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Seasonal ranking

Warmest sea temperature in North America in May

Where the sea is warmest across North America during May, ranked by long-term monthly average water temperature. Playa Flamingo (Guanacaste, Costa Rica) tops the list at around 29°C. Open any spot for today's live water temperature and a 7-day swim forecast.

  1. 1
    Playa Flamingo
    Guanacaste · Costa Rica · Pacific Ocean
    Warm — comfortable swimming
    29°C
    May average
  2. 2
    Playa Hermosa CR
    Guanacaste · Costa Rica · Pacific Ocean
    Warm — comfortable swimming
    29°C
    May average
  3. 3
    Playa Samara
    Guanacaste · Costa Rica · Pacific Ocean
    Warm — comfortable swimming
    29°C
    May average
  4. 4
    Playa Nosara
    Guanacaste · Costa Rica · Pacific Ocean
    Warm — comfortable swimming
    29°C
    May average
  5. 5
    Playa Avellanas
    Guanacaste · Costa Rica · Pacific Ocean
    Warm — comfortable swimming
    29°C
    May average
  6. 6
    Santa Teresa Beach
    Puntarenas · Costa Rica · Pacific Ocean
    Warm — comfortable swimming
    29°C
    May average
  7. 7
    Mal Pais Beach
    Puntarenas · Costa Rica · Pacific Ocean
    Warm — comfortable swimming
    29°C
    May average
  8. 8
    Montezuma Beach
    Puntarenas · Costa Rica · Pacific Ocean
    Warm — comfortable swimming
    29°C
    May average
  9. 9
    Manuel Antonio Beach
    Puntarenas · Costa Rica · Pacific Ocean
    Warm — comfortable swimming
    29°C
    May average
  10. 10
    Playa Dominical
    Puntarenas · Costa Rica · Pacific Ocean
    Warm — comfortable swimming
    29°C
    May average
  11. 11
    Playa Uvita
    Puntarenas · Costa Rica · Pacific Ocean
    Warm — comfortable swimming
    29°C
    May average
  12. 12
    Playa Bonita Panama
    Panama · Panama · Pacific Ocean
    Warm — comfortable swimming
    29°C
    May average
  13. 13
    Playa Blanca Panama
    Cocle · Panama · Pacific Ocean
    Warm — comfortable swimming
    29°C
    May average
  14. 14
    San Juan del Sur Beach
    Rivas · Nicaragua · Pacific Ocean
    Warm — comfortable swimming
    29°C
    May average
  15. 15
    Playa Popoyo
    Rivas · Nicaragua · Pacific Ocean
    Warm — comfortable swimming
    29°C
    May average
  16. 16
    Bahia Honda
    Florida Keys · United States · Atlantic Ocean
    Warm — comfortable swimming
    28°C
    May average
  17. 17
    Sombrero Beach
    Florida Keys · United States · Atlantic Ocean
    Warm — comfortable swimming
    28°C
    May average
  18. 18
    Smathers Beach
    Florida Keys · United States · Atlantic Ocean
    Warm — comfortable swimming
    28°C
    May average
  19. 19
    Playa Delfines
    Quintana Roo · Mexico · Caribbean Sea
    Warm — comfortable swimming
    28°C
    May average
  20. 20
    Playa Norte Isla Mujeres
    Quintana Roo · Mexico · Caribbean Sea
    Warm — comfortable swimming
    28°C
    May average
  21. 21
    Playa del Carmen
    Quintana Roo · Mexico · Caribbean Sea
    Warm — comfortable swimming
    28°C
    May average
  22. 22
    Xpu-Ha Beach
    Quintana Roo · Mexico · Caribbean Sea
    Warm — comfortable swimming
    28°C
    May average
  23. 23
    Akumal Beach
    Quintana Roo · Mexico · Caribbean Sea
    Warm — comfortable swimming
    28°C
    May average
  24. 24
    Playa Pescadores
    Quintana Roo · Mexico · Caribbean Sea
    Warm — comfortable swimming
    28°C
    May average
  25. 25
    Playa Maroma
    Quintana Roo · Mexico · Caribbean Sea
    Warm — comfortable swimming
    28°C
    May average

Warmest sea in May elsewhere

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North America in May — frequently asked questions

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

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Warmest sea in September

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Coldest sea this month

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Warmest sea this month

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