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December Weather in Alta Vista, Mexico

Last updated: August 27, 2025

In December, the average temperature in Alta Vista, Mexico is a mild 13°C (55°F). However, be prepared for a range that can dip to a chilly -3°C (27°F) or rise to a warm 30°C (85°F). On average, you'll encounter 14 mm (0.6 in) of precipitation over just 1 day, accompanied by a high humidity level of 87%.

December Temperature in Alta Vista

In December in Alta Vista, the average temperature is 13°C (55°F). Maximums can reach 30°C (85°F) and minimums can be as low as -3°C (27°F). When traveling during this time, it's advisable to pack layers to accommodate the wide range of temperatures.

December Weather in Alta Vista: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Alta Vista, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Alta Vista, December typically has an average temperature of 13°C (55°F), with highs reaching up to 30°C (85°F) and lows dropping to around -3°C (27°F).
JanFebMarAprMayJunJulAugSepOctNovDec556169768287828377736455
Data source: Temperature data for Alta Vista 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 Alta Vista

In Alta Vista in December, the precipitation amount is 14 mm (0.6 in) over the course of 1 day.

December Precipitation Trends in Alta Vista

The chart displays monthly precipitation patterns in Alta Vista, 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 Alta Vista, December typically receives around 14 mm (0.6 inches) of precipitation spread over approximately 1 days.
JanFebMarAprMayJunJulAugSepOctNovDec5432414505073161114
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Alta Vista

In Alta Vista in December, humidity is 87%. With an average temperature of 13°C (55°F), this humidity feels like a heavy blanket wrapping around you, making travel sluggish and slightly uncomfortable, as each step seems to cling to the damp air.

December Average Humidity in Alta Vista

This chart illustrates the average monthly humidity levels in Alta Vista, 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 Alta Vista is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec75%65%58%48%48%54%72%77%86%82%85%87%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Alta Vista

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

Maximum UV Index Levels in Alta Vista for December

The chart shows the monthly maximum UV Index (UVI) for Alta Vista 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 Alta Vista typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec69111314131313121086
Data source: Alta Vista 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 Alta Vista Compares to Other Months

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

This table compares monthly weather conditions in Alta Vista, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather13°C (55°F)5 mm (0.2 inches)75%high
February Weather16°C (61°F)4 mm (0.2 inches)65%very high
March Weather20°C (69°F)3 mm (0.1 inches)58%extreme
April Weather24°C (76°F)2 mm (0.1 inches)48%extreme
May Weather28°C (83°F)4 mm (0.2 inches)48%extreme
June Weather30°C (87°F)14 mm (0.5 inches)54%extreme
July Weather28°C (83°F)50 mm (2.0 inches)72%extreme
August Weather28°C (83°F)50 mm (1.9 inches)77%extreme
September Weather25°C (78°F)73 mm (2.9 inches)86%extreme
October Weather23°C (73°F)15 mm (0.6 inches)82%very high
November Weather18°C (64°F)11 mm (0.4 inches)85%very high
December Weather13°C (55°F)14 mm (0.6 inches)87%high

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