on this link, the institudo estadual do ambiente - inea, provides the suitability of several beaches, including praia da barra da tijuca and praia do recreio, that can be used to determine water conditions at praia da reserva (technically part of praia da barra).

on this link an early morning shot of the beach is posted daily, showing water conditions - the website waves includes charts showing tides, winds, temperatures and overall climate forecasts.

containing constantly updated data provided by the brazilian navy, waves is a valuable resource for anyone planning to surf on any beaches in rio - this linkshows praia da reserva on a wikimapia, best seen using google chrome, as it might not open correctly with other browsers.