Where is the sea warmest in South America in August?

Playa Blanca Cartagena in Colombia has the warmest sea in South America in August, averaging about 29.0 °C. Santa Marta El Rodadero (29.0 °C) and Palomino follow close behind.

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

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

How are these August sea temperatures calculated?

Each figure is a long-term monthly average sea surface temperature for that location, so it reflects a typical August 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 August

Where the sea is warmest across South America during August, ranked by long-term monthly average water temperature. Playa Blanca Cartagena (Bolívar, Colombia) tops the list at around 29°C. Open any spot for today's live water temperature and a 7-day swim forecast.

1
Playa Blanca Cartagena
Bolívar · Colombia · Caribbean Sea
Warm — comfortable swimming
29°C
August average
2
Santa Marta El Rodadero
Magdalena · Colombia · Caribbean Sea
Warm — comfortable swimming
29°C
August average
3
Palomino
La Guajira · Colombia · Caribbean Sea
Warm — comfortable swimming
29°C
August average
4
San Andrés Spratt Bight
San Andrés · Colombia · Caribbean Sea
Warm — comfortable swimming
29°C
August average
5
Providencia Manzanillo
San Andrés · Colombia · Caribbean Sea
Warm — comfortable swimming
29°C
August average
6
Playa Medina
Sucre · Venezuela · Caribbean Sea
Warm — comfortable swimming
29°C
August average
7
Playa El Agua
Nueva Esparta · Venezuela · Caribbean Sea
Warm — comfortable swimming
29°C
August average
8
Cayo Sombrero
Falcón · Venezuela · Caribbean Sea
Warm — comfortable swimming
29°C
August average
9
Praia de Boa Viagem
Pernambuco · Brazil · Atlantic Ocean
Warm — comfortable swimming
28°C
August average
10
Maragogi
Alagoas · Brazil · Atlantic Ocean
Warm — comfortable swimming
28°C
August average
11
Praia do Gunga
Alagoas · Brazil · Atlantic Ocean
Warm — comfortable swimming
28°C
August average
12
Ponta Negra
Rio Grande do Norte · Brazil · Atlantic Ocean
Warm — comfortable swimming
28°C
August average
13
Genipabu
Rio Grande do Norte · Brazil · Atlantic Ocean
Warm — comfortable swimming
28°C
August average
14
Fernando de Noronha Baia do Sancho
Pernambuco · Brazil · Atlantic Ocean
Warm — comfortable swimming
28°C
August average
15
Jericoacoara Beach
Ceará · Brazil · Atlantic Ocean
Warm — comfortable swimming
28°C
August average
16
Praia de Maracajaú
Rio Grande do Norte · Brazil · Atlantic Ocean
Warm — comfortable swimming
28°C
August average
17
Copacabana
Rio de Janeiro · Brazil · Atlantic Ocean
Warm — comfortable swimming
24°C
August average
18
Búzios Geribá
Rio de Janeiro · Brazil · Atlantic Ocean
Warm — comfortable swimming
24°C
August average
19
Cabo Frio Praia do Forte
Rio de Janeiro · Brazil · Atlantic Ocean
Warm — comfortable swimming
24°C
August average
20
Praia de Guarujá
São Paulo · Brazil · Atlantic Ocean
Warm — comfortable swimming
24°C
August average
21
Ilhabela Praia do Curral
São Paulo · Brazil · Atlantic Ocean
Warm — comfortable swimming
24°C
August average
22
Ubatuba Praia Grande
São Paulo · Brazil · Atlantic Ocean
Warm — comfortable swimming
24°C
August average
23
Paraty Praia do Pontal
Rio de Janeiro · Brazil · Atlantic Ocean
Warm — comfortable swimming
24°C
August average
24
Viña del Mar Reñaca
Valparaíso · Chile · Pacific Ocean
Pleasant — swimmable without a wetsuit
23°C
August average
25
La Serena
Coquimbo · Chile · Pacific Ocean
Pleasant — swimmable without a wetsuit
23°C
August average

Warmest sea in August elsewhere

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South America in August — frequently asked questions

Where is the sea warmest in South America in August?: Playa Blanca Cartagena in Colombia has the warmest sea in South America in August, averaging about 29.0 °C. Santa Marta El Rodadero (29.0 °C) and Palomino follow close behind.
How many beaches in South America are warm enough to swim in August?: 25 of the top 25 ranked beaches in South America average 22 °C or more in August, which most swimmers find comfortable without a wetsuit.
How are these August sea temperatures calculated?: Each figure is a long-term monthly average sea surface temperature for that location, so it reflects a typical August rather than today's reading. Open a beach page for the live water temperature and 7-day forecast.

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