December Weather in Guanajuato, Mexico

Last updated: April 22, 2025

In December, Guanajuato, Mexico experiences a delightful climate characterized by a maximum temperature of 33°C (91°F) and an average temperature of 24°C (76°F), making it an ideal escape from colder regions. With a minimum temperature of 16°C (60°F), evenings are pleasantly cool. This month sees minimal rainfall, with just 4 mm (0.2 in) over approximately 2 days, allowing for ample sunshine and outdoor activities. The humidity level hovers around 75%, adding a touch of moisture to the air without overwhelming comfort. Overall, December offers a perfect blend of warmth and mildness, inviting visitors to explore the vibrant culture and picturesque landscapes of this historic city.

December Temperature in Guanajuato

In Guanajuato, Mexico, December offers a delightful climate that bridges the cooler months with the warmer seasons ahead. As winter settles in, temperatures exhibit a gentle dip, with nightly lows around 16°C (60°F), making cozy evenings quite inviting. Daytime brings a pleasant average of 24°C (76°F), perfect for exploring the city's rich culture and vibrant scenery without the sweltering heat often felt in the summer months. With maximum temperatures resting at 33°C (91°F), December strikes a lovely balance, welcoming visitors to enjoy the festive spirit in this charming locale while embracing a milder yet comfortable weather trend. Overall, the gradual cooling from November to December signals the onset of a season that's both comfortable and enchanting for travelers.

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

The chart illustrates December temperature patterns in Guanajuato, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec757678797977787777777775
Data source: Temperature data for Guanajuato 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 Guanajuato

In Guanajuato, Mexico, December marks a transition into the drier months, with a modest precipitation amount of just 4 mm (0.2 in) on only 2 days of rain. This starkly contrasts with the preceding months of heavy rainfall, particularly August and September, which often see over 350 mm and nearly daily precipitation. As the rainy season concludes in late fall, the sharp decline in both precipitation and rainy days signals the onset of a drier climate in winter. With December's sparse showers, locals can expect the cool, crisp air to prevail, providing a serene end to the year after the region's lush, rain-soaked summer.

December Precipitation Trends in Guanajuato

The chart displays monthly precipitation patterns in Guanajuato, 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.
JanFebMarAprMayJunJulAugSepOctNovDec331139176327277355391323384
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Guanajuato

As December arrives in Guanajuato, Mexico, the humidity settles at a moderate 75%, marking a transition as the year draws to a close. Throughout the months, a notable trend emerges: humidity levels tend to rise during the warmer summer months, peaking at 82% in August, before gradually receding as the cooler season approaches. This December figure reflects a slight decrease from the humidity levels observed in the previous months, continuing the trend of descending moisture that typically characterizes the winter months. While humidity remains relatively high compared to the drier spring months, with 64% in March, December's levels create a comfortable balance that complements the festive atmosphere of the holiday season in this charming city.

December Average Humidity in Guanajuato

This chart illustrates the average monthly humidity levels in Guanajuato, with December's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how December's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec70%68%64%67%74%78%82%82%80%81%80%75%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Guanajuato

In December, Guanajuato, Mexico, experiences a notable shift in UV exposure as the UV Index dips to 9, landing it in the very high exposure category. This marks a slight reduction from the intense extremes seen in the peak months of April through July, when the index consistently soared to 14. With a burn time of just 15 minutes, December still demands caution, particularly for those enjoying outdoor activities. The trend throughout the year highlights a persistent need for sun protection, especially during the months with extreme UV levels. For more detailed information on the UV Index in Guanajuato, visit Guanajuato UV Index.

Maximum UV Index Levels in Guanajuato for December

The chart shows the monthly maximum UV Index (UVI) for Guanajuato 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.
JanFebMarAprMayJunJulAugSepOctNovDec10121314141414131312109
Data source: Guanajuato 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.

December Sunshine in Guanajuato

In Guanajuato, Mexico, December bathes the city in a delightful 314 hours of sunshine, contributing to a warm and inviting atmosphere that perfectly encapsulates the festive spirit of the holiday season. As the year winds down, sunlight levels remain high, comfortably nestled between the abundant rays of April and May and only slightly below the sun-drenched days of November. This consistent sunlight in December is part of a larger trend; from the early bright beginnings in January to a climax in March and July, Guanajuato enjoys a remarkably sunny climate year-round. Visitors can revel in the stunning vistas and vibrant culture, enveloped in the soft glow of the winter sun. This blend of radiant days and rich traditions makes December in Guanajuato a truly enchanting experience.

Monthly Sunshine Duration in Guanajuato: December Highlighted

The December sunshine duration represents the total number of hours Guanajuato experiences direct sunlight during the month of December, excluding cloudy or obstructed periods. This chart compares the sunshine duration of December with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec249h282h322h315h317h275h322h302h288h289h309h314h
Data source: Guanajuato December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Guanajuato During December

In Guanajuato, Mexico, December stands out as a month of promising sunny weather, boasting a substantial 85% chance of sun. This high likelihood is part of a trend that sees the year gradually transitioning from the drier months of summer, where cloud cover is prevalent, to the more favorable conditions at the year's end. After experiencing lower chances of sunshine during the sweltering summer months—peaking at a mere 12% in June—the outlook improves significantly as we approach winter. Following November's solid 70% chance of sun, December's delightful forecast heralds the onset of crisp, sunny days perfect for exploring the vibrant culture and stunning landscapes of Guanajuato. This seasonal pattern emphasizes a shift towards brighter skies, making December an ideal time to savor the city’s charm beneath a sunlit sky.

Percentage of Sunny Days in December in Guanajuato

The chart illustrates the percentage of sunny days in Guanajuato throughout the year, with December highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Guanajuato experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec68%88%79%57%33%12%17%13%15%35%70%85%
Data source: Guanajuato December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Guanajuato in December

In Guanajuato, Mexico, the daylight duration exhibits a steady rhythm throughout the year, with December offering 11 hours of sunlight. As the year progresses from winter to spring, there’s an evident increase in daylight: March to May sees a peak of 12 hours daily, creating longer, brighter days that perfectly complement the vibrant spring blooms. The longest daylight occurs in June with 13 hours, basking the city in radiant light. However, as the seasons shift back to winter, daylight diminishes, returning to 11 hours in both October and December. This cyclical pattern of daylight not only enhances the natural beauty of Guanajuato but also influences the energetic atmosphere throughout the changing seasons.

Average Daylight Hours in Guanajuato for December

The chart illustrates the variation in daylight duration in Guanajuato throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec11h 17m11h 37m12h 2m12h 29m12h 51m13h 2m12h 56m12h 36m12h 11m11h 45m11h 22m11h 11m
Data source: Guanajuato daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Guanajuato

As the year winds down in Guanajuato, Mexico, December brings a gentle average wind speed of 1.7 m/s (4 mph), slightly lower than the brisker gusts experienced in the preceding months. This gradual decline follows November's lively winds at 2.1 m/s (5 mph), marking a transition into calmer winter days. Notably, spring and summer months tend to be characterized by even lighter breezes, peaking at a mere 1.2 m/s (3 mph) during the height of summer in June and July. As we look across the year, December’s winds encapsulate the subtle shift towards a quieter end of the year, creating a peaceful yet invigorating atmosphere that invites both locals and visitors to enjoy the enchanting beauty of this historic city.

Average December Wind Speed in Guanajuato

The chart displays monthly wind speed patterns in Guanajuato, with values for each month shown alongside December's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how December's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec2.02.11.91.71.21.21.11.11.21.22.11.7 m/s
Data source: Guanajuato December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Guanajuato Compares to Other Months

The weather in Guanajuato changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of December's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Guanajuato and find detailed weather information for every month.

December and January exhibit notably similar weather patterns, with average daytime temperatures remaining constant at around 24°C (76°F). December experiences slightly warmer nighttime temperatures, with a minimum of 16°C (60°F), compared to January's cooler 14°C (57°F). The maximum temperature in January peaks at a slightly higher 34°C (93°F), while December maxes out at 33°C (91°F). Precipitation is minimal in both months, but January is drier, recording no rainy days and just 3 mm (0.1 in) of rain, while December sees rain on 2 days with 4 mm (0.2 in). Humidity levels also decrease in January, averaging 70% compared to December's 75%. For more details, visit Guanajuato weather in January.

In December, the weather exhibits a comfortable range with minimum temperatures around 16°C (60°F) and maximums peaking at 33°C (91°F). While it averages 24°C (76°F), December sees an increase in humidity at 75% and experiences some light precipitation over two days. In contrast, February enjoys slightly warmer averages, with temperatures ranging from a minimum of 14°C (58°F) to a maximum of 34°C (93°F) and an avg of 25°C (77°F). Notably, February is drier, with just 3 mm (0.1 in) of precipitation and no rainy days, along with a decrease in humidity to 68%. For more detailed weather insights, check Guanajuato weather in February.

In December, the weather in Guanajuato is relatively warm, with temperatures ranging from a minimum of 16°C (60°F) to a maximum of 33°C (91°F), and an average temperature of 24°C (76°F). The month experiences low precipitation of just 4 mm (0.2 in) over two days, along with a higher humidity level of 75%. In contrast, March sees slightly warmer conditions, with temperatures ranging from a minimum of 18°C (64°F) to a maximum of 35°C (95°F), and an average of 26°C (78°F). However, March also registers increased rainfall at 11 mm (0.4 in) over the same two days, and a decrease in humidity to 64%. For a more detailed look at the weather in Guanajuato during March, check out Guanajuato weather in March.

In December, the weather is generally warm with temperatures ranging from a minimum of 16°C (60°F) to a maximum of 33°C (91°F) and an average of 24°C (76°F). This month experiences low precipitation of just 4 mm (0.2 in) over 2 days, alongside relatively high humidity at 75%. In contrast, April sees slightly warmer temperatures, with a minimum of 18°C (64°F), an average of 26°C (79°F), and a peak at 35°C (96°F). However, April is also characterized by more rain, accumulating 39 mm (1.5 in) across 7 days, while the humidity dips to 67%. For more detailed insights, check out Guanajuato weather in April.

In December, the weather is generally milder, with temperatures ranging from a minimum of 16°C (60°F) to a maximum of 33°C (91°F) and an average of 24°C (76°F). This month experiences very little precipitation, totaling just 4 mm (0.2 in) over 2 days, alongside relatively high humidity at 75%. In contrast, May sees warmer conditions, with temperatures ranging from a minimum of 21°C (69°F) to a maximum of 35°C (95°F) and an average of 26°C (79°F). However, this month is characterized by significantly higher precipitation, receiving 176 mm (6.9 in) over 24 days, while the humidity remains slightly lower at 74%. For more details on what to expect during this time, you can check Guanajuato weather in May.

In December, Guanajuato enjoys relatively warm weather with average temperatures ranging from a minimum of 16°C (60°F) to a maximum of 33°C (91°F). With only 4 mm (0.2 in) of precipitation over 2 days and humidity at 75%, it's typically a dry month. In contrast, June experiences more rainfall, with an average precipitation of 327 mm (12.9 in) spread across 26 days. The temperatures in June range from a minimum of 20°C (68°F) to a maximum of 33°C (92°F), and humidity increases slightly to 78%. For more detailed insights on June weather, visit Guanajuato weather in June.

In December, the weather is warm and pleasant, with temperatures ranging from a minimum of 16°C (60°F) to a maximum of 33°C (91°F) and an average temperature of 24°C (76°F). The precipitation is minimal, with only 4 mm (0.2 in) expected over just 2 days, and humidity levels at a comfortable 75%. In contrast, July sees higher humidity at 81% and significantly more rainfall, with 277 mm (10.9 in) spread across 29 days, while temperatures are slightly warmer, with a minimum of 20°C (69°F) and an average of 26°C (78°F). For more details on the weather in July, check out Guanajuato weather in July.

In December, the weather boasts a warm average temperature of 24°C (76°F), with maximums reaching up to 33°C (91°F) and a relatively low humidity of 75%. Precipitation is minimal during this month, with only 4 mm (0.2 in) falling over just 2 days. In contrast, August presents a different climate, featuring a slightly higher average temperature of 25°C (78°F) and the same maximum temperature of 33°C (91°F). However, humidity increases to 82% and rainfall is significant, with a staggering 355 mm (14.0 in) spread across 28 days, making it a much wetter month. For more details, you can check Guanajuato weather in August.

In December, the weather in Guanajuato is generally warmer, with minimum temperatures around 16°C (60°F) and average highs reaching 33°C (91°F). The month experiences significantly less precipitation, with only 4 mm (0.2 in) of rain over just 2 days, and humidity levels at 75%. In contrast, September sees a higher minimum temperature of 20°C (69°F) and an average high of 32°C (89°F), but it is marked by heavy rainfall, accumulating 391 mm (15.4 in) over 27 rainy days, along with a slightly higher humidity of 80%. For more details on September weather, check out Guanajuato weather in September.

When comparing the weather in December to October, we see some notable differences. December features milder temperatures with a minimum of 16°C (60°F) and an average of 24°C (76°F), while October tends to be warmer, with a minimum of 20°C (68°F) and an average of 25°C (77°F). Rainfall is another significant contrast; December receives only 4 mm (0.2 in) over 2 days, whereas October is quite wet, experiencing 323 mm (12.7 in) spread over 27 days. Additionally, December's humidity is slightly lower at 75%, compared to the higher humidity level of 81% seen in October. For more details on the October weather, check out Guanajuato weather in October.

In comparison to November, December typically sees slightly warmer temperatures, with a minimum of 16°C (60°F) and an average of 24°C (76°F), compared to November's minimum of 17°C (63°F) and average of 25°C (77°F). Both months reach a maximum of 33°C (91°F) and 33°C (92°F) respectively, but December enjoys significantly less precipitation, with only 4 mm (0.2 inches) over just 2 days, while November experiences 38 mm (1.5 inches) over 8 days. Humidity levels also drop slightly in December to 75%, compared to 80% in November. For more detailed climate insights, you can visit Guanajuato weather in November.

Compare Guanajuato's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Guanajuato

As December unfolds in Guanajuato, the weather begins to shift, offering a delightful respite from the hotter months. With an average temperature of 24°C (76°F), the days are comfortably warm, while cooler nights invite cozy evenings. Unlike the more humid summer months, December boasts a lower humidity level of 75%, making the atmosphere feel fresher. Rainfall is minimal, with only a couple of wet days, allowing ample opportunity to explore this beautiful city without the interruptions of rain. For those interested in understanding how Guanajuato's weather varies throughout the year, the Guanajuato Climate page offers more insights.