It is endemic to the Western Ghats of southwest India.

Pseudophilautus wynaadensis males measure 24–28 mm (0.94–1.10 in) in snout–vent length; a female measured 27 mm (1.1 in) SVL.

The upper two-thirds of the tympanum is dark black.

[3] It is found widely in southern Western Ghats from the regions of Coorg and Wayanad to Periyar, on both sides of the Palakkad Gap.

[1][2][3] Pseudophilautus wynaadensis is associated with the understorey of tropical moist evergreen forest and shrubland, as well as secondary forest and cultivated land (such as tea and coffee plantations).