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December Weather in Castanos, Mexico

Last updated: August 26, 2025

In December, the average temperature in Castanos, Mexico hovers around 14°C (58°F). Expect a range from a chilly -4°C (25°F) at night to a warm 32°C (91°F) during the day. With an average precipitation of 21 mm (0.8 in) over about 3 days, staying dry might be a challenge. Don't forget to prepare for the high humidity, averaging a whopping 89%!

December Temperature in Castanos

In December in Castanos, the average temperature is 14°C (58°F). The maximum can reach 32°C (91°F), while the minimum can drop as low as -4°C (25°F). Travelers should be prepared for a wide range of temperatures and pack accordingly.

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

The chart illustrates December temperature patterns in Castanos, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Castanos, December typically has an average temperature of 14°C (58°F), with highs reaching up to 32°C (91°F) and lows dropping to around -4°C (25°F).
JanFebMarAprMayJunJulAugSepOctNovDec546067737981818175696257
Data source: Temperature data for Castanos 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 Castanos

In Castanos in December, the precipitation amount is 21 mm (0.8 in) over a period of 3 days.

December Precipitation Trends in Castanos

The chart displays monthly precipitation patterns in Castanos, 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 Castanos, December typically receives around 21 mm (0.8 inches) of precipitation spread over approximately 3 days.
JanFebMarAprMayJunJulAugSepOctNovDec97221949448449140441521
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Castanos

In Castanos in December humidity is 89%. With an average temperature of 14°C (58°F), this humidity feels like you're walking through a warm, thick blanket of air, making traveling feel quite muggy and uncomfortable at times.

December Average Humidity in Castanos

This chart illustrates the average monthly humidity levels in Castanos, 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 Castanos is approximately 89%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec83%74%75%74%79%77%64%61%77%83%85%89%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Castanos

In Castanos 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 Castanos, you can refer to this Hourly UV Index in Castanos.

Maximum UV Index Levels in Castanos for December

The chart shows the monthly maximum UV Index (UVI) for Castanos 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 Castanos typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec69111212121212121076
Data source: Castanos 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 Castanos Compares to Other Months

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

This table compares monthly weather conditions in Castanos, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather12°C (55°F)9 mm (0.4 inches)83%high
February Weather15°C (60°F)7 mm (0.3 inches)74%very high
March Weather19°C (67°F)22 mm (0.9 inches)75%extreme
April Weather23°C (73°F)19 mm (0.8 inches)74%extreme
May Weather26°C (79°F)49 mm (1.9 inches)79%extreme
June Weather27°C (81°F)44 mm (1.7 inches)77%extreme
July Weather27°C (81°F)84 mm (3.3 inches)64%extreme
August Weather27°C (81°F)49 mm (1.9 inches)61%extreme
September Weather24°C (75°F)139 mm (5.5 inches)77%extreme
October Weather21°C (70°F)44 mm (1.7 inches)83%very high
November Weather17°C (62°F)15 mm (0.6 inches)85%high
December Weather14°C (58°F)21 mm (0.8 inches)89%high

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