The Observatory cancelled all typhoon signals at 3.40pm on Tuesday as Typhoon Nesat continued to move away from the SAR.
As of 3pm, the storm was estimated to be about 500 kilometres south-southwest of Hong Kong and it was forecast to continue heading west-southwest towards the seas south of Hainan Island.
The typhoon brought strong winds to the SAR on Tuesday, while temperatures dropped below 20 degrees Celsius in many parts of Hong Kong.