San Carlos (La Fortuna)
December
Weather in San Carlos for December 2026
Your guide to San Carlos weather in December - trends and predictions
In general, the average temperature in San Carlos at the beginning of December is 25.5 °C. As the month progressed, temperatures tended to moderately rise, reaching an average of 27 °C by the end of December.
San Carlos experiences heavy rainfall in December, with over 20 rainy days and an average total precipitation 239.5 mm.
Is December a good time to visit San Carlos? check out the best time to travel to San Carlos page.
Temperatures
Rain 🌧️
More
4
Dry days
27
Rainy days
0
Snow days
26°/19°
Temperatures
8 km/h
Avg max wind
92 %
Avg humidity
San Carlos Weather December
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Temperatures trend during December in San Carlos
See the weather trend as well as the moving average line
December weather in San Carlos day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Dec. |  Moderate rain | 26° /19° | 18.2 mm | 6 | |
| 2 Dec. | Moderate rain | 26° /19° | 16 mm | 6 | |
| 3 Dec. |  Light rain | 25° /19° | 3 mm | 6 | |
| 4 Dec. | Moderate rain | 24° /19° | 16.8 mm | 6 | |
| 5 Dec. | Light rain | 25° /19° | 8.9 mm | 6 | |
| 6 Dec. | Light rain | 26° /18° | 8.7 mm | 6 | |
| 7 Dec. | Light rain | 27° /19° | 8 mm | 6 | |
| 8 Dec. | Light rain | 29° /19° | 3.4 mm | 7 | |
| 9 Dec. | Moderate rain | 26° /19° | 10 mm | 6 | |
| 10 Dec. | Light rain | 26° /19° | 9.7 mm | 6 | |
| 11 Dec. | Light rain | 26° /19° | 9.3 mm | 6 | |
| 12 Dec. | Moderate rain | 25° /19° | 15.2 mm | 6 | |
| 13 Dec. | Light rain | 27° /20° | 9.4 mm | 6 | |
| 14 Dec. | Moderate rain | 25° /20° | 11.7 mm | 6 | |
| 15 Dec. | Light rain | 25° /19° | 4.9 mm | 6 | |
| 16 Dec. | Light rain | 27° /18° | 4.4 mm | 6 | |
| 17 Dec. | Light rain | 26° /19° | 4.1 mm | 6 | |
| 18 Dec. |  Patchy rain possible | 27° /19° | 1.8 mm | 6 | |
| 19 Dec. | Light rain | 25° /18° | 7.6 mm | 5 | |
| 20 Dec. | Light rain | 25° /18° | 9 mm | 4 | |
| 21 Dec. | Light rain | 24° /18° | 6.5 mm | 4 | |
| 22 Dec. | Light rain | 27° /19° | 4.1 mm | 5 | |
| 23 Dec. | Light rain | 25° /18° | 3.1 mm | 4 | |
| 24 Dec. | Light rain | 27° /19° | 3.7 mm | 5 | |
| 25 Dec. | Light rain | 28° /19° | 6.5 mm | 4 | |
| 26 Dec. | Light rain | 27° /22° | 6.3 mm | 5 | |
| 27 Dec. | Light rain | 31° /21° | 3.3 mm | 5 | |
| 28 Dec. | Light rain | 26° /20° | 4.1 mm | 4 | |
| 29 Dec. | Light rain | 28° /20° | 4.6 mm | 4 | |
| 30 Dec. | Moderate rain | 24° /19° | 11.7 mm | 4 | |
| 31 Dec. | Light rain | 25° /18° | 5.6 mm | 5 | |
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Important Notice
Our weather forecast for San Carlos 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 Carlos forecast closer to your planned date for the most up-to-date weather information.
Change Month
San Carlos in December - FAQ
What are the expected maximum and minimum temperatures in San Carlos during December?
During December, expect a variety of temperatures with highs around 26° and lows near 19°, suitable for diverse activities and preferences.
How much rainfall should be expected in San Carlos during December?
Significant rainfall exceeding 239.5 mm is expected in San Carlos during December, occurring over more than 27 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in San Carlos during December?
The average wind speed in San Carlos during December is 8 km/h, suggesting breezy to windy conditions, depending on your activities.
December rainfall patterns in San Carlos
Explore the daily rainfall trends and prepare for San Carloss December weather 💧
Typically, San Carlos has 27 rainy days in December with a total of 239.5 mm of rainfall.
UV exposure in San Carlos during December
Stay informed about UV levels for safe outdoor activities throughout the month of December ☀️
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