Seasonal ranking
Coldest sea temperature in South America in September
Where the sea is coolest across South America during September, ranked by long-term monthly average water temperature. Playa Bristol (Buenos Aires, Argentina) is the coolest at around 13°C. Open any spot for today's live water temperature and a 7-day swim forecast.
- 1Playa BristolBuenos Aires · Argentina · Atlantic OceanCold — wetsuit strongly recommended13°CSeptember average
- 2PinamarBuenos Aires · Argentina · Atlantic OceanCold — wetsuit strongly recommended13°CSeptember average
- 3Villa GesellBuenos Aires · Argentina · Atlantic OceanCold — wetsuit strongly recommended13°CSeptember average
- 4NecocheaBuenos Aires · Argentina · Atlantic OceanCold — wetsuit strongly recommended13°CSeptember average
- 5Las GrutasRío Negro · Argentina · Atlantic OceanCold — wetsuit strongly recommended13°CSeptember average
- 6Puerto MadrynChubut · Argentina · Atlantic OceanCold — wetsuit strongly recommended13°CSeptember average
- 7Praia do Forte Beach FlorianópolisSanta Catarina · Brazil · Atlantic OceanMild — fine for a swim, cool at first19°CSeptember average
- 8Praia BravaSanta Catarina · Brazil · Atlantic OceanMild — fine for a swim, cool at first19°CSeptember average
- 9Punta del Este Playa MansaMaldonado · Uruguay · Atlantic OceanMild — fine for a swim, cool at first19°CSeptember average
- 10José IgnacioMaldonado · Uruguay · Atlantic OceanMild — fine for a swim, cool at first19°CSeptember average
- 11La PalomaRocha · Uruguay · Atlantic OceanMild — fine for a swim, cool at first19°CSeptember average
- 12PocitosMontevideo · Uruguay · Atlantic OceanMild — fine for a swim, cool at first19°CSeptember average
- 13Praia do RosaSanta Catarina · Brazil · Atlantic OceanMild — fine for a swim, cool at first19°CSeptember average
- 14Punta del Diablo BeachRocha · Uruguay · Atlantic OceanMild — fine for a swim, cool at first19°CSeptember average
- 15Praia do ForteBahia · Brazil · Atlantic OceanPleasant — swimmable without a wetsuit21°CSeptember average
- 16Morro de Sao PauloBahia · Brazil · Atlantic OceanPleasant — swimmable without a wetsuit21°CSeptember average
- 17Praia do EspelhoBahia · Brazil · Atlantic OceanPleasant — swimmable without a wetsuit21°CSeptember average
- 18Praia dos CarneirosPernambuco · Brazil · Atlantic OceanPleasant — swimmable without a wetsuit21°CSeptember average
- 19Porto de GalinhasPernambuco · Brazil · Atlantic OceanPleasant — swimmable without a wetsuit21°CSeptember average
- 20Praia de PajucaraAlagoas · Brazil · Atlantic OceanPleasant — swimmable without a wetsuit21°CSeptember average
- 21Praia de Canoa QuebradaCeara · Brazil · Atlantic OceanPleasant — swimmable without a wetsuit21°CSeptember average
- 22Praia do FuturoCeara · Brazil · Atlantic OceanPleasant — swimmable without a wetsuit21°CSeptember average
- 23Praia de CumbucoCeara · Brazil · Atlantic OceanPleasant — swimmable without a wetsuit21°CSeptember average
- 24Praia da PipaRio Grande do Norte · Brazil · Atlantic OceanPleasant — swimmable without a wetsuit21°CSeptember average
- 25Praia de BombinhasSanta Catarina · Brazil · Atlantic OceanPleasant — swimmable without a wetsuit21°CSeptember average
Coldest sea in September elsewhere
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South America in September — frequently asked questions
- Where is the sea coldest in South America in September?
- Playa Bristol in Argentina has the coldest sea in South America in September, averaging about 13.0 °C. Pinamar (13.0 °C) and Villa Gesell are the next coolest.
- How many beaches in South America are warm enough to swim in September?
- None of the top 25 ranked beaches in South America reach 22 °C in September, so a wetsuit is recommended for anything longer than a quick dip.
- How are these September sea temperatures calculated?
- Each figure is a long-term monthly average sea surface temperature for that location, so it reflects a typical September rather than today's reading. Open a beach page for the live water temperature and 7-day forecast.
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