SwimTemperature logoSwimTemperature
Open live map
Seasonal ranking

Warmest sea temperature in North America in March

Where the sea is warmest across North America during March, ranked by long-term monthly average water temperature. Playa Tamarindo (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.

  1. 1
    Playa Tamarindo
    Guanacaste · Costa Rica · Pacific Ocean
    Warm — comfortable swimming
    28°C
    March average
  2. 2
    Playa Conchal
    Guanacaste · Costa Rica · Pacific Ocean
    Warm — comfortable swimming
    28°C
    March average
  3. 3
    Playa Flamingo
    Guanacaste · Costa Rica · Pacific Ocean
    Warm — comfortable swimming
    28°C
    March average
  4. 4
    Playa Hermosa CR
    Guanacaste · Costa Rica · Pacific Ocean
    Warm — comfortable swimming
    28°C
    March average
  5. 5
    Playa Samara
    Guanacaste · Costa Rica · Pacific Ocean
    Warm — comfortable swimming
    28°C
    March average
  6. 6
    Playa Nosara
    Guanacaste · Costa Rica · Pacific Ocean
    Warm — comfortable swimming
    28°C
    March average
  7. 7
    Santa Teresa Beach
    Puntarenas · Costa Rica · Pacific Ocean
    Warm — comfortable swimming
    28°C
    March average
  8. 8
    Mal Pais Beach
    Puntarenas · Costa Rica · Pacific Ocean
    Warm — comfortable swimming
    28°C
    March average
  9. 9
    Montezuma Beach
    Puntarenas · Costa Rica · Pacific Ocean
    Warm — comfortable swimming
    28°C
    March average
  10. 10
    Manuel Antonio Beach
    Puntarenas · Costa Rica · Pacific Ocean
    Warm — comfortable swimming
    28°C
    March average
  11. 11
    Playa Dominical
    Puntarenas · Costa Rica · Pacific Ocean
    Warm — comfortable swimming
    28°C
    March average
  12. 12
    Playa Uvita
    Puntarenas · Costa Rica · Pacific Ocean
    Warm — comfortable swimming
    28°C
    March average
  13. 13
    Playa Bonita Panama
    Panama · Panama · Pacific Ocean
    Warm — comfortable swimming
    28°C
    March average
  14. 14
    Playa Blanca Panama
    Cocle · Panama · Pacific Ocean
    Warm — comfortable swimming
    28°C
    March average
  15. 15
    Playa Venao
    Los Santos · Panama · Pacific Ocean
    Warm — comfortable swimming
    28°C
    March average
  16. 16
    Playa Maderas
    Rivas · Nicaragua · Pacific Ocean
    Warm — comfortable swimming
    28°C
    March average
  17. 17
    Playa Popoyo
    Rivas · Nicaragua · Pacific Ocean
    Warm — comfortable swimming
    28°C
    March average
  18. 18
    Seven Mile Beach Negril
    Westmoreland · Jamaica · Caribbean Sea
    Warm — comfortable swimming
    27°C
    March average
  19. 19
    Doctor's Cave Beach
    Saint James · Jamaica · Caribbean Sea
    Warm — comfortable swimming
    27°C
    March average
  20. 20
    Frenchman's Cove
    Portland · Jamaica · Caribbean Sea
    Warm — comfortable swimming
    27°C
    March average
  21. 21
    James Bond Beach
    Saint Mary · Jamaica · Caribbean Sea
    Warm — comfortable swimming
    27°C
    March average
  22. 22
    Reduit Beach
    Gros Islet · Saint Lucia · Caribbean Sea
    Warm — comfortable swimming
    27°C
    March average
  23. 23
    Anse Chastanet
    Soufriere · Saint Lucia · Caribbean Sea
    Warm — comfortable swimming
    27°C
    March average
  24. 24
    Treasure Beach
    Saint Elizabeth · Jamaica · Caribbean Sea
    Warm — comfortable swimming
    27°C
    March average
  25. 25
    Anse Chastanet
    Soufrière · Saint Lucia · Caribbean Sea
    Warm — comfortable swimming
    27°C
    March average

Warmest sea in March elsewhere

EuropeSouth AmericaAsiaAfricaOceaniaUnited StatesUnited KingdomAustraliaSpainItalyFranceGreeceMexicoPortugalNew ZealandCanadaCroatiaIrelandThailandIndonesiaBrazilPhilippinesPolandSwedenDenmarkTurkeyJapanGermanyNorway

North America in March — frequently asked questions

Where is the sea warmest in North America in March?
Playa Tamarindo in Costa Rica has the warmest sea in North America in March, averaging about 28.0 °C. Playa Conchal (28.0 °C) and Playa Flamingo follow close behind.
How many beaches in North America are warm enough to swim in March?
25 of the top 25 ranked beaches in North America average 22 °C or more in March, which most swimmers find comfortable without a wetsuit.
How are these March sea temperatures calculated?
Each figure is a long-term monthly average sea surface temperature for that location, so it reflects a typical March 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