Guanacasteca
December
Weather in Guanacasteca for December 2025
Your guide to Guanacasteca weather in December - trends and predictions
Until now, December 2025 in Guanacasteca has been nearly identical to the historical average, with a temperature of 21.5 °C (showing only a slight deviation of -0.4 °C).
The forecast for the next days in Guanacasteca predicts temperatures to be around 22 °C, close to the historical average.
In general, the average temperature in Guanacasteca at the beginning of December is 21.9 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 21.3 °C by the end of December.
Guanacasteca experiences heavy rainfall in December, with over 20 rainy days and an average total precipitation 130.3 mm.
Temperatures
Rain 🌧️
3
Dry days
28
Rainy days
0
Snow days
21°/12°
Temperatures
8 km/h
Avg max wind
87 %
Avg humidity
Guanacasteca Weather December
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Temperatures trend during December in Guanacasteca
See the weather trend as well as the moving average line
December weather in Guanacasteca day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Dec. |  Light rain shower | 22° /12° | 8.6 mm | 5 | |
| 2 Dec. | Light rain shower | 21° /11° | 15.4 mm | 5 | |
| 3 Dec. | Patchy rain possible | 21° /12° | 3.2 mm | 5 | |
| 4 Dec. | Light rain shower | 22° /11° | 6.2 mm | 5 | |
| 5 Dec. | Patchy rain possible | 23° /11° | 0.7 mm | 5 | |
| 6 Dec. | Light rain shower | 22° /11° | 3.3 mm | 5 | |
| 7 Dec. | Patchy rain possible | 22° /11° | 9.4 mm | 5 | |
| 8 Dec. | Patchy rain possible | 21° /11° | 4.3 mm | 5 | |
| 9 Dec. | Light rain shower | 22° /13° | 2.7 mm | 5 | |
| 10 Dec. |  Fog | 23° /12° | 2.1 mm | 5 | |
| 11 Dec. | Light rain shower | 22° /12° | 2.5 mm | 5 | |
| 12 Dec. | Light rain shower | 22° /13° | 1.6 mm | 5 | |
| 13 Dec. | Patchy rain possible | 21° /13° | 7 mm | 5 | |
| 14 Dec. | Fog | 22° /12° | 2.7 mm | 5 | |
| 15 Dec. | Light rain shower | 21° /12° | 1.6 mm | 5 | |
| 16 Dec. | Patchy rain possible | 22° /11° | 0.8 mm | 1.8 | |
| 17 Dec. | Patchy rain possible | 23° /11° | 1.1 mm | 2.5 | |
| 18 Dec. | Patchy rain possible | 23° /11° | 0.2 mm | 2.5 | |
| 19 Dec. | Patchy rain possible | 23° /11° | 0.3 mm | 2.5 | |
| 20 Dec. | Mist | 23° /14° | 0 mm | 0 | |
| 21 Dec. | Patchy rain possible | 22° /11° | 0 mm | 4 | |
| 22 Dec. | Patchy rain possible | 22° /11° | 0.4 mm | 3 | |
| 23 Dec. | Patchy rain possible | 23° /10° | 0.3 mm | 3 | |
| 24 Dec. | Patchy rain possible | 22° /11° | 0.5 mm | 4 | |
| 25 Dec. | Patchy rain possible | 21° /11° | 0.5 mm | 4 | |
| 26 Dec. | Patchy rain possible | 23° /12° | 0.4 mm | 4 | |
| 27 Dec. | Patchy rain possible | 20° /11° | 1 mm | 3 | |
| 28 Dec. | Patchy rain possible | 22° /9° | 0.4 mm | 3 | |
| 29 Dec. | Patchy rain possible | 22° /10° | 0.3 mm | 4 | |
| 30 Dec. | Patchy rain possible | 19° /12° | 5.1 mm | 5 | |
| 31 Dec. | Fog | 22° /11° | 2.3 mm | 5 | |
| Next | |||||
Important Notice
Our weather forecast for Guanacasteca 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 Guanacasteca forecast closer to your planned date for the most up-to-date weather information.
Change Month
Guanacasteca in December - FAQ
What are the expected maximum and minimum temperatures in Guanacasteca during December?
Enjoy moderate daytime temperatures of up to 21° and cooler nights around 12°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Guanacasteca during December?
Significant rainfall exceeding 130.3 mm is expected in Guanacasteca during December, occurring over more than 28 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Guanacasteca during December?
The average wind speed in Guanacasteca during December is 8 km/h, suggesting breezy to windy conditions, depending on your activities.
December rainfall patterns in Guanacasteca
Explore the daily rainfall trends and prepare for Guanacastecas December weather 💧
Typically, Guanacasteca has 28 rainy days in December with a total of 130.3 mm of rainfall.
UV exposure in Guanacasteca during December
Stay informed about UV levels for safe outdoor activities throughout the month of December ☀️
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