Like many small rivers of northeastern Brazil, the Timonha River dries up between July and November and only flows during the rainy season.

[1] According to a survey by the United States Hydrographic Office, the Timonha River is too small to allow passage by boats.

[2] The river is part of the Timonha-Ubatuba estuarine system, which has the largest mangrove ecosystem in Ceará.

[1] The river delta is protected by the 313,800 hectares (775,000 acres) Delta do Parnaíba Environmental Protection Area, created in 1996.

This article related to a river in Ceará, Brazil is a stub.