Tide is very influential on kite conditions at north Brazil. Water conditions at sea and beach size change with tide. Some lagoons like Ilha do Guajiru don't have enough water for kite at low tide. Some kite spots like Paracuru and Barra Grande have flat conditions only on low tide. So when you go to a kite trip, plan according to tide tables.
Here are likns to official Brazilien tide tables. If you need other months, go to the tides website and get information for each date.
For Cumbuco, Taiba, Paracuru, Lagoinha, Guajiru, Flexeiras, Icaraizinho, Olha do Guajiru, Prea and Jericoacoara, you can use tide table of Pecem's port. Mind that as you move up wind, shift the times forward. For Jericoacoara, shift the times 15-30 seconds.
For kite spots after Jericoacoara up to Barra Grande, use the tide table of Louis Corerreia port.
For Canoa Quebrada, Uruau, Barra Nova and other spots south to Fortaleza, use Tide Table of Fortaleza's port: