The limbs are green and sides of the snout and area above eyes are reddish brown.

A moderately broad dorso-lateral stripe runs along each side of the body.

Males have single median vocal sac that is pale yellow in colour and triangular in shape.

[3] The male advertisement call is a "buzz" of eight pulses and has a duration of 0.1 seconds.

Hyperolius nasutus is found at the margins of swamps, rivers, and lakes in savanna and grassland habitats.