A man cools himself with a fan during a hot day in Hong Kong on Sep 13, 2022. (PETER PARKS / AFP)

HONG KONG – Hong Kong has experienced the warmest autumn on record from September to November 2022, according to the Hong Kong Observatory (HKO).

The mean maximum temperature and the mean temperature during September to November reached 29.2 degrees Celsius and 26.4 degrees Celsius respectively, making them the highest on record for the same period, the observatory said in a statement on Friday.

November was much warmer than usual in Hong Kong, owing to the northeast monsoon over southern China being generally weaker than normal for most of the time in the month.

A man sells electric portable fans at a stall amid hot weather in Hong Kong on Sept 16, 2022. (ISAAC LAWRENCE / AFP)

Given the rainfall associated with tropical cyclone Nalgae in early November, the HKO said the month was much wetter than usual

According to the HKO, the mean minimum temperature in November reached 22.0 degrees Celsius, 1.7 degrees higher than normal, while the mean temperature was 1.2 degrees higher, reaching 23.4 degrees Celsius. The two figures “were respectively the second and the third highest for November on record”, it added.

READ MORE: HKO: Hong Kong's September dry and exceptionally hot

Given the rainfall associated with tropical cyclone Nalgae in early November, the HKO said the month was much wetter than usual. The monthly total rainfall was 130.8 millimeters, more than three times the normal figure of 39.3mm.  

On Nov 1, Hong Kong was windy with a few showers due to the combined effect of the northeast monsoon and the Severe Tropical Storm Nalgae. As the storm approached the city, the HKO issued the No 8 Storm Signal the following afternoon.

A woman walks along at a promenade next to Victoria Harbour in Hong Kong on Nov 2, 2022, as Severe Tropical Storm Nalgae edged closer to the city. (CALVIN NG / CHINA DAILY)

On Nov 2 and 3, the outer rainbands of Nalgae brought occasional squally showers to Hong Kong. On these two days, more than 30mm of rainfall were generally recorded over the city and rainfall even exceeded 80mm over the urban areas and the eastern part of the territory.

People walk on a street in Hong Kong on Nov 2, 2022, as Severe Tropical Storm Nalgae edged closer to the city. (CALVIN NG / CHINA DAILY)

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November was unseasonably gloomy in the city, with only 100.3 hours of bright sunshine, which was about 42 percent below the normal figure and the lowest for November on record.