December Weather in San Miguel de Allende, Mexico

Last updated: April 22, 2025

In December, San Miguel de Allende boasts a pleasant climate characterized by a maximum temperature of 28°C (83°F), making it ideal for outdoor exploration. The average temperature hovers around a comfortable 14°C (58°F), while nights can dip to a chilly -2°C (29°F). Visitors will appreciate the dry conditions, with a mere 5 mm (0.2 in) of precipitation recorded over the month and zero rainy days, ensuring ample sunshine to enjoy the city’s vibrant atmosphere. With humidity levels sitting at 81%, the cool evenings are perfect for cozy gatherings after sun-soaked days.

December Temperature in San Miguel de Allende

In December, San Miguel de Allende experiences a delightful transition into winter, with temperatures showcasing a distinct chill. The month kicks off with nighttime lows dipping to -2°C (29°F), hinting at the crispness of the season, while daytime warmth reaches a comfortable 14°C (58°F) on average and peaks at a pleasant 28°C (83°F) under the sun. This pattern reflects a trend of decreasing nighttime temperatures as the year comes to a close, contrasting sharply with the milder averages seen in the preceding months. Overall, December provides a rare chance to enjoy both cool evenings and warm afternoons, making it an ideal time for cozy gatherings and outdoor exploration in this charming Mexican city.

December Weather in San Miguel de Allende: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in San Miguel de Allende, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec586266707370686967656158
Data source: Temperature data for San Miguel de Allende 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 Miguel de Allende

In San Miguel de Allende, December typically marks the tail end of the rainy season, and this is reflected in its modest precipitation levels. With an average of just 5 mm (0.2 in) of rain, December experiences a significant drop compared to the summer months, which can see rainfall exceeding 100 mm. Notably, this month has 0 precipitation days, suggesting a period of dry, cool weather that sets the stage for the vibrant festivities of the holiday season. Following a pattern from the previous months, the precipitation in December is a stark contrast to the wetter summer, illustrating a clear seasonal shift in this enchanting Mexican locale.

December Precipitation Trends in San Miguel de Allende

The chart displays monthly precipitation patterns in San Miguel de Allende, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3697381451179413150185
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in San Miguel de Allende

In December, San Miguel de Allende experiences a notable humidity level of 81%, reflecting a trend of elevated moisture as the year draws to a close. Following a gradual increase from a comfortable 58% in March and April, humidity begins to rise significantly during the warmer months, peaking in November at 84%. While December's humidity is slightly lower than November's peak, it still contributes to a noticeably damp atmosphere, typical for this time of year. This pattern of increasing humidity leading into winter creates a cozy, albeit moist, climate that invites locals and visitors alike to enjoy the charming ambiance of this historic town.

December Average Humidity in San Miguel de Allende

This chart illustrates the average monthly humidity levels in San Miguel de Allende, 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.
JanFebMarAprMayJunJulAugSepOctNovDec74%65%58%58%67%76%67%68%81%83%84%81%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in San Miguel de Allende

In December, San Miguel de Allende experiences a UV Index of 8, placing it in the very high exposure category, with a burn time of just 15 minutes. This marks a slight decline from the extreme levels observed in the peak months of March through October, where the UV Index frequently reached 14 or 15. The overall trend reveals a seasonal variability, with the UV Index generally peaking in the spring and summer months before gradually decreasing towards winter. As we wrap up the year, December still demands sun protection, albeit with a bit more leeway than the previous intense months. For detailed UV index forecasts throughout the year, visit San Miguel de Allende UV Index.

Maximum UV Index Levels in San Miguel de Allende for December

The chart shows the monthly maximum UV Index (UVI) for San Miguel de Allende 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.
JanFebMarAprMayJunJulAugSepOctNovDec911141515141414141298
Data source: San Miguel de Allende 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 San Miguel de Allende

December in San Miguel de Allende brings a delightful warmth as residents enjoy 286 hours of sunshine, making it a cozy month perfect for exploring this vibrant city. As the year draws to a close, daylight hours are slightly lower compared to the peak of spring and summer, which see over 300 hours of sun. However, December maintains a pleasant brightness that reflects the city's charm during the festive season. Interestingly, sunshine hours see a gradual decline from the summer months, but they remain more generous than in the colder months of January and November. This trend highlights the city's appeal as a year-round destination, where even in December, the sun still shines brightly, enhancing the beauty of its historic streets and festive celebrations.

Monthly Sunshine Duration in San Miguel de Allende: December Highlighted

The December sunshine duration represents the total number of hours San Miguel de Allende 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.
JanFebMarAprMayJunJulAugSepOctNovDec232h268h317h322h341h321h331h325h291h288h279h286h
Data source: San Miguel de Allende December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in San Miguel de Allende During December

When considering the likelihood of sunny weather in December in San Miguel de Allende, one finds a promising outlook with a 70% chance of sunshine. This marks a notable increase from the more overcast months of June and September, which both hover around 20% to 26% sunshine probability. December’s pleasant weather sets it apart from the summer months, particularly July, which experiences the lowest sun exposure. In fact, as the year progresses, we observe a gradual rise in sunny days, particularly leading into the winter months, where the chances peak at 87% in February. So, if you're planning a getaway to bask in December's warmth, San Miguel de Allende offers a delightful mix of sunshine and mild temperatures, making it an ideal winter escape.

Percentage of Sunny Days in December in San Miguel de Allende

The chart illustrates the percentage of sunny days in San Miguel de Allende 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 San Miguel de Allende experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec60%87%78%68%60%20%26%40%21%41%60%70%
Data source: San Miguel de Allende December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in San Miguel de Allende in December

Throughout the year in San Miguel de Allende, Mexico, daylight duration exhibits a distinct rhythm, peaking in the warmer months. As December arrives, residents and visitors alike experience the year's shortest daylight span, with only 10 hours of sunlight. This marks a gradual decline from the 13 hours enjoyed during the vibrant summer months of May through July. As autumn fades into winter, daylight dips to 11 hours in November and finally falls to 10 hours this month, hinting at the transition to longer nights. As daylight inches its way back up in January, the pattern recurs, promising the return of longer days and the warmth of spring, creating a seasonal cycle that shapes the daily lives of those in this charming town.

Average Daylight Hours in San Miguel de Allende for December

The chart illustrates the variation in daylight duration in San Miguel de Allende throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec11h11h 27m12h 2m12h 38m13h 8m13h 22m13h 14m12h 48m12h 13m11h 37m11h 7m10h 52m
Data source: San Miguel de Allende daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in San Miguel de Allende

In San Miguel de Allende, December brings a gentle breeze, with an average wind speed of 2.0 m/s (4 mph). This slight decline in wind compared to the previous months suggests a calming transition into winter, where the air feels softer and more inviting. Interestingly, December's winds mirror September's low points, marking a seasonal lull as the year winds down. Overall, the trend throughout the year shows a relatively mild wind pattern, consistently hovering between 2.1 to 2.9 m/s (4 to 6 mph), creating an idyllic atmosphere for leisurely strolls and enjoying the vibrant culture and stunning landscapes of this charming town.

Average December Wind Speed in San Miguel de Allende

The chart displays monthly wind speed patterns in San Miguel de Allende, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.32.92.62.92.52.42.12.61.92.12.32.0 m/s
Data source: San Miguel de Allende December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in San Miguel de Allende Compares to Other Months

The weather in San Miguel de Allende 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 San Miguel de Allende and find detailed weather information for every month.

December and January in San Miguel de Allende exhibit quite similar weather patterns, marked by mild temperatures and low precipitation. In December, temperatures range from a minimum of -2°C (29°F) to a maximum of 28°C (83°F), with a comfortable average of 14°C (58°F). The month sees very little rainfall, with just 5 mm (0.2 in) over zero days, and humidity levels at 81%. Conversely, January experiences slightly milder conditions, with minimum temperatures hovering around -1°C (31°F) and similar maximum and average values as December. Precipitation decreases even further to 3 mm (0.1 in) with humidity falling to 74%. For a more detailed look at January weather, you can check the link here: San Miguel de Allende weather in January.

December typically experiences milder temperatures with a minimum of -2°C (29°F) and a comfortable average of 14°C (58°F), peaking at 28°C (83°F). The month is relatively dry, with no recorded precipitation and high humidity levels at 81%. In contrast, February sees slightly warmer temperatures, ranging from a minimum of 1°C (35°F) to an average of 17°C (62°F) and a maximum of 32°C (89°F). While precipitation increases slightly to 6 mm (0.2 in) over one day, humidity drops significantly to 65%. For more detailed information on February's weather, visit San Miguel de Allende weather in February.

December and March exhibit notable differences in weather. In December, temperatures range from a chilly minimum of -2°C (29°F) to a comfortable maximum of 28°C (83°F), with an average of 14°C (58°F). The month is characterized by low precipitation, with just 5 mm (0.2 in) and no rainy days, accompanied by relatively high humidity at 81%. In contrast, March brings a milder climate with temperatures starting at a minimum of 2°C (35°F) and peaking at 34°C (93°F), resulting in a higher average of 19°C (67°F). March also sees a slight increase in precipitation to 9 mm (0.3 in) over two days, while humidity drops to 58%. For more detailed insights, check out San Miguel de Allende weather in March.

In December, the weather is generally cooler with temperatures ranging from a minimum of -2°C (29°F) to a maximum of 28°C (83°F) and an average of 14°C (58°F). The month experiences low humidity at 81% and almost no precipitation, making it a dry period. In contrast, April features much warmer temperatures, with a minimum of 6°C (44°F) and a maximum of 35°C (95°F), leading to an average of 21°C (71°F). Although April sees slightly more precipitation at 7 mm (0.3 in) over 2 days, the humidity is more comfortable at 58%. For more detailed information, check out San Miguel de Allende weather in April.

December and May present contrasting weather conditions. In December, temperatures range from a chilly minimum of -2°C (29°F) to a pleasant maximum of 28°C (83°F), with an average of 14°C (58°F). The month is characterized by minimal precipitation, with only 5 mm (0.2 in) recorded over zero days and a high humidity level of 81%. In contrast, May experiences warmer temperatures, with a minimum of 9°C (49°F) and a maximum of 36°C (97°F), averaging around 23°C (73°F). This month sees significantly more rainfall, totaling 38 mm (1.5 in) over six days, and a lower humidity level of 67%. For a more detailed look at what to expect during this vibrant month in San Miguel de Allende, visit San Miguel de Allende weather in May.

In December, the weather is mild with temperatures ranging from a chilly minimum of -2°C (29°F) to a pleasant average of 14°C (58°F) and a maximum of 28°C (83°F). The month is notably dry, with no recorded days of precipitation and an humidity level of 81%. In contrast, June sees much warmer temperatures, with a minimum of 9°C (49°F), an average of 21°C (70°F), and a peak of 35°C (96°F). However, June is significantly wetter, experiencing 145 mm (5.7 in) of rainfall over 14 days, accompanied by a slightly lower humidity of 76%. For more details, you can refer to San Miguel de Allende weather in June.

In December, San Miguel de Allende experiences milder temperatures with a minimum of -2°C (29°F) and an average of 14°C (58°F), peaking at 28°C (83°F). The month is relatively dry, with no recorded precipitation, though humidity remains high at 81%. In stark contrast, July brings warmer conditions, with temperatures ranging from a minimum of 11°C (52°F) to a maximum of 33°C (91°F) and an average of 20°C (68°F). July is significantly wetter, encountering 117 mm (4.6 in) of rainfall over 17 days, though humidity levels are lower at 67%. For a detailed look at July weather, check out San Miguel de Allende weather in July.

December and August exhibit contrasting weather patterns, showcasing the diversity of climate during these months. In December, temperatures range from a chilly minimum of -2°C (29°F) to a comfortable maximum of 28°C (83°F), with an average of 14°C (58°F) and minimal precipitation at just 5 mm (0.2 in) over 0 days, resulting in a humid environment with 81% humidity. In stark contrast, August boasts a milder minimum temperature of 12°C (53°F) and a warmer maximum of 32°C (90°F), with an average temperature of 20°C (69°F) and significant rainfall totaling 94 mm (3.7 in) over 13 days, alongside lower humidity levels at 68%. For more insights on this month's climate, you can visit San Miguel de Allende weather in August.

In December, the weather presents a significant contrast to September. While September experiences a mild average temperature of 19°C (67°F) with maximums reaching 31°C (88°F) and substantial rainfall of 131 mm (5.2 in) over 15 days, December offers cooler temperatures, averaging 14°C (58°F) and peaking at a maximum of 28°C (83°F) with virtually no precipitation. Both months share the same humidity level of 81%, but December's dry conditions and lower temperatures create a stark difference in the overall climate. For more details on September's weather, you can visit San Miguel de Allende weather in September.

When comparing the weather in December and October, significant differences emerge. December experiences cooler temperatures, with a minimum of -2°C (29°F) and a maximum of 28°C (83°F), while October is milder, with temperatures ranging from a minimum of 5°C (42°F) to a maximum of 31°C (87°F). Precipitation is notably lower in December, with only 5 mm (0.2 in) recorded over the month and no rainy days, compared to October's 50 mm (2.0 in) spread across 8 days. Humidity levels remain relatively similar in both months, with December at 81% and October slightly higher at 83%. For more detailed insights, you can check San Miguel de Allende weather in October.

In comparing the weather between December and November, December features a more stable temperature range, with a minimum of -2°C (29°F), an average of 14°C (58°F), and a maximum of 28°C (83°F). In contrast, November experiences slightly milder temperatures, with a minimum of 0°C (32°F), an average of 16°C (61°F), and a maximum of 30°C (87°F). Additionally, December records significantly less precipitation, with only 5 mm (0.2 in) and no rainy days, while November sees more moisture with 18 mm (0.7 in) over two days. Humidity levels are fairly comparable, with December at 81% and November slightly higher at 84%. For a more detailed look at November weather, you can check out San Miguel de Allende weather in November.

Compare San Miguel de Allende's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in San Miguel de Allende

December in San Miguel de Allende brings a pleasant shift in weather, distinguishing it from the warmer months. With daytime temperatures reaching a comfortable 28°C (83°F) and cooler nights averaging around 14°C (58°F), it’s an ideal time for outdoor activities and exploring the vibrant town. Unlike the rainy summer months, December enjoys clear skies and minimal precipitation, making it a perfect opportunity to experience the rich cultural festivities without the interruption of rain. This month’s 81% humidity adds to the crisp morning air, creating a refreshing atmosphere that’s both invigorating and enjoyable. For those looking to understand more about the overall climate of this charming destination, check out the detailed information at San Miguel de Allende Climate.