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December Weather in El Castillo, Mexico

Last updated: August 27, 2025

In December, the average temperature in El Castillo, Mexico hovers around 13°C (56°F), with a minimum dipping to 0°C (32°F) and a maximum peaking at 26°C (79°F). Expect 9 mm (0.4 in) of precipitation spread over 2 days, while the average humidity sits comfortably at 74%. Enjoy the variety this month brings!

December Temperature in El Castillo

In December in El Castillo, the average temperature is 13°C (56°F). Maximum temperatures can reach 26°C (79°F), while minimum temperatures can drop as low as 0°C (32°F). It's advisable to pack layers to stay comfortable during your travels.

December Weather in El Castillo: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in El Castillo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In El Castillo, December typically has an average temperature of 13°C (56°F), with highs reaching up to 26°C (79°F) and lows dropping to around 0°C (32°F).
JanFebMarAprMayJunJulAugSepOctNovDec555862656765636363625855
Data source: Temperature data for El Castillo 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 El Castillo

In El Castillo in December, the precipitation amount is 9 mm (0.4 in) over the course of 2 days.

December Precipitation Trends in El Castillo

The chart displays monthly precipitation patterns in El Castillo, 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 El Castillo, December typically receives around 9 mm (0.4 inches) of precipitation spread over approximately 2 days.
JanFebMarAprMayJunJulAugSepOctNovDec2020241376252433415320135559
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in El Castillo

In El Castillo in December humidity is 74%. With an average temperature of 13°C (56°F), this humidity feels like a damp chill that can make outdoor activities uncomfortable, especially for travelers unaccustomed to such conditions.

December Average Humidity in El Castillo

This chart illustrates the average monthly humidity levels in El Castillo, 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 El Castillo is approximately 74%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec70%64%54%61%75%83%83%85%85%79%76%75%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in El Castillo

In El Castillo in December, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in El Castillo.

Maximum UV Index Levels in El Castillo for December

The chart shows the monthly maximum UV Index (UVI) for El Castillo 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 El Castillo typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec911141414141313141298
Data source: El Castillo 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 El Castillo Compares to Other Months

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

This table compares monthly weather conditions in El Castillo, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather13°C (55°F)20 mm (0.8 inches)70%very high
February Weather14°C (58°F)20 mm (0.8 inches)64%extreme
March Weather17°C (63°F)24 mm (0.9 inches)54%extreme
April Weather19°C (66°F)13 mm (0.5 inches)61%extreme
May Weather19°C (67°F)76 mm (3.0 inches)75%extreme
June Weather18°C (66°F)252 mm (9.9 inches)83%extreme
July Weather17°C (63°F)432 mm (17.0 inches)83%extreme
August Weather17°C (63°F)415 mm (16.3 inches)85%extreme
September Weather17°C (63°F)320 mm (12.6 inches)85%extreme
October Weather17°C (62°F)135 mm (5.3 inches)79%extreme
November Weather15°C (59°F)55 mm (2.2 inches)76%very high
December Weather13°C (56°F)9 mm (0.4 inches)74%very high

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