San Juan (Punta Caña)
December
Weather in San Juan for December 2026
Your guide to San Juan weather in December - trends and predictions
In general, the average temperature in San Juan at the beginning of December is 31 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 27.2 °C by the end of December.
With an average of 3 rainy days, San Juan experiences minimal rainfall in December.
Is December a good time to visit San Juan? check out the best time to travel to San Juan page.
Temperatures
Rain 🌧️
More
28
Dry days
3
Rainy days
0
Snow days
29°/16°
Temperatures
9 km/h
Avg max wind
75 %
Avg humidity
San Juan Weather December
Move between months or click on a day
Temperatures trend during December in San Juan
See the weather trend as well as the moving average line
December weather in San Juan day by day
Click on a date for more information
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Dec. |  Sunny | 32° /17° | 0 mm | 6.3 | |
| 2 Dec. | Sunny | 32° /17° | 0 mm | 6.3 | |
| 3 Dec. |  Cloudy | 30° /18° | 0.3 mm | 6.3 | |
| 4 Dec. |  Partly cloudy | 30° /18° | 0 mm | 6.2 | |
| 5 Dec. |  Patchy rain possible | 31° /17° | 0 mm | 6.2 | |
| 6 Dec. | Partly cloudy | 31° /17° | 0.1 mm | 6.2 | |
| 7 Dec. | Partly cloudy | 31° /16° | 0.6 mm | 6.2 | |
| 8 Dec. | Light rain shower | 29° /17° | 0.7 mm | 6 | |
| 9 Dec. | Partly cloudy | 30° /16° | 0 mm | 6.1 | |
| 10 Dec. | Partly cloudy | 30° /17° | 0 mm | 6.1 | |
| 11 Dec. | Patchy rain possible | 30° /16° | 0.3 mm | 6.1 | |
| 12 Dec. | Patchy rain possible | 29° /16° | 0.1 mm | 6 | |
| 13 Dec. |  Light rain | 29° /14° | 5.9 mm | 6.1 | |
| 14 Dec. | Partly cloudy | 29° /15° | 0 mm | 6.1 | |
| 15 Dec. | Patchy rain possible | 29° /17° | 0.1 mm | 6 | |
| 16 Dec. | Patchy rain possible | 28° /15° | 1.8 mm | 6 | |
| 17 Dec. | Patchy rain possible | 29° /17° | 0 mm | 6 | |
| 18 Dec. | Light rain | 27° /16° | 7.6 mm | 6 | |
| 19 Dec. | Light rain shower | 29° /18° | 1.7 mm | 6 | |
| 20 Dec. | Patchy rain possible | 28° /17° | 0.2 mm | 6 | |
| 21 Dec. | Light rain shower | 28° /16° | 0.7 mm | 6 | |
| 22 Dec. | Patchy rain possible | 27° /15° | 0.3 mm | 6 | |
| 23 Dec. |  Moderate rain | 27° /16° | 11 mm | 5 | |
| 24 Dec. | Patchy rain possible | 28° /15° | 0.1 mm | 6 | |
| 25 Dec. |  Overcast | 27° /15° | 0 mm | 6 | |
| 26 Dec. | Patchy rain possible | 27° /15° | 0.1 mm | 6 | |
| 27 Dec. | Patchy rain possible | 28° /17° | 0.1 mm | 6 | |
| 28 Dec. |  Mist | 27° /16° | 0.1 mm | 5 | |
| 29 Dec. | Patchy rain possible | 27° /18° | 0.2 mm | 5 | |
| 30 Dec. | Patchy rain possible | 28° /16° | 0.2 mm | 6 | |
| 31 Dec. | Patchy rain possible | 25° /16° | 1.4 mm | 5 | |
| Next | |||||
Important Notice
Our weather forecast for San Juan 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 San Juan forecast closer to your planned date for the most up-to-date weather information.
Change Month
San Juan in December - FAQ
What are the expected maximum and minimum temperatures in San Juan during December?
During December, expect a variety of temperatures with highs around 29° and lows near 16°, suitable for diverse activities and preferences.
How much rainfall should be expected in San Juan during December?
In December, San Juan can expect light to moderate rainfall, totaling 33.7 mm across approximately 3 days. Occasional showers are possible, and planning ahead for them could be helpful.
What are the typical wind conditions in San Juan during December?
The average wind speed in San Juan during December is 9 km/h, suggesting breezy to windy conditions, depending on your activities.
San Juan water temperatures in December
The average water temperature of the Caribbean Sea near San Juan in December is 27.5 °C. At the beginning of December temperatures are around 27.7 °C; by the end of the month they stay fairly steady and reach 27.4 °C.
- What is the water temperature in San Juan in December?
- The average water temperature in San Juan in December is 27.5 °C.
- Can you swim in San Juan in December?
- Ideal conditions for families and casual swimmers. You can stay in for long swims or reef explorations with no thermal protection required.
December rainfall patterns in San Juan
Explore the daily rainfall trends and prepare for San Juans December weather 💧
Typically, San Juan has 3 rainy days in December with a total of 33.7 mm of rainfall.
UV exposure in San Juan during December
Stay informed about UV levels for safe outdoor activities throughout the month of December ☀️
Provinces in San Juan
Select a province for an accurate weather forecast
Top locations in San Juan
Select a location for an accurate weather forecast
More Locations Quick links
More San Juan weather pages
You are here
Found a mistake?
We appreciate your attention to details. Tell us here.