Seasonal ranking
Coldest sea temperature in Saint Lucia in December
Where the sea is coolest across Saint Lucia during December, ranked by long-term monthly average water temperature. Reduit Beach (Gros Islet, Saint Lucia) is the coolest at around 27°C. Open any spot for today's live water temperature and a 7-day swim forecast.
- 1Reduit BeachGros Islet · Saint Lucia · Caribbean SeaWarm — comfortable swimming27°CDecember average
- 2Anse ChastanetSoufriere · Saint Lucia · Caribbean SeaWarm — comfortable swimming27°CDecember average
- 3Marigot Bay BeachCastries · Saint Lucia · Caribbean SeaWarm — comfortable swimming27°CDecember average
- 4Vigie BeachCastries · Saint Lucia · Caribbean SeaWarm — comfortable swimming27°CDecember average
- 5Anse CochonSaint Lucia · Saint Lucia · Caribbean SeaWarm — comfortable swimming27°CDecember average
Coldest sea in December elsewhere
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Saint Lucia in December — frequently asked questions
- Where is the sea coldest in Saint Lucia in December?
- Reduit Beach in Saint Lucia has the coldest sea in Saint Lucia in December, averaging about 27.0 °C. Anse Chastanet (27.0 °C) and Marigot Bay Beach are the next coolest.
- How many beaches in Saint Lucia are warm enough to swim in December?
- 5 of the top 5 ranked beaches in Saint Lucia 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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