Where is the sea warmest in South America in October?

Praia de Boa Viagem in Brazil has the warmest sea in South America in October, averaging about 29.0 °C. Maragogi (29.0 °C) and Praia do Gunga follow close behind.

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

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

How are these October sea temperatures calculated?

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

Where the sea is warmest across South America during October, ranked by long-term monthly average water temperature. Praia de Boa Viagem (Pernambuco, Brazil) tops the list at around 29°C. Open any spot for today's live water temperature and a 7-day swim forecast.

1
Praia de Boa Viagem
Pernambuco · Brazil · Atlantic Ocean
Warm — comfortable swimming
29°C
October average
2
Maragogi
Alagoas · Brazil · Atlantic Ocean
Warm — comfortable swimming
29°C
October average
3
Praia do Gunga
Alagoas · Brazil · Atlantic Ocean
Warm — comfortable swimming
29°C
October average
4
Ponta Negra
Rio Grande do Norte · Brazil · Atlantic Ocean
Warm — comfortable swimming
29°C
October average
5
Genipabu
Rio Grande do Norte · Brazil · Atlantic Ocean
Warm — comfortable swimming
29°C
October average
6
Fernando de Noronha Baia do Sancho
Pernambuco · Brazil · Atlantic Ocean
Warm — comfortable swimming
29°C
October average
7
Jericoacoara Beach
Ceará · Brazil · Atlantic Ocean
Warm — comfortable swimming
29°C
October average
8
Praia de Maracajaú
Rio Grande do Norte · Brazil · Atlantic Ocean
Warm — comfortable swimming
29°C
October average
9
Playa Blanca Cartagena
Bolívar · Colombia · Caribbean Sea
Warm — comfortable swimming
28°C
October average
10
Santa Marta El Rodadero
Magdalena · Colombia · Caribbean Sea
Warm — comfortable swimming
28°C
October average
11
Palomino
La Guajira · Colombia · Caribbean Sea
Warm — comfortable swimming
28°C
October average
12
San Andrés Spratt Bight
San Andrés · Colombia · Caribbean Sea
Warm — comfortable swimming
28°C
October average
13
Providencia Manzanillo
San Andrés · Colombia · Caribbean Sea
Warm — comfortable swimming
28°C
October average
14
Playa Medina
Sucre · Venezuela · Caribbean Sea
Warm — comfortable swimming
28°C
October average
15
Playa El Agua
Nueva Esparta · Venezuela · Caribbean Sea
Warm — comfortable swimming
28°C
October average
16
Cayo Sombrero
Falcón · Venezuela · Caribbean Sea
Warm — comfortable swimming
28°C
October average
17
Copacabana
Rio de Janeiro · Brazil · Atlantic Ocean
Warm — comfortable swimming
26°C
October average
18
Búzios Geribá
Rio de Janeiro · Brazil · Atlantic Ocean
Warm — comfortable swimming
26°C
October average
19
Cabo Frio Praia do Forte
Rio de Janeiro · Brazil · Atlantic Ocean
Warm — comfortable swimming
26°C
October average
20
Praia de Guarujá
São Paulo · Brazil · Atlantic Ocean
Warm — comfortable swimming
26°C
October average
21
Ilhabela Praia do Curral
São Paulo · Brazil · Atlantic Ocean
Warm — comfortable swimming
26°C
October average
22
Ubatuba Praia Grande
São Paulo · Brazil · Atlantic Ocean
Warm — comfortable swimming
26°C
October average
23
Paraty Praia do Pontal
Rio de Janeiro · Brazil · Atlantic Ocean
Warm — comfortable swimming
26°C
October average
24
Viña del Mar Reñaca
Valparaíso · Chile · Pacific Ocean
Pleasant — swimmable without a wetsuit
22°C
October average
25
La Serena
Coquimbo · Chile · Pacific Ocean
Pleasant — swimmable without a wetsuit
22°C
October average

Warmest sea in October elsewhere

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South America in October — frequently asked questions

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

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