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December Weather in Santo Tomas de Arriba, Mexico

Last updated: August 27, 2025

In December, the average temperature in Santo Tomas de Arriba, Mexico hovers around 18°C (64°F), offering a mild climate. Temperatures can vary, dipping to a minimum of 3°C (38°F) and peaking at a warm 31°C (89°F). Despite this range, precipitation is light this month, with only 4 mm (0.2 in) falling across 0 days. With an average humidity level of 88%, it’s the perfect time to enjoy the beauty of the season!

December Temperature in Santo Tomas de Arriba

In December in Santo Tomas de Arriba, the average temperature is 18°C (64°F). The maximum can reach 31°C (89°F) and the minimum can be as low as 3°C (38°F). This moderate climate makes Santo Tomas de Arriba a great destination for travelers seeking pleasant weather.

December Weather in Santo Tomas de Arriba: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Santo Tomas de Arriba, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Santo Tomas de Arriba, December typically has an average temperature of 18°C (64°F), with highs reaching up to 31°C (89°F) and lows dropping to around 3°C (38°F).
JanFebMarAprMayJunJulAugSepOctNovDec646769727370706969686564
Data source: Temperature data for Santo Tomas de Arriba 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 Santo Tomas de Arriba

In Santo Tomas de Arriba in December, the precipitation amount is 4 mm (0.2 in) over the course of 0 days.

December Precipitation Trends in Santo Tomas de Arriba

The chart displays monthly precipitation patterns in Santo Tomas de Arriba, 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 Santo Tomas de Arriba, December typically receives around 4 mm (0.2 inches) of precipitation spread over approximately 0 days.
JanFebMarAprMayJunJulAugSepOctNovDec3341961226106176207140154
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Santo Tomas de Arriba

In Santo Tomas de Arriba in December, humidity is 88%. With an average temperature of 18°C (64°F), this humidity feels like you’re walking through a warm, enveloping mist, making every step slightly weighted but also refreshing, ideal for leisurely exploration but challenging for strenuous activities.

December Average Humidity in Santo Tomas de Arriba

This chart illustrates the average monthly humidity levels in Santo Tomas de Arriba, 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 Santo Tomas de Arriba is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%80%73%67%72%73%76%80%84%89%88%88%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Santo Tomas de Arriba

In Santo Tomas de Arriba in December, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Santo Tomas de Arriba.

Maximum UV Index Levels in Santo Tomas de Arriba for December

The chart shows the monthly maximum UV Index (UVI) for Santo Tomas de Arriba 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 Santo Tomas de Arriba typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec10131415151415141413119
Data source: Santo Tomas de Arriba 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 Santo Tomas de Arriba Compares to Other Months

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

This table compares monthly weather conditions in Santo Tomas de Arriba, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather18°C (64°F)3 mm (0.1 inches)84%very high
February Weather19°C (67°F)3 mm (0.1 inches)80%extreme
March Weather21°C (69°F)4 mm (0.2 inches)73%extreme
April Weather22°C (73°F)19 mm (0.8 inches)67%extreme
May Weather23°C (74°F)61 mm (2.4 inches)72%extreme
June Weather21°C (70°F)225 mm (8.9 inches)73%extreme
July Weather21°C (70°F)106 mm (4.2 inches)76%extreme
August Weather21°C (69°F)176 mm (6.9 inches)80%extreme
September Weather21°C (69°F)207 mm (8.2 inches)84%extreme
October Weather20°C (68°F)140 mm (5.5 inches)89%extreme
November Weather18°C (66°F)15 mm (0.6 inches)88%extreme
December Weather18°C (64°F)4 mm (0.2 inches)88%very high

Compare Santo Tomas de Arriba's Climate with Cities Worldwide