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December Weather in Tonalaco, Mexico

Last updated: August 27, 2025

In December, the average temperature in Tonalaco, Mexico is a mild 12°C (53°F), with a minimum dropping to -3°C (28°F) and a pleasant maximum of 23°C (73°F). Expect a modest precipitation amount of 15 mm (0.6 in) spread over 4 days, allowing for some refreshing rain. The air can feel quite humid with an average humidity of 91%, ensuring that the atmosphere remains moist and vibrant.

December Temperature in Tonalaco

In December in Tonalaco, the average temperature is 12°C (53°F). The maximum can reach 23°C (73°F), and the minimum can be as low as -3°C (28°F). Travelers should be prepared for a wide range of temperatures, so packing layers is essential for enjoying your visit.

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

The chart illustrates December temperature patterns in Tonalaco, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Tonalaco, December typically has an average temperature of 12°C (53°F), with highs reaching up to 23°C (73°F) and lows dropping to around -3°C (28°F).
JanFebMarAprMayJunJulAugSepOctNovDec525658616261606060585553
Data source: Temperature data for Tonalaco 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 Tonalaco

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

December Precipitation Trends in Tonalaco

The chart displays monthly precipitation patterns in Tonalaco, 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 Tonalaco, December typically receives around 15 mm (0.6 inches) of precipitation spread over approximately 4 days.
JanFebMarAprMayJunJulAugSepOctNovDec301841841161901041491951394915
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Tonalaco

In Tonalaco in December humidity is 91%. With an average temperature of 12°C (53°F), this humidity feels like a heavy cloak enveloping you, making every step feel laborious and the air thick and damp, which can dampen the excitement of traveling.

December Average Humidity in Tonalaco

This chart illustrates the average monthly humidity levels in Tonalaco, 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 Tonalaco 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 Tonalaco

In Tonalaco in December, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Tonalaco.

Maximum UV Index Levels in Tonalaco for December

The chart shows the monthly maximum UV Index (UVI) for Tonalaco 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 Tonalaco typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec9121314151415141412108
Data source: Tonalaco 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 Tonalaco Compares to Other Months

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

This table compares monthly weather conditions in Tonalaco, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather11°C (52°F)30 mm (1.2 inches)88%very high
February Weather13°C (56°F)18 mm (0.7 inches)86%extreme
March Weather14°C (58°F)41 mm (1.6 inches)84%extreme
April Weather16°C (61°F)84 mm (3.3 inches)81%extreme
May Weather17°C (62°F)115 mm (4.5 inches)82%extreme
June Weather16°C (61°F)190 mm (7.5 inches)81%extreme
July Weather15°C (60°F)104 mm (4.1 inches)81%extreme
August Weather16°C (60°F)149 mm (5.9 inches)82%extreme
September Weather16°C (60°F)195 mm (7.7 inches)86%extreme
October Weather14°C (58°F)139 mm (5.5 inches)90%extreme
November Weather13°C (55°F)49 mm (1.9 inches)91%very high
December Weather12°C (53°F)15 mm (0.6 inches)91%very high

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