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December Weather in Arroyo Seco, Mexico

Last updated: August 27, 2025

In December, the average temperature in Arroyo Seco, Mexico is a pleasant 15°C (60°F). However, temperatures can vary significantly, dropping as low as -1°C (31°F) and soaring up to 31°C (88°F). During this month, expect about 15 mm (0.6 in) of precipitation spread over 4 days, while the air maintains a high average humidity of 91%.

December Temperature in Arroyo Seco

In December in Arroyo Seco, the average temperature is 15°C (60°F), with maximums reaching 31°C (88°F) and minimums dropping as low as -1°C (31°F). This temperature variation makes it essential for travelers to pack accordingly for both warm days and chilly nights.

December Weather in Arroyo Seco: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Arroyo Seco, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Arroyo Seco, December typically has an average temperature of 15°C (60°F), with highs reaching up to 31°C (88°F) and lows dropping to around -1°C (31°F).
JanFebMarAprMayJunJulAugSepOctNovDec596368737675747472696360
Data source: Temperature data for Arroyo Seco 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 Arroyo Seco

In Arroyo Seco in December, the precipitation amount is 15 mm (0.6 in) occurring over the course of 4 days.

December Precipitation Trends in Arroyo Seco

The chart displays monthly precipitation patterns in Arroyo Seco, 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 Arroyo Seco, December typically receives around 15 mm (0.6 inches) of precipitation spread over approximately 4 days.
JanFebMarAprMayJunJulAugSepOctNovDec20212524561321221031781544115
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Arroyo Seco

In Arroyo Seco in December, humidity is 91%. With an average temperature of 15°C (60°F), this humidity feels like traveling through a warm, damp blanket, making every step heavier and the air thick, which can be quite uncomfortable for most travelers.

December Average Humidity in Arroyo Seco

This chart illustrates the average monthly humidity levels in Arroyo Seco, 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 Arroyo Seco 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 Arroyo Seco

In Arroyo Seco in December, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Arroyo Seco.

Maximum UV Index Levels in Arroyo Seco for December

The chart shows the monthly maximum UV Index (UVI) for Arroyo Seco 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 Arroyo Seco typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec810131413131413131197
Data source: Arroyo Seco 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 Arroyo Seco Compares to Other Months

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

This table compares monthly weather conditions in Arroyo Seco, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather15°C (59°F)20 mm (0.8 inches)88%very high
February Weather17°C (63°F)21 mm (0.8 inches)86%very high
March Weather20°C (68°F)25 mm (1.0 inches)83%extreme
April Weather23°C (73°F)24 mm (0.9 inches)80%extreme
May Weather25°C (76°F)56 mm (2.2 inches)82%extreme
June Weather24°C (75°F)132 mm (5.2 inches)79%extreme
July Weather23°C (74°F)122 mm (4.8 inches)72%extreme
August Weather24°C (75°F)103 mm (4.1 inches)74%extreme
September Weather22°C (73°F)178 mm (7.0 inches)84%extreme
October Weather20°C (69°F)154 mm (6.1 inches)92%extreme
November Weather17°C (64°F)41 mm (1.6 inches)91%very high
December Weather15°C (60°F)15 mm (0.6 inches)91%high

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