Arenal Viejo
December
Weather in Arenal Viejo for December 2025
Your guide to Arenal Viejo weather in December - trends and predictions
Until now, December 2025 in Arenal Viejo has been nearly identical to the historical average, with a temperature of 27.6 °C (showing only a slight deviation of -0.4 °C).
The forecast for the next days in Arenal Viejo predicts temperatures to be around 27 °C, close to the historical average.
In general, the average temperature in Arenal Viejo at the beginning of December is 28 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 27.4 °C by the end of December.
The climate of Arenal Viejo in December is notably wet, with an average of 13 rainy days, and a total of 57.1 mm of precipitation.
Temperatures
Rain 🌧️
18
Dry days
13
Rainy days
0
Snow days
28°/23°
Temperatures
10 km/h
Avg max wind
77 %
Avg humidity
Arenal Viejo Weather December
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Temperatures trend during December in Arenal Viejo
See the weather trend as well as the moving average line
December weather in Arenal Viejo day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Dec. |  Light rain shower | 28° /23° | 3.9 mm | 6 | |
| 2 Dec. | Patchy rain possible | 26° /23° | 2.3 mm | 6 | |
| 3 Dec. | Patchy rain possible | 29° /23° | 0 mm | 7 | |
| 4 Dec. | Patchy rain possible | 29° /23° | 0.7 mm | 6 | |
| 5 Dec. | Patchy rain possible | 28° /22° | 0.9 mm | 6 | |
| 6 Dec. | Light rain shower | 28° /22° | 2 mm | 6 | |
| 7 Dec. | Patchy rain possible | 28° /23° | 3 mm | 6 | |
| 8 Dec. | Patchy rain possible | 28° /22° | 7.3 mm | 6 | |
| 9 Dec. | Light rain shower | 28° /22° | 3 mm | 6 | |
| 10 Dec. | Patchy rain possible | 28° /22° | 0.4 mm | 6 | |
| 11 Dec. | Patchy rain possible | 28° /23° | 1.1 mm | 6 | |
| 12 Dec. | Patchy rain possible | 29° /22° | 0.2 mm | 6 | |
| 13 Dec. | Patchy rain possible | 27° /21° | 1.3 mm | 2 | |
| 14 Dec. | Patchy rain possible | 28° /21° | 3.6 mm | 1.8 | |
| 15 Dec. | Patchy rain possible | 24° /21° | 1.1 mm | 1.8 | |
| 16 Dec. | Patchy rain possible | 27° /21° | 1 mm | 1.9 | |
| 17 Dec. | Patchy rain possible | 27° /21° | 0.2 mm | 0 | |
| 18 Dec. | Patchy rain possible | 28° /21° | 1.1 mm | 5 | |
| 19 Dec. | Patchy rain possible | 28° /21° | 0.5 mm | 5 | |
| 20 Dec. | Patchy rain possible | 28° /22° | 0.3 mm | 5 | |
| 21 Dec. | Patchy rain possible | 28° /21° | 0.4 mm | 5 | |
| 22 Dec. | Patchy rain possible | 28° /21° | 0.2 mm | 5 | |
| 23 Dec. | Patchy rain possible | 28° /21° | 0.3 mm | 5 | |
| 24 Dec. | Patchy rain possible | 28° /21° | 0.2 mm | 5 | |
| 25 Dec. | Patchy rain possible | 28° /21° | 0.3 mm | 5 | |
| 26 Dec. | Patchy rain possible | 27° /20° | 0.4 mm | 5 | |
| 27 Dec. | Light rain shower | 28° /23° | 2.3 mm | 6 | |
| 28 Dec. |  Patchy light rain | 28° /24° | 6.3 mm | 6 | |
| 29 Dec. |  Moderate or heavy rain shower | 28° /24° | 14.5 mm | 6 | |
| 30 Dec. | Light rain shower | 26° /23° | 6.3 mm | 6 | |
| 31 Dec. | Patchy rain possible | 27° /23° | 5.7 mm | 6 | |
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Important Notice
Our weather forecast for Arenal Viejo 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 Arenal Viejo forecast closer to your planned date for the most up-to-date weather information.
Change Month
Arenal Viejo in December - FAQ
What are the expected maximum and minimum temperatures in Arenal Viejo during December?
During December, expect a variety of temperatures with highs around 28° and lows near 23°, suitable for diverse activities and preferences.
How much rainfall should be expected in Arenal Viejo during December?
Moderate rainfall is anticipated in Arenal Viejo during December, with a total of 57.1 mm spread over approximately 13 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Arenal Viejo during December?
The average wind speed in Arenal Viejo during December is 10 km/h, suggesting breezy to windy conditions, depending on your activities.
December rainfall patterns in Arenal Viejo
Explore the daily rainfall trends and prepare for Arenal Viejos December weather 💧
Typically, Arenal Viejo has 13 rainy days in December with a total of 57.1 mm of rainfall.
UV exposure in Arenal Viejo during December
Stay informed about UV levels for safe outdoor activities throughout the month of December ☀️
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