Açude São José II is a reservoir located at Sítio São José in the municipality of Piquet Carneiro, Ceará, within the Sub-Bacia Hidrográfica do Banabuiú. Inaugurated in 1992 by the state government of Ceará, it holds a capacity of approximately 29,140,000 cubic meters, making it one of the larger reservoirs in the Sertão Central region of the state.

The reservoir serves as a strategic water source for human supply and perennializes the riacho São Gonçalo along a 14-kilometer stretch, supporting irrigation and livestock watering in the surrounding area. It is noted for having good recharge capacity, which contributes to maintaining its water volume over time.

Canoeing is practiced on the reservoir, alongside fishing and general contact with nature. The site is listed as a tourist point by the Prefeitura de Piquet Carneiro and is accessible 24 hours a day. Given its role as a public water supply reservoir and its agricultural surroundings, paddlers should be aware that irrigation and livestock activities occur along its shores, which may affect water quality considerations.

The reservoir's position within the semi-arid Sertão Central region of Ceará means that water levels can fluctuate significantly depending on rainfall patterns, which are highly seasonal in this part of northeastern Brazil. The rainy season in this region typically runs from roughly January through April or May, and water levels are generally higher following this period. Paddlers planning a visit should account for the possibility of lower water levels during the extended dry season.