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December Weather in Barillas, Guatemala

Last updated: August 23, 2025

In Barillas, Guatemala, the average temperature in December hovers around 16°C (61°F). Enjoy mild conditions with a minimum of 6°C (44°F) and a pleasant maximum of 25°C (77°F). Expect 89 mm (3.5 in) of precipitation over 14 days, contributing to a relatively high average humidity of 76%.

December Temperature in Barillas

In December in Barillas, the average temperature is 16°C (61°F). The maximum can reach 25°C (77°F) and the minimum can be as low as 6°C (44°F). This makes Barillas a comfortable destination for travelers looking to enjoy mild weather.

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

The chart illustrates December temperature patterns in Barillas, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Barillas, December typically has an average temperature of 16°C (61°F), with highs reaching up to 25°C (77°F) and lows dropping to around 6°C (44°F).
JanFebMarAprMayJunJulAugSepOctNovDec606263666867666767666361
Data source: Temperature data for Barillas generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Barillas

In Barillas in December, the precipitation amount is 89 mm (3.5 in) over a span of 14 days.

December Precipitation Trends in Barillas

The chart displays monthly precipitation patterns in Barillas, 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 Barillas, December typically receives around 89 mm (3.5 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec10157449822857912722227830016889
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Barillas

In Barillas in December humidity is 76%. With an average temperature of 16°C (61°F), this humidity feels like a warm embrace that makes traveling feel slightly heavy yet refreshing, often prompting you to seek shade or indulge in ice-cold drinks to stay comfortable.

December Average Humidity in Barillas

This chart illustrates the average monthly humidity levels in Barillas, 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 Barillas is approximately 76%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%68%59%57%65%66%75%82%82%83%80%76%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Barillas

In Barillas 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 Barillas.

Maximum UV Index Levels in Barillas for December

The chart shows the monthly maximum UV Index (UVI) for Barillas 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 Barillas typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec111315151515151414131110
Data source: Barillas 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 Barillas Compares to Other Months

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

This table compares monthly weather conditions in Barillas, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather16°C (60°F)101 mm (4.0 inches)76%extreme
February Weather17°C (62°F)57 mm (2.3 inches)68%extreme
March Weather17°C (63°F)44 mm (1.7 inches)59%extreme
April Weather19°C (67°F)98 mm (3.9 inches)57%extreme
May Weather20°C (69°F)228 mm (9.0 inches)65%extreme
June Weather20°C (68°F)579 mm (22.8 inches)66%extreme
July Weather19°C (67°F)127 mm (5.0 inches)75%extreme
August Weather19°C (67°F)222 mm (8.7 inches)82%extreme
September Weather19°C (67°F)278 mm (10.9 inches)82%extreme
October Weather19°C (67°F)300 mm (11.8 inches)83%extreme
November Weather17°C (63°F)168 mm (6.6 inches)80%extreme
December Weather16°C (61°F)89 mm (3.5 inches)76%very high

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