Classed by the US National Hurricane Centre as a Category 3 hurricane with winds topping 110mph, the storm is expected to make landfall on Monday evening (GMT) in the southern Mexican state of Oaxaca, bringing with it 10-16 inches of rain.
A warning is in place for the coast between Lagunas de Chacahua and Salina Cruz, with the coastlines of Chiapas and Guerrero states also threatened.
The hurricane has gained momentum quickly after forming in the South Pacific yesterday and is currently tracking towards the Puerto Escondido and Puerto Angel areas, which include the tourist towns of Huatulco, Mazunte and Zipolite.