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December Weather in Casa Blanca, Mexico

Last updated: August 27, 2025

In December, the average temperature in Casa Blanca, Mexico hovers around 14°C (57°F), with lows dipping to a chilly -2°C (28°F) and highs reaching up to a warm 28°C (82°F). Expect minimal rain, with only 4 mm (0.1 in) of precipitation spread across 0 days. The air is quite humid, boasting an average humidity level of 91%, making for a unique atmosphere throughout the month.

December Temperature in Casa Blanca

In December in Casa Blanca, the average temperature is 14°C (57°F), with maximums reaching 28°C (82°F) and minimums dropping as low as -2°C (28°F). This variation makes it essential for travelers to pack layers to stay comfortable during both warm days and chilly nights.

December Weather in Casa Blanca: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Casa Blanca, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Casa Blanca, December typically has an average temperature of 14°C (57°F), with highs reaching up to 28°C (82°F) and lows dropping to around -2°C (28°F).
JanFebMarAprMayJunJulAugSepOctNovDec566064676967656564625957
Data source: Temperature data for Casa Blanca 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 Casa Blanca

In Casa Blanca in December, the precipitation amount is 4 mm (0.1 in) recorded over a span of 0 days.

December Precipitation Trends in Casa Blanca

The chart displays monthly precipitation patterns in Casa Blanca, 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 Casa Blanca, December typically receives around 4 mm (0.1 inches) of precipitation spread over approximately 0 days.
JanFebMarAprMayJunJulAugSepOctNovDec8715223711610911413277184
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Casa Blanca

In Casa Blanca in December humidity is 91%. With an average temperature of 14°C (57°F), this humidity feels like a blanket of dampness enveloping you, making outdoor activities feel heavy and uncomfortable for traveling.

December Average Humidity in Casa Blanca

This chart illustrates the average monthly humidity levels in Casa Blanca, 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 Casa Blanca is approximately 91%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%86%83%80%82%79%72%74%84%92%91%91%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Casa Blanca

In Casa Blanca 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 Casa Blanca.

Maximum UV Index Levels in Casa Blanca for December

The chart shows the monthly maximum UV Index (UVI) for Casa Blanca 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 Casa Blanca typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec9111414151415141412108
Data source: Casa Blanca 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 Casa Blanca Compares to Other Months

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

This table compares monthly weather conditions in Casa Blanca, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather13°C (56°F)8 mm (0.3 inches)88%very high
February Weather16°C (60°F)7 mm (0.3 inches)86%extreme
March Weather18°C (64°F)15 mm (0.6 inches)83%extreme
April Weather20°C (68°F)22 mm (0.9 inches)80%extreme
May Weather21°C (70°F)37 mm (1.5 inches)82%extreme
June Weather19°C (67°F)116 mm (4.6 inches)79%extreme
July Weather18°C (65°F)109 mm (4.3 inches)72%extreme
August Weather18°C (65°F)114 mm (4.5 inches)74%extreme
September Weather18°C (64°F)132 mm (5.2 inches)84%extreme
October Weather17°C (62°F)77 mm (3.0 inches)92%extreme
November Weather15°C (59°F)18 mm (0.7 inches)91%very high
December Weather14°C (57°F)4 mm (0.1 inches)91%very high

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