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December Weather in Hercules, Mexico

Last updated: August 27, 2025

In December, the average temperature in Hercules, Mexico hovers around 12°C (54°F). While you might enjoy balmy days, be prepared for the temperature to dip as low as -4°C (25°F) and spike to a warm 29°C (84°F). Expect around 18 mm (0.7 in) of precipitation over just 2 days, contributing to a fairly high average humidity of 86%. Whether you're exploring the vibrant streets or cozying up indoors, be ready for a range of weather!

December Temperature in Hercules

In December in Hercules, the average temperature is 12°C (54°F). Maximums can reach 29°C (84°F) and minimums can be as low as -4°C (25°F). This diverse temperature range makes it essential for travelers to pack layers to accommodate both warm and chilly conditions.

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

The chart illustrates December temperature patterns in Hercules, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hercules, December typically has an average temperature of 12°C (54°F), with highs reaching up to 29°C (84°F) and lows dropping to around -4°C (25°F).
JanFebMarAprMayJunJulAugSepOctNovDec535967738083818176716254
Data source: Temperature data for Hercules 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 Hercules

In Hercules in December, the precipitation amount is 18 mm (0.7 in) over the course of 2 days.

December Precipitation Trends in Hercules

The chart displays monthly precipitation patterns in Hercules, 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 Hercules, December typically receives around 18 mm (0.7 inches) of precipitation spread over approximately 2 days.
JanFebMarAprMayJunJulAugSepOctNovDec5456101817233421918
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Hercules

In Hercules in December, humidity is 86%. With an average temperature of 12°C (54°F), this humidity feels like a damp blanket wrapping around you, making outdoor activities uncomfortable and travel challenging due to the heavy, muggy atmosphere.

December Average Humidity in Hercules

This chart illustrates the average monthly humidity levels in Hercules, 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 Hercules is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec75%65%59%59%65%69%66%60%80%83%86%86%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Hercules

In Hercules in December, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Hercules, you can refer to this Hourly UV Index in Hercules.

Maximum UV Index Levels in Hercules for December

The chart shows the monthly maximum UV Index (UVI) for Hercules 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 Hercules typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec69111313131313121076
Data source: Hercules 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 Hercules Compares to Other Months

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

This table compares monthly weather conditions in Hercules, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather11°C (53°F)5 mm (0.2 inches)75%high
February Weather15°C (60°F)4 mm (0.2 inches)65%very high
March Weather19°C (67°F)5 mm (0.2 inches)59%extreme
April Weather23°C (74°F)6 mm (0.2 inches)59%extreme
May Weather27°C (80°F)10 mm (0.4 inches)65%extreme
June Weather28°C (83°F)18 mm (0.7 inches)69%extreme
July Weather27°C (82°F)17 mm (0.7 inches)66%extreme
August Weather27°C (81°F)23 mm (0.9 inches)60%extreme
September Weather25°C (77°F)34 mm (1.4 inches)80%extreme
October Weather22°C (71°F)21 mm (0.8 inches)83%very high
November Weather16°C (62°F)9 mm (0.4 inches)86%high
December Weather12°C (54°F)18 mm (0.7 inches)86%high

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