December Weather in Atotonilco, Mexico

Last updated: April 22, 2025

December in Atotonilco, Mexico offers a delightful winter escape characterized by mild temperatures and minimal rainfall. With maximum temperatures reaching 29°C (84°F) and an average of 18°C (65°F), the days are pleasantly warm, while evenings can cool down to a refreshing 6°C (43°F). This month boasts an impressively low precipitation amount of just 3 mm (0.1 in), with no rainy days to disrupt outdoor plans. The air is rich in moisture, with humidity levels around 88%, creating a uniquely refreshing atmosphere. Enjoy clear skies and comfortable weather perfect for exploration and relaxation!

December Temperature in Atotonilco

In Atotonilco, Mexico, December ushers in a refreshing chill, with temperatures dipping to a minimum of 6°C (43°F) during the night. The days remain pleasantly mild, offering an average temperature of around 18°C (65°F), while daytime highs can reach up to 29°C (84°F). This month marks a transition from the warmer months, as December closely mirrors the coolness seen in January. Notably, while winter months may bring slight drops in temperature, the region maintains a comfortable range, encouraging outdoor activities and exploration. Overall, December in Atotonilco offers a delightful blend of crisp air and sunny days, perfect for enjoying the beauty of this picturesque locale.

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

The chart illustrates December temperature patterns in Atotonilco, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec656872757571707069696765
Data source: Temperature data for Atotonilco 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 Atotonilco

In December, Atotonilco, Mexico experiences a significant reduction in precipitation, accumulating just 3 mm (0.1 in) over the month, and notably, there are no recorded precipitation days. This sharp decline marks a stark contrast to the preceding months, especially the heavy downpours seen during the rainy season from June to September, when rainfall reached highs of 411 mm (16.2 in) on average. As the year draws to a close, the dry conditions are indicative of the region's seasonal shift, transitioning into a drier period. This pattern highlights December as a month of reprieve from the wet conditions that dominate the local climate from late spring to early autumn.

December Precipitation Trends in Atotonilco

The chart displays monthly precipitation patterns in Atotonilco, 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.
JanFebMarAprMayJunJulAugSepOctNovDec461329130376276375411173353
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Atotonilco

In Atotonilco, Mexico, December sees a notable humidity level of 88%, which reflects a trend of increasing moisture as the year draws to a close. Starting from the lower humidity of 68% in July, there’s a steady climb through the latter months, peaking at 91% in October. This gradual rise leads to an elevated December, suggesting a transition from the dry summer months to a more humid winter. The increase in humidity from 78% in February to December's nearly 89% not only highlights the region's seasonal fluctuations but also hints at the lush greenery that characterizes its landscape during this time. Thus, while December may be cool, it is undeniably rich with the lingering warmth of humidity.

December Average Humidity in Atotonilco

This chart illustrates the average monthly humidity levels in Atotonilco, 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.
JanFebMarAprMayJunJulAugSepOctNovDec84%78%75%71%77%76%68%70%82%91%89%88%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Atotonilco

In Atotonilco, Mexico, December marks a slight decrease in the UV Index, dropping to 8, which falls into the very high exposure category. This is a contrast to the more intense months leading up to it, where the UV Index frequently peaked at 14 from March through October, indicating extreme sun exposure with a burn time as quick as 10 minutes. As winter approaches, the burn time lengthens to 15 minutes, providing a bit of respite. However, it's crucial to remain vigilant, as UV levels still pose a significant risk. To stay informed and safe under the sun, check out detailed insights at Atotonilco UV Index.

Maximum UV Index Levels in Atotonilco for December

The chart shows the monthly maximum UV Index (UVI) for Atotonilco 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.
JanFebMarAprMayJunJulAugSepOctNovDec1012141414141414141198
Data source: Atotonilco 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 Atotonilco

Nestled in the heart of Mexico, Atotonilco experiences a delightful trend of sunshine throughout the year, with December boasting an impressive 298 hours of radiant daylight. As the final month of the year, December sees a slight dip from the sunniest peaks of May and June, which each bask in over 330 hours. However, this month still shines brighter than several others, such as January and November, providing ample opportunity to enjoy the mild weather and vibrant landscapes. With a steady flow of sunshine, December in Atotonilco invites both locals and travelers alike to relish in the warmth and beauty before the cold winter months set in.

Monthly Sunshine Duration in Atotonilco: December Highlighted

The December sunshine duration represents the total number of hours Atotonilco 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.
JanFebMarAprMayJunJulAugSepOctNovDec243h278h320h321h332h300h326h310h288h300h291h298h
Data source: Atotonilco December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Atotonilco During December

December in Atotonilco, Mexico, brings a promising 86% chance of sunny weather, making it one of the sunniest months of the year. This trend of increasing sun is highlighted by November's 66% and peaks dramatically in December, creating a delightful transition towards the dry season. Following the sweltering summer months where sunshine dips to a mere 9% in June and gradually rises again, December stands out as a favorable time for those seeking pleasant weather. With this likelihood of clear skies, visitors can expect to bask in the warmth of the sun while enjoying the charming beauty of Atotonilco during the holiday season.

Percentage of Sunny Days in December in Atotonilco

The chart illustrates the percentage of sunny days in Atotonilco 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 Atotonilco experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec59%90%79%72%44%9%24%27%17%35%66%86%
Data source: Atotonilco December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Atotonilco in December

In Atotonilco, Mexico, the daylight duration exhibits a pleasing rhythm as the year progresses. Starting from 11 hours in both January and February, the days begin to stretch slightly during the spring months of March and April, reaching 12 hours. This trend continues into May and June, where daylight peaks at a generous 13 hours during the summer, providing ample time for outdoor adventures. However, as summer gives way to autumn, daylight gradually recedes, dropping back to 12 hours in August and September, before settling into 11 hours once again by October and maintaining this duration through November and into December. This gentle ebb and flow of daylight not only marks the changing seasons but also sets a serene backdrop for life in this vibrant town.

Average Daylight Hours in Atotonilco for December

The chart illustrates the variation in daylight duration in Atotonilco throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec11h 8m11h 31m12h 2m12h 34m13h13h 13m13h 6m12h 42m12h 12m11h 41m11h 14m11h 1m
Data source: Atotonilco daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Atotonilco

As December settles in Atotonilco, Mexico, the winds reveal a gentle consistency, averaging 1.8 m/s (4 mph)—similar to the breezy ambiance felt in the preceding months. Throughout the year, wind speeds exhibit a subtle pattern, peaking slightly in April at 2.1 m/s (5 mph) before dropping to a low of 1.3 m/s (3 mph) in September. This month-to-month fluctuation suggests a stable yet ever-so-slightly calming trend as autumn fades into winter. December’s breezes, therefore, continue the year's narrative of modest winds, allowing the charm of Atotonilco's landscapes to shine through, unencumbered by harsh gusts.

Average December Wind Speed in Atotonilco

The chart displays monthly wind speed patterns in Atotonilco, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1.82.01.92.11.71.41.51.41.31.51.71.8 m/s
Data source: Atotonilco December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Atotonilco Compares to Other Months

The weather in Atotonilco 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 Atotonilco and find detailed weather information for every month.

In December, temperatures in Atotonilco typically range from a minimum of 6°C (43°F) to a maximum of 29°C (84°F), with an average of 18°C (65°F). The month is relatively dry, recording only 3 mm (0.1 in) of precipitation over 0 days, and humidity levels are high at 88%. In contrast, January maintains a similar temperature range, with the minimum at 6°C (42°F) and a maximum of 29°C (85°F), again averaging 18°C (65°F). However, it sees slightly more precipitation at 4 mm (0.2 in) over 1 day, and humidity drops slightly to 84%. Overall, both months offer warm weather, but January experiences a bit more moisture. For more specific details, you can check out Atotonilco weather in January.

In December, the weather in Atotonilco is generally mild, with temperatures ranging from a minimum of 6°C (43°F) to a maximum of 29°C (84°F) and an average of 18°C (65°F). The month experiences very low precipitation, with only 3 mm (0.1 in) recorded over zero rainy days, and humidity levels are notably high at 88%. In contrast, February brings slightly warmer temperatures, with a minimum of 9°C (49°F), an average of 20°C (69°F), and a maximum of 31°C (88°F). Precipitation is also slightly higher at 6 mm (0.2 in) over just one rainy day, and the humidity decreases to a comfortable 78%. For more detailed insights on February's weather, you can visit Atotonilco weather in February.

December and March exhibit distinct weather patterns. In December, temperatures range from a minimum of 6°C (43°F) to a maximum of 29°C (84°F), with an average of 18°C (65°F) and very little precipitation, totaling just 3 mm (0.1 in). The humidity level is quite high at 88%, creating a comfortable yet damp feel. In contrast, March enjoys warmer conditions, with temperatures ranging from 11°C (52°F) to a sweltering 34°C (93°F) and an average of 22°C (73°F). Precipitation increases to 13 mm (0.5 in) across three days, and humidity decreases to 75%, making March feel drier and warmer overall. For more specific details on March weather, you can visit Atotonilco weather in March.

When comparing the weather in December and April, we see a marked difference in temperatures and precipitation. December boasts a milder temperature range, with average highs around 29°C (84°F) and notable humidity at 88%, while experiencing virtually no precipitation. In contrast, April warms up significantly, with average highs reaching 34°C (93°F) and minimum temperatures starting at a comfortable 12°C (54°F). However, April is also wetter, with approximately 29 mm (1.2 in) of rain spread over 7 days, and a lower humidity level of 70%. For more detailed insights, you can check Atotonilco weather in April.

In December, the weather is mild and pleasant, with average temperatures ranging from a minimum of 6°C (43°F) to a maximum of 29°C (84°F). The month is characterized by low precipitation, totaling just 3 mm (0.1 in), and high humidity at 88%, creating a comfortable atmosphere. In contrast, May experiences significantly warmer temperatures, with a minimum of 14°C (58°F) and a maximum of 35°C (95°F), making it quite hot on average at 24°C (75°F). However, May is notably wetter, with a substantial 130 mm (5.1 in) of rainfall over 18 days, and the humidity levels drop slightly to 77%. For a more detailed look at the weather specifics, you can visit Atotonilco weather in May.

The weather in December is generally milder, with temperatures ranging from a minimum of 6°C (43°F) to a maximum of 29°C (84°F), and an average temperature of 18°C (65°F). December is notably dry, featuring only 3 mm (0.1 in) of precipitation across zero rainy days, making for a relatively humid atmosphere at 88%.

In contrast, June experiences significantly warmer temperatures, with a minimum of 15°C (60°F), an average of 22°C (71°F), and a maximum of 32°C (90°F). However, June is characterized by frequent rainfall, receiving an impressive 376 mm (14.8 in) of precipitation over 25 days, resulting in lower humidity levels at 76%.

For a detailed overview of June weather, you can visit Atotonilco weather in June.

December and July present contrasting weather patterns. In December, temperatures range from a mild 6°C (43°F) to a warm 29°C (84°F) with an average of 18°C (65°F). The month is characterized by very low precipitation, receiving only 3 mm and experiencing no rainy days, along with a high humidity level of 88%. In sharp contrast, July sees higher temperatures, with minimums of 12°C (55°F), averages of 21°C (71°F), and maximums reaching up to 31°C (87°F). However, it is significantly wetter, with 276 mm (10.9 in) of rainfall over 25 days, accompanied by a lower humidity level of 68%. For a more detailed look at July weather, check out Atotonilco weather in July.

December weather features a comfortable range of temperatures, with a minimum of 6°C (43°F) and a maximum of 29°C (84°F), resulting in low precipitation of just 3 mm (0.1 in) over the month, and a high humidity of 88%. In contrast, August experiences warmer temperatures with a minimum of 13°C (56°F) and a maximum of 30°C (86°F), but it is significantly wetter, receiving 375 mm (14.8 in) of rainfall across 28 days, and lower humidity at 70%. For more detailed insights, check Atotonilco weather in August.

In December, the weather is generally warmer with average temperatures ranging from a minimum of 6°C (43°F) to a maximum of 29°C (84°F), experiencing very little rainfall at just 3 mm and maintaining a high humidity of 88%. In contrast, September is decidedly cooler, with temperatures ranging from a minimum of 13°C (56°F) to a maximum of 29°C (85°F), but it is also much wetter, recording a significant precipitation of 411 mm over 28 days. While both months can reach similar maximum temperatures, December offers a drier and slightly more humid climate compared to the rainy season of September. For more detailed insights, check the Atotonilco weather in September.

When comparing the weather in December and October, one can observe notable differences in temperature and precipitation patterns. December features milder nights with a minimum of 6°C (43°F) and pleasantly warm afternoons averaging 18°C (65°F), while October has slightly cooler nights with a minimum of 10°C (51°F) and an average temperature of 20°C (69°F). Additionally, October is characterized by significantly higher precipitation, receiving around 173 mm (6.8 in) over approximately 20 days, whereas December remains dry with minimal precipitation of only 3 mm and no rainy days. Humidity levels are relatively similar in both months, with December at 88% and October slightly higher at 91%. For more detailed insights on October weather, you can refer to Atotonilco weather in October.

In comparing the weather between November and December, December offers slightly warmer temperatures, with a minimum of 6°C (43°F) and an average of 18°C (65°F), while November has a higher minimum of 9°C (48°F) and an average of 19°C (67°F). Both months peak at a similar maximum of around 29°C (84°F) to 29°C (85°F), but December boasts far less precipitation, recording only 3 mm (0.1 in) over 0 days compared to November's 35 mm (1.4 in) over 5 days. Humidity levels remain high in both months, with December at 88% and November at 89%. For a more detailed look at November weather patterns, you can check Atotonilco weather in November.

Compare Atotonilco's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Atotonilco

In December, Atotonilco experiences a delightful shift in weather, characterized by cooler temperatures that offer a refreshing break from the warmer months. With maximums reaching a comfortable 29°C and average temperatures hovering around 18°C, this month provides the perfect climate for outdoor activities. The lack of precipitation—boasting zero rainy days—means you can enjoy sunny skies and vibrant landscapes, making it an ideal time for exploration. Coupled with high humidity levels of 88%, the crispness of the air is invigorating, offering a charming retreat from the heat. For a more in-depth look at Atotonilco's unique climate, check out Atotonilco Climate.