Grand Cayman
December
Weather in Grand Cayman for December 2025
Your guide to Grand Cayman weather in December - trends and predictions
Until now, December 2025 in Grand Cayman has been nearly identical to the historical average, with a temperature of 27.6 °C (showing only a slight deviation of 0.2 °C).
Expect cooler weather in the next days in Grand Cayman with the forecast suggesting a temperature of 25.7 °C, lower than the historical average.
In general, the average temperature in Grand Cayman at the beginning of December is 27.4 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 26.4 °C by the end of December.
Grand Cayman in December brings notable rainfall, with an average of 17 rainy days and a total precipitation of 59.7 mm.
Temperatures
Rain 🌧️
14
Dry days
17
Rainy days
0
Snow days
27°/25°
Temperatures
32 km/h
Avg max wind
82 %
Avg humidity
Grand Cayman Weather December
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Temperatures trend during December in Grand Cayman
See the weather trend as well as the moving average line
December weather in Grand Cayman day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Dec. |  Moderate or heavy rain shower | 28° /26° | 4.6 mm | 6 | |
| 2 Dec. |  Patchy rain possible | 28° /26° | 0.2 mm | 7 | |
| 3 Dec. | Patchy rain possible | 27° /25° | 0.2 mm | 6 | |
| 4 Dec. | Patchy rain possible | 26° /25° | 0.1 mm | 6 | |
| 5 Dec. | Patchy rain possible | 28° /25° | 0.1 mm | 7 | |
| 6 Dec. | Patchy rain possible | 28° /26° | 0.1 mm | 6 | |
| 7 Dec. | Patchy rain possible | 27° /25° | 0.2 mm | 6 | |
| 8 Dec. | Patchy rain possible | 27° /24° | 0.1 mm | 7 | |
| 9 Dec. | Moderate rain at times | 28° /25° | 2.2 mm | 7 | |
| 10 Dec. | Moderate rain at times | 29° /26° | 0.9 mm | 6 | |
| 11 Dec. |  Partly cloudy | 27° /26° | 13 mm | 7 | |
| 12 Dec. | Moderate rain at times | 28° /25° | 4.3 mm | 6 | |
| 13 Dec. | Patchy rain possible | 29° /26° | 0.5 mm | 7 | |
| 14 Dec. |  Overcast | 27° /26° | 0.3 mm | 7 | |
| 15 Dec. | Patchy rain possible | 28° /25° | 0.7 mm | 6 | |
| 16 Dec. |  Heavy rain at times | 28° /26° | 2.3 mm | 7 | |
| 17 Dec. | Moderate or heavy rain shower | 28° /26° | 5.5 mm | 7 | |
| 18 Dec. | Patchy rain possible | 29° /25° | 0.2 mm | 7 | |
| 19 Dec. | Patchy rain possible | 27° /25° | 0.9 mm | 6 | |
| 20 Dec. | Moderate rain at times | 26° /25° | 0.9 mm | 5 | |
| 21 Dec. | Patchy rain possible | 26° /25° | 0.6 mm | 5 | |
| 22 Dec. | Moderate rain at times | 27° /25° | 1.4 mm | 5 | |
| 23 Dec. | Moderate rain at times | 27° /25° | 1 mm | 5 | |
| 24 Dec. | Patchy rain possible | 27° /26° | 2.8 mm | 4 | |
| 25 Dec. | Moderate rain at times | 27° /25° | 6.2 mm | 5 | |
| 26 Dec. | Patchy rain possible | 26° /24° | 0.3 mm | 4 | |
| 27 Dec. | Heavy rain at times | 26° /25° | 2.5 mm | 5 | |
| 28 Dec. |  Sunny | 29° /26° | 0 mm | 1.5 | |
| 29 Dec. | Partly cloudy | 26° /25° | 0 mm | 1.4 | |
| 30 Dec. | Partly cloudy | 25° /24° | 0 mm | 1.2 | |
| 31 Dec. | Patchy rain possible | 26° /25° | 1.1 mm | 1.6 | |
| Next | |||||
Important Notice
Our weather forecast for Grand Cayman in December is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Grand Cayman forecast closer to your planned date for the most up-to-date weather information.
Change Month
Grand Cayman in December - FAQ
What are the expected maximum and minimum temperatures in Grand Cayman during December?
During December, expect a variety of temperatures with highs around 27° and lows near 25°, suitable for diverse activities and preferences.
How much rainfall should be expected in Grand Cayman during December?
Moderate rainfall is anticipated in Grand Cayman during December, with a total of 59.7 mm spread over approximately 17 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Grand Cayman during December?
The average wind speed in Grand Cayman during December is 32 km/h, suggesting breezy to windy conditions, depending on your activities.
December rainfall patterns in Grand Cayman
Explore the daily rainfall trends and prepare for Grand Caymans December weather 💧
Typically, Grand Cayman has 17 rainy days in December with a total of 59.7 mm of rainfall.
UV exposure in Grand Cayman during December
Stay informed about UV levels for safe outdoor activities throughout the month of December ☀️
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