Weather in San Juan for December 2024
Until now, December 2024 in San Juan has been nearly identical to the historical average, with a temperature of 27.9 °C (showing only a slight deviation of -0.5 °C).
The forecast for the next days in San Juan predicts temperatures to be around 26 °C, close to the historical average.
In general, the average temperature in San Juan at the beginning of December is 29.6 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 25.7 °C by the end of December.
San Juan in December brings notable rainfall, with an average of 17 rainy days and a total precipitation of 106.3 mm.
Is December a good time to visit San Juan? check out the best time to travel to San Juan page.
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San Juan in December average weather
| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  29° | ||||||
| 2  31° | 3 29° | 4 31° | 5 30° | 6  29° | 7  28° | 8 28° |
| 9 28° | 10 27° | 11 28° | 12  27° | 13 27° | 14 28° | 15 28° |
| 16 28° | 17 27° | 18 28° | 19 28° | 20 27° | 21 28° | 22  28° |
| 23 29° | 24 27° | 25 27° | 26 27° | 27 26° | 28 25° | 29 25° |
| 30 25° | 31 25° |
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Temperatures trend during December in San Juan
December weather day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Dec. | Cloudy | 29° /25° | 3.7 mm | 6 | |
| 2 Dec. | Light rain shower | 31° /25° | 1.8 mm | 7 | |
| 3 Dec. | Light rain shower | 29° /25° | 1 mm | 7 | |
| 4 Dec. | Cloudy | 31° /24° | 0 mm | 7 | |
| 5 Dec. | Light rain shower | 30° /24° | 0.4 mm | 7 | |
| 6 Dec. | Partly cloudy | 29° /24° | 0 mm | 7 | |
| 7 Dec. | Fog | 28° /23° | 6.4 mm | 6 | |
| 8 Dec. | Light rain shower | 28° /24° | 0.5 mm | 7 | |
| 9 Dec. | Patchy rain possible | 28° /24° | 14 mm | 6 | |
| 10 Dec. | Light rain shower | 27° /24° | 22.8 mm | 6 | |
| 11 Dec. | Light rain shower | 28° /23° | 17.3 mm | 6 | |
| 12 Dec. | Patchy light drizzle | 27° /24° | 0.9 mm | 6 | |
| 13 Dec. | Light rain shower | 27° /24° | 33.8 mm | 6 | |
| 14 Dec. | Light rain shower | 28° /24° | 14.5 mm | 6 | |
| 15 Dec. | Light rain shower | 28° /23° | 23.5 mm | 6 | |
| 16 Dec. | Light rain shower | 28° /23° | 13.9 mm | 6 | |
| 17 Dec. | Light rain shower | 27° /24° | 21.8 mm | 6 | |
| 18 Dec. | Patchy rain possible | 28° /24° | 24.1 mm | 6 | |
| 19 Dec. | Partly cloudy | 28° /23° | 19.8 mm | 7 | |
| 20 Dec. | Patchy rain possible | 27° /23° | 1.7 mm | 6 | |
| 21 Dec. | Patchy rain possible | 28° /23° | 0.3 mm | 6 | |
| 22 Dec. | Moderate rain | 28° /25° | 7.2 mm | 1.4 | |
| 23 Dec. | Moderate rain | 29° /25° | 8.9 mm | 1.4 | |
| 24 Dec. | Partly cloudy | 27° /26° | 0 mm | 1.4 | |
| 25 Dec. | Patchy rain possible | 27° /24° | 2.4 mm | 1.4 | |
| 26 Dec. | Moderate rain | 27° /24° | 5.4 mm | 0.1 | |
| 27 Dec. | Patchy rain possible | 26° /23° | 1.5 mm | 5 | |
| 28 Dec. | Patchy rain possible | 25° /23° | 1.3 mm | 5 | |
| 29 Dec. | Patchy rain possible | 25° /23° | 0.5 mm | 5 | |
| 30 Dec. | Patchy rain possible | 25° /22° | 2.3 mm | 5 | |
| 31 Dec. | Patchy rain possible | 25° /22° | 3.4 mm | 5 | |
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San Juan in December - FAQ
What to pack to San Juan in December?
As you prepare for your trip to San Juan in December, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in San Juan, during December, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Lightweight Clothing: T-shirts, blouses, shorts, skirts
- Rain Gear: Lightweight, waterproof clothing
- Footwear
- Waterproof Shoes
- Accessories
- Sunglasses: For sun protection
- Sun Hats: Wide-brimmed hats for sun protection in warm weather
- Umbrellas/Raincoats: For rainy days
- Personal Items
- Sunscreen: High SPF for sunny destinations
- Lip Balm with SPF: To protect against chapped lips
December rainfall patterns in San Juan
UV exposure in San Juan during December
Quick links
Where is San Juan?Get accurate weather forecasts for San Juan, located at latitude 18.466 and longitude -66.106. Stay updated with localized weather information tailored for San Juan.