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Cayo Costa Sea Temperature in December

Florida, United States

November Cayo Costa year-round → January

Average sea temperature for Cayo Costa, United States across December, based on 10 years of daily readings.

Average

21.38° C

High

23.98° C

Low

17.84° C

Water at this temperature is very pleasant to swim in. If you tend to wear a wetsuit when swimming, you might consider removing it now to avoid the body overheating.

December is the 10th warmest of 12 months at Cayo Costa. On average the water sits 4.0° than the year-round mean of 25.41° C.

Compared to November, December is 3.0° cooler than (24.42° C in November). By January the water is usually 19.13° C.

Cayo Costa Day-by-Day Water Temperature in December

10-year low, average and high

16.5° C
18.6° C
20.8° C
22.9° C
25.0° C
1
5
10
15
20
25
31
Day-by-day low and high band with the 10-year daily average through December. Range Average

Each vertical bar above is one day of December. The shaded band covers the range the water has reached on that day across the last 10 years — the lowest reading at the bottom, the highest at the top. The line running through the bars is the daily average over those 10 years, so you can see the typical shape of the month at Cayo Costa.

A narrow band means the temperature on that day has stayed close to the average year on year. A taller band means it has swung more, often because of changeable weather around that time of year. Hovering a day pulls up its low, average, and high.

December Water Temperature Table for Cayo Costa

10-year daily averages

Day Average Low High
December 1 22.59° C 21.24° C 23.98° C
December 2 22.44° C 21.12° C 23.64° C
December 3 22.29° C 21.07° C 23.4° C
December 4 22.22° C 20.4° C 23.44° C
December 5 22.22° C 20.1° C 23.45° C
December 6 22.22° C 20.11° C 23.63° C
December 7 22.1° C 20.13° C 23.71° C
December 8 22.02° C 20.12° C 23.69° C
December 9 21.93° C 20.22° C 23.54° C
December 10 21.69° C 20.22° C 23.34° C
December 11 21.63° C 20.34° C 23.16° C
December 12 21.59° C 19.84° C 23.18° C
December 13 21.55° C 19.32° C 23.25° C
December 14 21.5° C 19.08° C 23.27° C
December 15 21.46° C 19.18° C 23.21° C
December 16 21.39° C 19.43° C 23.14° C
December 17 21.41° C 20.06° C 22.81° C
December 18 21.48° C 20.32° C 22.98° C
December 19 21.4° C 20.04° C 23.25° C
December 20 21.32° C 19.54° C 23.23° C
December 21 21.22° C 19.19° C 23.12° C
December 22 20.97° C 19.07° C 22.8° C
December 23 20.72° C 18.84° C 22.43° C
December 24 20.53° C 18.64° C 22.14° C
December 25 20.54° C 18.5° C 22.14° C
December 26 20.36° C 18.57° C 21.92° C
December 27 20.29° C 18.62° C 21.98° C
December 28 20.35° C 18.14° C 22.1° C
December 29 20.41° C 17.84° C 22.28° C
December 30 20.43° C 17.93° C 21.95° C
December 31 20.49° C 18.76° C 22.18° C

Where December Sits in the Year

December highlighted

12.5° C
18.1° C
23.8° C
29.4° C
35.0° C
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
19.13° C
19.64° C
21.71° C
24.05° C
26.63° C
29.07° C
30.58° C
30.66° C
29.96° C
27.65° C
24.42° C
21.38° C
10-year monthly history for Cayo Costa. Bars span historical low to high; the line marks the monthly average. Range Average
January → February → March → April → May → June → July → August → September → October → November → December →

Nearby Locations in December

Compare other United States water for the same month

Cayo Costa Location

26.6708, -82.2502

26.67075, -82.25018 View on OpenStreetMap →

Cayo Costa sits at 26.6708°N, 82.2502°W, on the coast of Florida, United States. The marker on the map shows the spot the readings on this page come from. It usually sits a short distance from the town centre, out on the open water itself, so the numbers stay tied to the coast rather than a generic point inland.

Coastlines bend, headlands focus the water, and the temperature can run noticeably differently between two beaches that look close together on a map. Comparing nearby locations is a quick way to see how local geography is shaping the readings.

Nearest locations to Cayo Costa