of hail