December Weather in Sardinal, Costa Rica

Last updated: August 23, 2025

In December, the average temperature in Sardinal, Costa Rica is a warm 27°C (80°F). Expect a comfortable range with minimums of 23°C (74°F) and maximums reaching 31°C (88°F). During this month, you can anticipate about 13 mm (0.5 in) of precipitation over 2 days, along with an average humidity of 70%. Enjoy the pleasant and vibrant weather!

December Temperature in Sardinal

In December, in Sardinal, the average temperature is a pleasant 27°C (80°F). The maximum can reach as high as 31°C (88°F), while the minimum can drop to a comfortable 23°C (74°F). This makes Sardinal an ideal destination for travelers seeking warm and enjoyable weather during this time.

December Weather in Sardinal: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Sardinal, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sardinal, December typically has an average temperature of 27°C (80°F), with highs reaching up to 31°C (88°F) and lows dropping to around 23°C (74°F).

Data source: Temperature data for Sardinal generated using information from the Copernicus Climate Change Service.

December Precipitation in Sardinal

In Sardinal in December, the precipitation amount is 13 mm (0.5 in) over a span of 2 days.

December Precipitation Trends in Sardinal

The chart displays monthly precipitation patterns in Sardinal, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Sardinal, December typically receives around 13 mm (0.5 inches) of precipitation spread over approximately 2 days.

Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

December Humidity in Sardinal

In Sardinal in December humidity is 70%. With an average temperature of 27°C (80°F), this humidity feels like you're enveloped in a warm, heavy blanket, making traveling feel a bit more challenging. The air tends to weigh you down, and you may find yourself needing to take frequent breaks to stay refreshed.

December Average Humidity in Sardinal

This chart illustrates the average monthly humidity levels in Sardinal, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Sardinal is approximately 70%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Sardinal

In Sardinal in December, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Sardinal.

Maximum UV Index Levels in Sardinal for December

The chart shows the monthly maximum UV Index (UVI) for Sardinal in December, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In December, the maximum UV index in Sardinal typically reaches 10, which falls under the very high exposure category.

Data source: Sardinal December UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How December Weather in Sardinal Compares to Other Months

Weather in Sardinal varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Sardinal, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Sardinal, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	27°C (80°F)	5 mm (0.2 inches)	66%	extreme
February Weather	27°C (81°F)	1 mm (0.0 inches)	64%	extreme
March Weather	27°C (82°F)	1 mm (0.0 inches)	63%	extreme
April Weather	28°C (83°F)	24 mm (1.0 inches)	63%	extreme
May Weather	27°C (82°F)	233 mm (9.2 inches)	63%	extreme
June Weather	27°C (81°F)	224 mm (8.8 inches)	74%	extreme
July Weather	27°C (82°F)	99 mm (3.9 inches)	85%	extreme
August Weather	27°C (81°F)	207 mm (8.1 inches)	82%	extreme
September Weather	27°C (80°F)	218 mm (8.6 inches)	80%	extreme
October Weather	26°C (80°F)	357 mm (14.1 inches)	79%	extreme
November Weather	27°C (80°F)	132 mm (5.2 inches)	79%	extreme
December Weather	27°C (80°F)	13 mm (0.5 inches)	70%	very high