Seasonal ranking
Warmest sea temperature in Costa Rica in October
Where the sea is warmest across Costa Rica during October, ranked by long-term monthly average water temperature. Playa Flamingo (Guanacaste, Costa Rica) tops the list at around 28°C. Open any spot for today's live water temperature and a 7-day swim forecast.
- 1Playa FlamingoGuanacaste · Costa Rica · Pacific OceanWarm — comfortable swimming28°COctober average
- 2Playa Hermosa CRGuanacaste · Costa Rica · Pacific OceanWarm — comfortable swimming28°COctober average
- 3Playa SamaraGuanacaste · Costa Rica · Pacific OceanWarm — comfortable swimming28°COctober average
- 4Playa NosaraGuanacaste · Costa Rica · Pacific OceanWarm — comfortable swimming28°COctober average
- 5Playa AvellanasGuanacaste · Costa Rica · Pacific OceanWarm — comfortable swimming28°COctober average
- 6Santa Teresa BeachPuntarenas · Costa Rica · Pacific OceanWarm — comfortable swimming28°COctober average
- 7Mal Pais BeachPuntarenas · Costa Rica · Pacific OceanWarm — comfortable swimming28°COctober average
- 8Montezuma BeachPuntarenas · Costa Rica · Pacific OceanWarm — comfortable swimming28°COctober average
- 9Manuel Antonio BeachPuntarenas · Costa Rica · Pacific OceanWarm — comfortable swimming28°COctober average
- 10Playa DominicalPuntarenas · Costa Rica · Pacific OceanWarm — comfortable swimming28°COctober average
- 11Playa UvitaPuntarenas · Costa Rica · Pacific OceanWarm — comfortable swimming28°COctober average
- 12Puerto Viejo BeachLimon · Costa Rica · Caribbean SeaWarm — comfortable swimming28°COctober average
- 13Playa ManzanilloLimon · Costa Rica · Caribbean SeaWarm — comfortable swimming28°COctober average
- 14Cahuita BeachLimon · Costa Rica · Caribbean SeaWarm — comfortable swimming28°COctober average
- 15Playa Hermosa GuanacasteGuanacaste · Costa Rica · Pacific OceanPleasant — swimmable without a wetsuit22°COctober average
- 16Playa ConchalGuanacaste · Costa Rica · Pacific OceanPleasant — swimmable without a wetsuit22°COctober average
Warmest sea in October elsewhere
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Costa Rica in October — frequently asked questions
- Where is the sea warmest in Costa Rica in October?
- Playa Flamingo in Costa Rica has the warmest sea in Costa Rica in October, averaging about 28.0 °C. Playa Hermosa CR (28.0 °C) and Playa Samara follow close behind.
- How many beaches in Costa Rica are warm enough to swim in October?
- 16 of the top 16 ranked beaches in Costa Rica 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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