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December Weather in San Sebastian de las Grutas, Mexico

Last updated: August 27, 2025

In San Sebastian de las Grutas, Mexico, the average temperature in December hovers around 15°C (59°F), offering a mild climate perfect for exploration. While temperatures can dip as low as 2°C (36°F), they can also peak at a cozy 27°C (81°F). Expect light rain with an average precipitation of 11 mm (0.4 in) over the course of just one day, and be prepared for a touch of humidity, as the average sits at a humid 88%.

December Temperature in San Sebastian de las Grutas

In December in San Sebastian de las Grutas, the average temperature is 15°C (59°F). Maximum temperatures can reach 27°C (81°F), while the minimum can be as low as 2°C (36°F). This climate makes San Sebastian de las Grutas a great destination for travelers seeking mild and varied weather.

December Weather in San Sebastian de las Grutas: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in San Sebastian de las Grutas, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Sebastian de las Grutas, December typically has an average temperature of 15°C (59°F), with highs reaching up to 27°C (81°F) and lows dropping to around 2°C (36°F).
JanFebMarAprMayJunJulAugSepOctNovDec596163646563636363636159
Data source: Temperature data for San Sebastian de las Grutas 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 San Sebastian de las Grutas

In San Sebastian de las Grutas in December, the precipitation amount is 11 mm (0.4 in) over the course of one day.

December Precipitation Trends in San Sebastian de las Grutas

The chart displays monthly precipitation patterns in San Sebastian de las Grutas, 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 San Sebastian de las Grutas, December typically receives around 11 mm (0.4 inches) of precipitation spread over approximately 1 days.
JanFebMarAprMayJunJulAugSepOctNovDec6429741543232203003832192611
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in San Sebastian de las Grutas

In San Sebastian de las Grutas in December humidity is 88%. With an average temperature of 15°C (59°F), this humidity feels like a warm blanket enveloping you, making outdoor adventures feel stifling and sticky, which can drain your energy while traveling.

December Average Humidity in San Sebastian de las Grutas

This chart illustrates the average monthly humidity levels in San Sebastian de las Grutas, 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 San Sebastian de las Grutas 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 San Sebastian de las Grutas

In San Sebastian de las Grutas 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 San Sebastian de las Grutas.

Maximum UV Index Levels in San Sebastian de las Grutas for December

The chart shows the monthly maximum UV Index (UVI) for San Sebastian de las Grutas 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 San Sebastian de las Grutas typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec10131515151515141413119
Data source: San Sebastian de las Grutas 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 San Sebastian de las Grutas Compares to Other Months

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

This table compares monthly weather conditions in San Sebastian de las Grutas, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather15°C (59°F)6 mm (0.2 inches)84%very high
February Weather16°C (61°F)3 mm (0.1 inches)80%extreme
March Weather17°C (64°F)29 mm (1.1 inches)73%extreme
April Weather18°C (65°F)74 mm (2.9 inches)67%extreme
May Weather18°C (65°F)154 mm (6.1 inches)72%extreme
June Weather17°C (64°F)323 mm (12.7 inches)73%extreme
July Weather17°C (64°F)220 mm (8.7 inches)76%extreme
August Weather17°C (63°F)300 mm (11.8 inches)80%extreme
September Weather17°C (63°F)383 mm (15.1 inches)84%extreme
October Weather17°C (63°F)219 mm (8.6 inches)89%extreme
November Weather16°C (61°F)26 mm (1.0 inches)88%extreme
December Weather15°C (59°F)11 mm (0.4 inches)88%very high

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