What will the HK weather be like in May 2016?

Oh, the previous weather records show that the temperature was 80 F to 90 F. It will be hot and moist. Beside the rain gear, summer clothes are enough to prepare.

There are lots of popular scenic areas in HK, including Ocean Park, Victoria Bay, Disneyland Resort, Victoria Peak, Madame Tussauds, Lan Kwai Fong, Repulse Bay, Tsim Sha Tsui, A Symphony of Lights, Ngong Ping 360 and Big Buddha.
Two weeks' time is enough for sightseeing. Have fun!