Swimming in Brazil in august 2025 Sea temperature by city in august

In august in Brazil swimming conditions vary by city. Details below:

In august in Fortaleza, Recife, Belem, Fernando de Noronha, João Pessoa, Ajuruteua (Bragança - Pará), Canoa Quebrada, Jijoca de Jericoacoara, Olinda, Lençóis Maranhenses National Park, Praia dos Carneiros, São Luis de Maranhão, São Miguel dos Milagres, Macapá, Maceió, Natal and Parnaiba, swimming conditions are perfect! With water reaching a maximum of 83°F and an average of 81°F, going in the water (and staying there!) feels great.

As for Rio de Janeiro, Guarapari, Paraty, Arraial d'Ajuda, Caraiva, Ilha Grande, Itacaré, Morro de São Paulo, Praia do Forte, Salvador de Bahia, São Mateus (Espírito Santo), Trindade, Angra dos Reis, Aracaju, Araruama, Cabo Frio, Caraguatatuba, Guaruja, Ilhéus, Itaguai, Lauro de Freitas, Macaé, Porto Seguro and Vila Velha, swimming is pleasant in august. The sea water is 73°F on average (min: 70°F/max: 75°F) so you can easily spend time in the water.

Swimming in august in Florianopolis (Santa Catarina Island), Ilha Comprida, Peruíbe, Praia do Rosa (Santa Catarina), Criciúma, Joinville and Paranaguá is possible but the sea is generally cool. So though the sea temperature may sometimes reach 70°F, it can also go as low as 62°F. Note that the average is 66°F.

Swimming in august in Porto Alegre and Tavares (Rio Grande do Sul) is possible... with a wetsuit! Indeed, the water is cold at this time of year with an average temperature of 61°F (min: 58°F/max: 64°F).

Forget about swimming in Pelotas in august! The water temperature is freezing, reaching as low as 52°F (and only 62°F at the best of times). Our advice: plan on sightseeing, and don't bring your beach towel!