Seasonal ranking
Coldest sea temperature in Florida Keys in December
Where the sea is coolest across Florida Keys during December, ranked by long-term monthly average water temperature. Bahia Honda (Florida Keys, United States) is the coolest at around 24°C. Open any spot for today's live water temperature and a 7-day swim forecast.
- 1Bahia HondaFlorida Keys · United States · Atlantic OceanWarm — comfortable swimming24°CDecember average
- 2Sombrero BeachFlorida Keys · United States · Atlantic OceanWarm — comfortable swimming24°CDecember average
- 3Smathers BeachFlorida Keys · United States · Atlantic OceanWarm — comfortable swimming24°CDecember average
Coldest sea in December elsewhere
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Florida Keys in December — frequently asked questions
- Where is the sea coldest in Florida Keys in December?
- Bahia Honda in United States has the coldest sea in Florida Keys in December, averaging about 24.0 °C. Sombrero Beach (24.0 °C) and Smathers Beach are the next coolest.
- How many beaches in Florida Keys are warm enough to swim in December?
- 3 of the top 3 ranked beaches in Florida Keys average 22 °C or more in December, which most swimmers find comfortable without a wetsuit.
- How are these December sea temperatures calculated?
- Each figure is a long-term monthly average sea surface temperature for that location, so it reflects a typical December rather than today's reading. Open a beach page for the live water temperature and 7-day forecast.
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