HONG KONG - Residents found the sun directly overhead at 12:29 pm on Tuesday, with objects leaving "no shadows" due to a rare summer phenomenon.

Hong Kong will have the sun directly overhead twice a year, each before and after the summer solstice, the Hong Kong Observatory explained on its Facebook page.  

Meanwhile, temperatures over many places across the city rose to about 33 degrees Celsius around noon. 

The subtropical ridge is bringing generally fine and very hot weather to southeastern China, said the observatory.  Though it is extending westwards, it will still be very hot over southeastern China during the weekend and early next week, it added. 

READ MORE: HK records hottest temperature so far this year on Sunday

Under the influence of a southerly airstream, it will be persistently very hot over the coast of Guangdong in the next couple of days, it added. 

China Daily's Andy Chong took the photos on Tuesday.