Where is the sea warmest in South America in March?

Copacabana in Brazil has the warmest sea in South America in March, averaging about 28.0 °C. Praia de Boa Viagem (28.0 °C) and Maragogi follow close behind.

How many beaches in South America are warm enough to swim in March?

25 of the top 25 ranked beaches in South America average 22 °C or more in March, which most swimmers find comfortable without a wetsuit.

How are these March sea temperatures calculated?

Each figure is a long-term monthly average sea surface temperature for that location, so it reflects a typical March rather than today's reading. Open a beach page for the live water temperature and 7-day forecast.

Seasonal ranking

Warmest sea temperature in South America in March

Where the sea is warmest across South America during March, ranked by long-term monthly average water temperature. Copacabana (Rio de Janeiro, Brazil) tops the list at around 28°C. Open any spot for today's live water temperature and a 7-day swim forecast.

1
Copacabana
Rio de Janeiro · Brazil · Atlantic Ocean
Warm — comfortable swimming
28°C
March average
2
Praia de Boa Viagem
Pernambuco · Brazil · Atlantic Ocean
Warm — comfortable swimming
28°C
March average
3
Maragogi
Alagoas · Brazil · Atlantic Ocean
Warm — comfortable swimming
28°C
March average
4
Praia do Gunga
Alagoas · Brazil · Atlantic Ocean
Warm — comfortable swimming
28°C
March average
5
Ponta Negra
Rio Grande do Norte · Brazil · Atlantic Ocean
Warm — comfortable swimming
28°C
March average
6
Genipabu
Rio Grande do Norte · Brazil · Atlantic Ocean
Warm — comfortable swimming
28°C
March average
7
Búzios Geribá
Rio de Janeiro · Brazil · Atlantic Ocean
Warm — comfortable swimming
28°C
March average
8
Cabo Frio Praia do Forte
Rio de Janeiro · Brazil · Atlantic Ocean
Warm — comfortable swimming
28°C
March average
9
Praia de Guarujá
São Paulo · Brazil · Atlantic Ocean
Warm — comfortable swimming
28°C
March average
10
Ilhabela Praia do Curral
São Paulo · Brazil · Atlantic Ocean
Warm — comfortable swimming
28°C
March average
11
Ubatuba Praia Grande
São Paulo · Brazil · Atlantic Ocean
Warm — comfortable swimming
28°C
March average
12
Paraty Praia do Pontal
Rio de Janeiro · Brazil · Atlantic Ocean
Warm — comfortable swimming
28°C
March average
13
Fernando de Noronha Baia do Sancho
Pernambuco · Brazil · Atlantic Ocean
Warm — comfortable swimming
28°C
March average
14
Jericoacoara Beach
Ceará · Brazil · Atlantic Ocean
Warm — comfortable swimming
28°C
March average
15
Praia de Maracajaú
Rio Grande do Norte · Brazil · Atlantic Ocean
Warm — comfortable swimming
28°C
March average
16
Praia do Forte Beach Florianópolis
Santa Catarina · Brazil · Atlantic Ocean
Warm — comfortable swimming
27°C
March average
17
Praia Brava
Santa Catarina · Brazil · Atlantic Ocean
Warm — comfortable swimming
27°C
March average
18
Punta del Este Playa Mansa
Maldonado · Uruguay · Atlantic Ocean
Warm — comfortable swimming
27°C
March average
19
José Ignacio
Maldonado · Uruguay · Atlantic Ocean
Warm — comfortable swimming
27°C
March average
20
La Paloma
Rocha · Uruguay · Atlantic Ocean
Warm — comfortable swimming
27°C
March average
21
Pocitos
Montevideo · Uruguay · Atlantic Ocean
Warm — comfortable swimming
27°C
March average
22
Praia do Rosa
Santa Catarina · Brazil · Atlantic Ocean
Warm — comfortable swimming
27°C
March average
23
Punta del Diablo Beach
Rocha · Uruguay · Atlantic Ocean
Warm — comfortable swimming
27°C
March average
24
Playa Blanca Cartagena
Bolívar · Colombia · Caribbean Sea
Warm — comfortable swimming
26°C
March average
25
Santa Marta El Rodadero
Magdalena · Colombia · Caribbean Sea
Warm — comfortable swimming
26°C
March average

Warmest sea in March elsewhere

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South America in March — frequently asked questions

Where is the sea warmest in South America in March?: Copacabana in Brazil has the warmest sea in South America in March, averaging about 28.0 °C. Praia de Boa Viagem (28.0 °C) and Maragogi follow close behind.
How many beaches in South America are warm enough to swim in March?: 25 of the top 25 ranked beaches in South America average 22 °C or more in March, which most swimmers find comfortable without a wetsuit.
How are these March sea temperatures calculated?: Each figure is a long-term monthly average sea surface temperature for that location, so it reflects a typical March rather than today's reading. Open a beach page for the live water temperature and 7-day forecast.

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