Guanacaste
December
Weather in Guanacaste for December 2026
Your guide to Guanacaste weather in December - trends and predictions
Guanacaste experiences moderate rainfall in December, with an average of 10 rainy days and a total precipitation of 63.6 mm.
Is December a good time to visit Guanacaste? check out the best time to travel to Guanacaste page.
Rain 🌧️
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21
Dry days
10
Rainy days
0
Snow days
29°/22°
Temperatures
13 km/h
Avg max wind
78 %
Avg humidity
Guanacaste Weather December
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Temperatures trend during December in Guanacaste
See the weather trend as well as the moving average line
December weather in Guanacaste day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Dec. |  Light rain | 29° /22° | 4.4 mm | 6 | |
| 2 Dec. |  Patchy rain possible | 29° /22° | 2.4 mm | 6 | |
| 3 Dec. |  Moderate rain | 28° /22° | 10.6 mm | 6 | |
| 4 Dec. | Patchy rain possible | 28° /22° | 0.3 mm | 6 | |
| 5 Dec. | Patchy rain possible | 29° /22° | 0.6 mm | 6 | |
| 6 Dec. | Patchy rain possible | 29° /21° | 1.6 mm | 6 | |
| 7 Dec. | Patchy rain possible | 29° /21° | 1.9 mm | 7 | |
| 8 Dec. | Light rain | 29° /22° | 6.5 mm | 7 | |
| 9 Dec. | Patchy rain possible | 30° /22° | 0.8 mm | 7 | |
| 10 Dec. | Patchy rain possible | 30° /22° | 0.7 mm | 7 | |
| 11 Dec. |  Overcast | 30° /22° | 0.4 mm | 7 | |
| 12 Dec. | Patchy rain possible | 30° /22° | 0.4 mm | 7 | |
| 13 Dec. | Patchy rain possible | 29° /22° | 0.1 mm | 6 | |
| 14 Dec. | Overcast | 29° /22° | 0.6 mm | 7 | |
| 15 Dec. | Overcast | 29° /22° | 0 mm | 6 | |
| 16 Dec. |  Partly cloudy | 30° /21° | 0 mm | 7.9 | |
| 17 Dec. | Overcast | 30° /22° | 0.1 mm | 7 | |
| 18 Dec. | Patchy rain possible | 30° /22° | 0.2 mm | 7 | |
| 19 Dec. | Patchy rain possible | 30° /21° | 0.2 mm | 7.9 | |
| 20 Dec. | Patchy rain possible | 29° /22° | 1.5 mm | 6 | |
| 21 Dec. | Patchy rain possible | 30° /22° | 0.3 mm | 6 | |
| 22 Dec. |  Cloudy | 29° /22° | 0 mm | 6 | |
| 23 Dec. | Cloudy | 29° /21° | 0.2 mm | 6 | |
| 24 Dec. | Overcast | 30° /22° | 0 mm | 6 | |
| 25 Dec. | Patchy rain possible | 30° /22° | 1.1 mm | 7 | |
| 26 Dec. | Patchy rain possible | 30° /22° | 1.3 mm | 6 | |
| 27 Dec. | Light rain | 30° /22° | 3 mm | 7 | |
| 28 Dec. |  Moderate rain at times | 29° /21° | 9.6 mm | 6 | |
| 29 Dec. | Moderate or heavy rain shower | 30° /21° | 8.6 mm | 6 | |
| 30 Dec. | Moderate or heavy rain shower | 30° /22° | 6.2 mm | 6 | |
| 31 Dec. | Patchy rain possible | 29° /22° | 0.1 mm | 6 | |
| Next | |||||
Important Notice
Our weather forecast for Guanacaste 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 Guanacaste forecast closer to your planned date for the most up-to-date weather information.
Change Month
Guanacaste in December - FAQ
What are the expected maximum and minimum temperatures in Guanacaste during December?
During December, expect a variety of temperatures with highs around 29° and lows near 22°, suitable for diverse activities and preferences.
How much rainfall should be expected in Guanacaste during December?
Moderate rainfall is anticipated in Guanacaste during December, with a total of 63.6 mm spread over approximately 10 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Guanacaste during December?
The average wind speed in Guanacaste during December is 13 km/h, suggesting breezy to windy conditions, depending on your activities.
December rainfall patterns in Guanacaste
Explore the daily rainfall trends and prepare for Guanacastes December weather 💧
Typically, Guanacaste has 10 rainy days in December with a total of 63.6 mm of rainfall.
UV exposure in Guanacaste during December
Stay informed about UV levels for safe outdoor activities throughout the month of December ☀️
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