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December Weather in Valle Alto, Mexico

Last updated: August 27, 2025

In December, the average temperature in Valle Alto, Mexico hovers around 24°C (75°F). Expect a minimum of 13°C (56°F) and a maximum rise to 35°C (96°F). The region experiences about 14 mm (0.5 in) of precipitation over just 2 days, with humidity levels reaching a notable 91%.

December Temperature in Valle Alto

In December in Valle Alto, the average temperature is 24°C (75°F), with maximums reaching 35°C (96°F) and minimums dipping as low as 13°C (56°F). This makes it a great time to visit for those who enjoy warm weather, while also being prepared for cooler evenings.

December Weather in Valle Alto: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Valle Alto, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Valle Alto, December typically has an average temperature of 24°C (75°F), with highs reaching up to 35°C (96°F) and lows dropping to around 13°C (56°F).
JanFebMarAprMayJunJulAugSepOctNovDec737578838684848483827775
Data source: Temperature data for Valle Alto 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 Valle Alto

In Valle Alto in December, the precipitation amount reaches 14 mm (0.5 in) over a span of 2 days.

December Precipitation Trends in Valle Alto

The chart displays monthly precipitation patterns in Valle Alto, 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 Valle Alto, December typically receives around 14 mm (0.5 inches) of precipitation spread over approximately 2 days.
JanFebMarAprMayJunJulAugSepOctNovDec26262017471781951802321114614
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Valle Alto

In Valle Alto in December humidity is 91%. With an average temperature of 24°C (75°F), this humidity feels like a thick blanket wrapping around you, making traveling quite uncomfortable as you’ll likely feel drenched in sweat and sluggish after just a short walk.

December Average Humidity in Valle Alto

This chart illustrates the average monthly humidity levels in Valle Alto, 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 Valle Alto is approximately 91%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%86%84%81%82%81%81%82%86%90%91%91%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Valle Alto

In Valle Alto 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 Valle Alto.

Maximum UV Index Levels in Valle Alto for December

The chart shows the monthly maximum UV Index (UVI) for Valle Alto 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 Valle Alto typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec811121313131312131197
Data source: Valle Alto 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 Valle Alto Compares to Other Months

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

This table compares monthly weather conditions in Valle Alto, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather23°C (74°F)26 mm (1.0 inches)88%very high
February Weather24°C (76°F)26 mm (1.0 inches)86%extreme
March Weather26°C (79°F)20 mm (0.8 inches)84%extreme
April Weather28°C (83°F)17 mm (0.7 inches)81%extreme
May Weather30°C (86°F)47 mm (1.9 inches)82%extreme
June Weather29°C (84°F)178 mm (7.0 inches)81%extreme
July Weather29°C (84°F)195 mm (7.7 inches)81%extreme
August Weather29°C (84°F)180 mm (7.1 inches)82%extreme
September Weather28°C (83°F)232 mm (9.1 inches)86%extreme
October Weather28°C (82°F)111 mm (4.4 inches)90%extreme
November Weather25°C (78°F)46 mm (1.8 inches)91%very high
December Weather24°C (75°F)14 mm (0.5 inches)91%high

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