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

Do you want to go to the beach in Brazil in october 2025? Is it the right month to go for pleasant temperatures and staying in the water for a long time? The answer is on this page with the sea temperatures in october in Brazil by city and our opinion on the chances of enjoying pleasant sea conditions.

Sea temperature in Brazil in october 2025

Here, find the average sea temperature in Brazil in october in several coastal cities.

Southeast Region in october

on average:

73°F

min: 68°F / max: 79°F

on average:

75°F

min: 72°F / max: 78°F

on average:

73°F

min: 68°F / max: 79°F

Ilha Comprida

on average:

72°F

min: 68°F / max: 76°F

on average:

73°F

min: 67°F / max: 79°F

Peruíbe

on average:

73°F

min: 69°F / max: 77°F

South Region in october

on average:

70°F

min: 67°F / max: 73°F

on average:

67°F

min: 64°F / max: 69°F

on average:

70°F

min: 67°F / max: 73°F

on average:

66°F

min: 63°F / max: 70°F

Criciúma

on average:

70°F

min: 67°F / max: 73°F

Joinville

on average:

71°F

min: 67°F / max: 75°F

Northeast Region in october

on average:

81°F

min: 79°F / max: 82°F

on average:

81°F

min: 79°F / max: 82°F

on average:

81°F

min: 80°F / max: 81°F

on average:

81°F

min: 79°F / max: 82°F

on average:

79°F

min: 77°F / max: 80°F

on average:

81°F

min: 79°F / max: 83°F

North Region in october

on average:

83°F

min: 81°F / max: 85°F

Ajuruteua (Bragança - Pará)

on average:

83°F

min: 81°F / max: 85°F

Macapá

on average:

83°F

min: 81°F / max: 85°F

Where should you go swimming in Brazil in the month of october?

Swimming in Brazil in october is ideal (in the best case scenario)

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

In october in Fortaleza, Recife, Belem, Fernando de Noronha, João Pessoa, Ajuruteua (Bragança - Pará), Canoa Quebrada, Itacaré, Jijoca de Jericoacoara, Morro de São Paulo, Olinda, Lençóis Maranhenses National Park, Praia do Forte, Praia dos Carneiros, Salvador de Bahia, São Luis de Maranhão, São Miguel dos Milagres, Aracaju, Ilhéus, Lauro de Freitas, Macapá, Maceió, Natal and Parnaiba, swimming conditions are perfect! With water reaching a maximum of 82°F and an average of 81°F, going in the water (and staying there!) feels great.

As for Rio de Janeiro, Florianopolis (Santa Catarina Island), Guarapari, Paraty, Arraial d'Ajuda, Caraiva, Ilha Comprida, Ilha Grande, Peruíbe, São Mateus (Espírito Santo), Trindade, Angra dos Reis, Araruama, Cabo Frio, Caraguatatuba, Guaruja, Itaguai, Joinville, Macaé, Paranaguá, Porto Seguro and Vila Velha, swimming is pleasant in october. The sea water is 73°F on average (min: 68°F/max: 79°F) so you can easily spend time in the water.

Swimming in october in Porto Alegre, Praia do Rosa (Santa Catarina), Tavares (Rio Grande do Sul), Criciúma and Pelotas is possible but the sea is generally cool. So though the sea temperature may sometimes reach 69°F, it can also go as low as 64°F. Note that the average is 67°F.

Where to go swimming in Brazil in october: the map of sea temperatures

ideal swimming pleasant swimming cool swimming cold swimming freezing swimming

Water temperature and seasonal norms in october

Rio de Janeiro

October
Average sea temperature 73°F
Minimum sea temperature 68°F
Maximum sea temperature 79°F
Average outside temperature 77°F
Maximum outside temperature 81°F
Minimum outside temperature 72°F
Precipitation 6.7in
Number of days of precipitation 9 jour(s)
(30%)
Cloud cover 44%
Our opinion pleasant swimming

More information on swimming in Rio de Janeiro in october

Florianopolis (Santa Catarina Island)

October
Average sea temperature 70°F
Minimum sea temperature 67°F
Maximum sea temperature 73°F
Average outside temperature 70°F
Maximum outside temperature 74°F
Minimum outside temperature 67°F
Precipitation 5.4in
Number of days of precipitation 8 jour(s)
(25%)
Cloud cover 53%
Our opinion pleasant swimming

More information on swimming in Florianopolis (Santa Catarina Island) in october

Fortaleza

October
Average sea temperature 81°F
Minimum sea temperature 79°F
Maximum sea temperature 82°F
Average outside temperature 83°F
Maximum outside temperature 88°F
Minimum outside temperature 79°F
Precipitation 0.5in
Number of days of precipitation 0 jour(s)
(0%)
Cloud cover 33%
Our opinion ideal swimming

More information on swimming in Fortaleza in october

Porto Alegre

October
Average sea temperature 67°F
Minimum sea temperature 64°F
Maximum sea temperature 69°F
Average outside temperature 70°F
Maximum outside temperature 79°F
Minimum outside temperature 61°F
Precipitation 7.4in
Number of days of precipitation 8 jour(s)
(26%)
Cloud cover 39%
Our opinion cool swimming

More information on swimming in Porto Alegre in october

Recife

October
Average sea temperature 81°F
Minimum sea temperature 79°F
Maximum sea temperature 82°F
Average outside temperature 81°F
Maximum outside temperature 85°F
Minimum outside temperature 77°F
Precipitation 1.9in
Number of days of precipitation 2 jour(s)
(5%)
Cloud cover 45%
Our opinion ideal swimming

More information on swimming in Recife in october

List of coastal cities in Brazil

Rio de Janeiro in octoberpleasant swimming
Florianopolis (Santa Catarina Island) in octoberpleasant swimming
Fortaleza in octoberideal swimming
Porto Alegre in octobercool swimming
Recife in octoberideal swimming
Belem in octoberideal swimming
Fernando de Noronha in octoberideal swimming
Guarapari in octoberpleasant swimming
João Pessoa in octoberideal swimming
Paraty in octoberpleasant swimming
Ajuruteua (Bragança - Pará) in octoberideal swimming
Arraial d'Ajuda in octoberpleasant swimming
Canoa Quebrada in octoberideal swimming
Caraiva in octoberpleasant swimming
Ilha Comprida in octoberpleasant swimming
Ilha Grande in octoberpleasant swimming
Itacaré in octoberideal swimming
Jijoca de Jericoacoara in octoberideal swimming
Morro de São Paulo in octoberideal swimming
Olinda in octoberideal swimming
Lençóis Maranhenses National Park in octoberideal swimming
Peruíbe in octoberpleasant swimming
Praia do Forte in octoberideal swimming
Praia do Rosa (Santa Catarina) in octobercool swimming
Praia dos Carneiros in octoberideal swimming
Salvador de Bahia in octoberideal swimming
São Luis de Maranhão in octoberideal swimming
São Mateus (Espírito Santo) in octoberpleasant swimming
São Miguel dos Milagres in octoberideal swimming
Tavares (Rio Grande do Sul) in octobercool swimming
Trindade in octoberpleasant swimming
Angra dos Reis in octoberpleasant swimming
Aracaju in octoberideal swimming
Araruama in octoberpleasant swimming
Cabo Frio in octoberpleasant swimming
Caraguatatuba in octoberpleasant swimming
Criciúma in octobercool swimming
Guaruja in octoberpleasant swimming
Ilhéus in octoberideal swimming
Itaguai in octoberpleasant swimming
Joinville in octoberpleasant swimming
Lauro de Freitas in octoberideal swimming
Macaé in octoberpleasant swimming
Macapá in octoberideal swimming
Maceió in octoberideal swimming
Natal in octoberideal swimming
Paranaguá in octoberpleasant swimming
Parnaiba in octoberideal swimming
Pelotas in octobercool swimming
Porto Seguro in octoberpleasant swimming
Vila Velha in octoberpleasant swimming
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