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Warmest sea temperature in United States in April

Where the sea is warmest across United States during April, ranked by long-term monthly average water temperature. Zoni Beach (Puerto Rico, United States) tops the list at around 27°C. Open any spot for today's live water temperature and a 7-day swim forecast.

  1. 1
    Zoni Beach
    Puerto Rico · United States · Caribbean Sea
    Warm — comfortable swimming
    27°C
    April average
  2. 2
    Sun Bay
    Puerto Rico · United States · Caribbean Sea
    Warm — comfortable swimming
    27°C
    April average
  3. 3
    Playa Jobos
    Puerto Rico · United States · Atlantic Ocean
    Warm — comfortable swimming
    27°C
    April average
  4. 4
    Buye Beach
    Puerto Rico · United States · Atlantic Ocean
    Warm — comfortable swimming
    27°C
    April average
  5. 5
    Playa Santa
    Puerto Rico · United States · Atlantic Ocean
    Warm — comfortable swimming
    27°C
    April average
  6. 6
    Caja de Muertos
    Puerto Rico · United States · Atlantic Ocean
    Warm — comfortable swimming
    27°C
    April average
  7. 7
    Seven Seas Beach
    Puerto Rico · United States · Caribbean Sea
    Warm — comfortable swimming
    27°C
    April average
  8. 8
    Playa Azul
    Puerto Rico · United States · Caribbean Sea
    Warm — comfortable swimming
    27°C
    April average
  9. 9
    Playa Mar Chiquita
    Puerto Rico · United States · Atlantic Ocean
    Warm — comfortable swimming
    27°C
    April average
  10. 10
    Cerro Gordo
    Puerto Rico · United States · Atlantic Ocean
    Warm — comfortable swimming
    27°C
    April average
  11. 11
    Ocean Park Beach
    Puerto Rico · United States · Caribbean Sea
    Warm — comfortable swimming
    27°C
    April average
  12. 12
    Isla Verde Beach
    Puerto Rico · United States · Caribbean Sea
    Warm — comfortable swimming
    27°C
    April average
  13. 13
    Pinones Beach
    Puerto Rico · United States · Caribbean Sea
    Warm — comfortable swimming
    27°C
    April average
  14. 14
    Playa El Convento
    Puerto Rico · United States · Caribbean Sea
    Warm — comfortable swimming
    27°C
    April average
  15. 15
    Playa Punta Santiago
    Puerto Rico · United States · Caribbean Sea
    Warm — comfortable swimming
    27°C
    April average
  16. 16
    Steps Beach
    Puerto Rico · United States · Atlantic Ocean
    Warm — comfortable swimming
    27°C
    April average
  17. 17
    Cinnamon Bay
    US Virgin Islands · United States · Caribbean Sea
    Warm — comfortable swimming
    27°C
    April average
  18. 18
    Coki Beach
    US Virgin Islands · United States · Caribbean Sea
    Warm — comfortable swimming
    27°C
    April average
  19. 19
    Sandy Point
    US Virgin Islands · United States · Caribbean Sea
    Warm — comfortable swimming
    27°C
    April average
  20. 20
    Bahia Honda
    Florida Keys · United States · Atlantic Ocean
    Warm — comfortable swimming
    26°C
    April average
  21. 21
    Sombrero Beach
    Florida Keys · United States · Atlantic Ocean
    Warm — comfortable swimming
    26°C
    April average
  22. 22
    Smathers Beach
    Florida Keys · United States · Atlantic Ocean
    Warm — comfortable swimming
    26°C
    April average
  23. 23
    South Beach
    Florida Atlantic · United States · Atlantic Ocean
    Warm — comfortable swimming
    25°C
    April average
  24. 24
    Bal Harbour Beach
    Florida Atlantic · United States · Atlantic Ocean
    Warm — comfortable swimming
    25°C
    April average
  25. 25
    Sunny Isles Beach
    Florida Atlantic · United States · Atlantic Ocean
    Warm — comfortable swimming
    25°C
    April average

Warmest sea in April elsewhere

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United States in April — frequently asked questions

Where is the sea warmest in United States in April?
Zoni Beach in United States has the warmest sea in United States in April, averaging about 27.0 °C. Sun Bay (27.0 °C) and Playa Jobos follow close behind.
How many beaches in United States are warm enough to swim in April?
25 of the top 25 ranked beaches in United States average 22 °C or more in April, which most swimmers find comfortable without a wetsuit.
How are these April sea temperatures calculated?
Each figure is a long-term monthly average sea surface temperature for that location, so it reflects a typical April rather than today's reading. Open a beach page for the live water temperature and 7-day forecast.

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