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

Warmest sea in May elsewhere

EuropeSouth AmericaAsiaAfricaOceaniaUnited StatesUnited KingdomAustraliaSpainItalyFranceGreeceMexicoPortugalNew ZealandCanadaCroatiaIrelandThailandIndonesiaBrazilPhilippinesPolandSwedenDenmarkTurkeyJapanGermanyNorway

North America in May — frequently asked questions

Where is the sea warmest in North America in May?
Playa Tamarindo in Costa Rica has the warmest sea in North America in May, averaging about 29.0 °C. Playa Conchal (29.0 °C) and Playa Flamingo 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.

Explore every sea temperature page

Jump straight to a country, coastal region, city, seasonal ranking or comparison.

Sea temperature by country

United StatesUnited KingdomAustraliaSpainItalyFranceGreeceMexicoPortugalNew ZealandCanadaCroatiaIrelandThailandIndonesiaBrazilPhilippinesPolandSwedenDenmarkTurkeyJapanGermanyNorwayNetherlandsCyprusBulgariaIndiaSouth AfricaEgyptDominican RepublicSri LankaAll destinations →

Coastal region hubs

New South WalesSardiniaAlgarveAquitaineCornwallSicilyWestern AustraliaTuscanyVictoriaBaliNorth IslandLanguedocLiguriaBrittanyIstriaSilver CoastPacific CoastApuliaBritish ColumbiaCosta del SolDevonNova ScotiaGaliciaMallorca

Water temperature today by city

LondonManchesterBirminghamEdinburghGlasgowDublinParisLyonToulouseBordeauxMadridBarcelonaSevilleLisbonPortoRomeMilanFlorenceNaplesBerlin

Warmest sea in August

EuropeNorth AmericaSouth AmericaAsiaAfricaOceaniaUnited StatesUnited KingdomAustraliaSpainItalyFranceGreeceMexicoPortugalNew ZealandCanadaCroatiaIrelandThailandWarmest right now →

Warmest sea month by month (Europe)

JanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecember

Popular beach comparisons

Platja d'Aro vs Platja de Sant PolCala Sa Tuna vs AiguablavaCala Pola vs Platja GranCala Montjoi vs Platja de PalsPlatja de Pals vs Cala Sa TunaCala Estreta vs Platja d'AroPlatja de Lloret vs Platja GranPlatja de la Pineda vs Salou LevantePlatja Llarga vs Platja del MiracleCambrils Playa vs Salou LevantePlaya del Postiguet vs Playa de San JuanPlaya de San Juan vs Playa del Postiguet SurPlaya de Levante vs Playa de PonienteCala Finestrat vs Playa de PonientePlaya del Albir vs Playa de LevantePlaya de la Fossa vs Cala BaladrarCala el Portet vs Cala del MoraigPlaya del Arenal vs Cala GranadellaCompare any two beaches →

Freshwater swimming

All lake water temperatures (525)Live lake mapCompare lakesRivers & swimming holesLive sea temperature mapSwimming guides

Keep exploring

Live sea temperature mapEvery coast, updated hourlyWarmest beaches todayLive ranking right nowCompare two beachesSide-by-side swim conditionsLake water temperaturesFreshwater swimming spotsRivers & swimming holesWild swimming conditionsAll destinationsBrowse by country & region

Warmest sea this month

europenorth americaasiaoceania