A cheeky wild monkey cupped a female hiker's breast who stopped to rest on the mountain.

Footage shows the grabby primate staring at the tourist before it felt her chest and touched her cleavage on the island of Phuket, Thailand, on July 3.

The macaque did not pull away even as the woman and her friends screamed, shocked at the animal's behaviour, although it did not hurt them.

Thailand's growing population of primates has become a problem as the animals are known to damage property, such as cars and buildings. Unafraid of the consequences, they have also started stealing food from tourists and locals.

Meanwhile, the Thai government is taking steps to manage the monkey population in the country including creating sanctuaries, mass sterilisation programs, educating of public on how to handle the animals properly, and relocating them to more suitable habitats.