Weather in Cayo Santa Maria: December
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Average day temperature: | 78.5°F |
| Average night temperature: | 74.6°F | |
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Sea water temperature: | 79.3°F |
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Number of sunny days: | 9 days |
| Day length: | 10.7 - 10.9 hours | |
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Number of rainy days: | 1 day |
| Precipitation totals: | 1.0 in. | |
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forecast
| Cayo Santa Maria |
temperature
| Cayo Santa Maria |
Air temperature in December, °F
The highest day temperature during December of 2025 was 82°F. At the same time the lowest night temperature was 71°F. Daily and nightly averages during December were 79.6°F and 75.9°F.
Sea water temperature in Cayo Santa Maria in December, °F
The average sea water temperature in December of 2025 was 79.6°F. The highest and lowest sea temperatures during the month were 81.5°F and 77.4°F.
Number of sunny, partly cloudy and cloudy days in December is almost equal.
Precipitation total in December, in.
Precipitation total value in Cayo Santa Maria in December is 1.0 in. Other months of the year show relatively similar values.
The average wind speed value in December is 14.5 mph It makes December one of the most windy months of the year.
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in December is: 5.8.
Best time for vacation in Cayo Santa Maria
Cayo Santa Maria on a weather map
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