Sea temperature
Sea Temperature Today
Current water temperature and waves for every coastal place, from the Black Sea to the Mediterranean.
Of 23 coasts measured, the warmest sea right now is in Miami (30.4°C) and the coolest in Boston (15.0°C).
Sea temperature on the coasts of the United States
Warmest to coolest sea.
- MiamiFlorida30.4°C · 0.5 m
- Fort LauderdaleFlorida30.0°C
- Key WestFlorida29.8°C · 0.6 m
- Sanibel IslandFlorida29.4°C · 0.2 m
- Siesta KeyFlorida29.0°C · 0.2 m
- GalvestonTexas28.3°C · 0.7 m
- ClearwaterFlorida27.9°C · 0.2 m
- MauiHawaii27.8°C · 0.7 m
- HawaiiUnited States27.8°C · 0.7 m
- Homosassa SpringsFlorida27.6°C · 0.1 m
- Panama City BeachFlorida27.4°C · 0.4 m
- St. AugustineFlorida27.4°C · 0.3 m
- DestinFlorida27.1°C · 0.4 m
- HonoluluHawaii26.9°C · 1.3 m
- Myrtle BeachSouth Carolina25.1°C · 0.4 m
- San DiegoCalifornia22.2°C · 0.8 m
- Catalina IslandCalifornia21.8°C · 0.8 m
- DelawareUnited States20.0°C
- MontereyCalifornia19.4°C · 1.3 m
- Seaside HeightsNew Jersey18.7°C · 0.6 m
- New York CityNew York State18.3°C · 0.1 m
- San FranciscoCalifornia16.4°C · 0.5 m
- BostonMassachusetts15.0°C · 0.3 m
Sea temperature at world beaches
The 12 warmest coasts in the world right now.
Choose a country
See the report for another country.
Frequently asked questions
- What water temperature is good for swimming?
- For most people 22°C and above is comfortable, 18–22°C is cool but swimmable and below 18°C feels cold. On windy days and in shallow bays the water can differ by a few degrees; the values here are offshore model data.
Source: Open-Meteo Marine (Copernicus Marine, DWD). Values are offshore model data; bays and shallow water can differ by a few degrees.