December Weather in Atotonilco, Mexico

Last updated: April 22, 2025

December in Atotonilco, Mexico showcases a diverse climate, with daytime temperatures averaging a comfortable 24°C (76°F), dipping to a chilly 10°C (51°F) at night, and occasionally plunging to a minimum of -7°C (20°F). Rainfall is modest, with about 12 mm (0.5 in) occurring over just 2 days, contributing to the region's lush landscape. The air remains humid at 83%, making for crisp mornings and serene evenings, perfect for experiencing the unique charm of this captivating locale.

December Temperature in Atotonilco

In December, Atotonilco, Mexico experiences a notable shift as temperatures drop, with minimums reaching -7°C (20°F) at night, giving way to average daytime highs of 24°C (76°F). This contrasts sharply with the warmer months preceding it, where January’s average sits at a mild 10°C (50°F). The consistent pattern of cool evenings and mellow afternoons creates a refreshing winter atmosphere, ideal for enjoying the scenic beauty of the region. As the month progresses, the chill of December signals the onset of winter, yet the daytime warmth still invites outdoor activities, blending the crisp air with the pleasant sun.

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.
JanFebMarAprMayJunJulAugSepOctNovDec505359626666626361595550
Data source: Temperature data for Atotonilco generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Atotonilco

In December, Atotonilco experiences a notable decline in precipitation, receiving just 12 mm (0.5 in) over two days. This stance marks a sharp contrast to the heavy rains of the previous months, particularly July and September, which see substantial downpours of 292 mm (11.5 in) and 237 mm (9.3 in) respectively. As the year draws to a close, December’s drier climate hints at the onset of a quieter period, where the harmonious balance of seasonal weather showcases Atotonilco's transition from the vibrant summer storms to the more subdued winter months. This trend reflects the broader pattern of sharply decreasing rainfall, highlighting the region’s unique climatic shifts as it moves toward the new year.

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.
JanFebMarAprMayJunJulAugSepOctNovDec191711425112292151237911912
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

December Humidity in Atotonilco

In December, Atotonilco experiences a notable humidity level of 83%, which aligns closely with the consistently high figures seen in the preceding months of July and August (both at 82% and 83%, respectively). This winter month marks the tail end of a significant humid stretch, which begins in the middle of the year, peaking in September at a striking 86%. As the cool season approaches, humidity remains elevated, creating a unique atmospheric richness that characterizes the region's climate. Overall, December continues the trend of high humidity that dominates Atotonilco from the warm summer months through to the end of the year, providing a vivid contrast to the drier early months, such as March and April, when humidity dips to around 47%.

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.
JanFebMarAprMayJunJulAugSepOctNovDec71%64%49%47%55%77%82%83%86%83%80%83%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Atotonilco

In December, Atotonilco, Mexico, experiences a UV Index of 8, categorizing the exposure as very high with a burn time of just 15 minutes. This marks a notable shift from the extreme levels typically seen in the summer months, where the UV Index reached a peak of 15 from April to May. As the year concludes, the UV Index falls back to a level similar to what was observed in January and November, highlighting a seasonal trend where UV exposure lessens during the winter months. However, even in December, caution is advised; proper sun protection remains essential to safeguard against harmful UV radiation. For more detailed information, check out the 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.
JanFebMarAprMayJunJulAugSepOctNovDec8111315151414141413108
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

In December, Atotonilco, Mexico, basks in a welcoming 280 hours of sunshine, rounding off a year characterized by a steady glow. The trend reveals a gradual increase in daylight hours from the beginning of the year, peaking in May with an impressive 349 hours. As summer gives way to winter, the sunshine hours slightly diminish, yet December still offers a generous respite from the chill. Despite the dip, the city's consistent exposure to sunlight throughout the year underscores its charm, making it an inviting destination for those seeking warmth and brightness even in the cooler months.

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.
JanFebMarAprMayJunJulAugSepOctNovDec229h266h320h330h349h322h313h326h279h293h284h280h
Data source: Atotonilco December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Atotonilco During December

In Atotonilco, Mexico, the likelihood of experiencing sunny weather in December stands at 64%, mirroring the conditions seen in November. As the year progresses, a noticeable trend emerges: the early months consistently boast higher chances of sunshine, particularly February, which peaks at 77%. However, the sun seems to shy away during the summer months, with July and August plummeting to 22% and 32%, respectively. As the year winds down, December returns to a promising degree of sunshine, aligning with the patterns established in the fall, ensuring a bright finale to the year in this vibrant region.

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.
JanFebMarAprMayJunJulAugSepOctNovDec62%77%69%66%71%41%22%32%28%54%64%64%
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 rhythm of daylight gently shifts throughout the year, creating a fascinating pattern. As winter sets in, December experiences a drop to 10 hours of daylight, mirroring January's brevity. The days gradually elongate from February through May, peaking at a generous 13 hours in late spring and summer, before transitioning back to shorter daylight hours in the fall and winter months. This cyclical dance of light not only influences the landscape but also sets the stage for a vibrant tapestry of seasonal activities, inviting both residents and visitors to embrace the warmth and beauty of each unique moment under the sun.

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.
JanFebMarAprMayJunJulAugSepOctNovDec10h 52m11h 22m12h 1m12h 42m13h 15m13h 31m13h 22m12h 53m12h 14m11h 34m11h10h 42m
Data source: Atotonilco daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Atotonilco

In December, the winds in Atotonilco, Mexico, pick up slightly, reaching an average speed of 2.1 m/s (5 mph). This modest increase follows a trend of fluctuating wind patterns throughout the year, with early months like January and February maintaining similar softness at around 2.5 m/s (6 mph). The spring months see a gentle rise, peaking in April at 3.0 m/s (7 mph), before gradually tapering off during the summer, when winds become much lighter, particularly in July with just 1.5 m/s (3 mph). The transition to December brings a brief revival of wind activity, suggesting a shift as the cooler months approach, inviting a refreshing chill to the picturesque landscape. Overall, while December's winds are not the strongest of the year, they mark the beginning of a seasonal change, offering a crisp respite from the warmer months.

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.
JanFebMarAprMayJunJulAugSepOctNovDec2.52.72.83.02.12.11.51.91.61.91.82.1 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 typically range from a minimum of -7°C (20°F) to a maximum of 24°C (76°F), with an average of 10°C (51°F). The month experiences relatively low precipitation at 12 mm (0.5 in) over just two days and a high humidity level of 83%. In contrast, January sees slightly milder conditions, with minimum temperatures around -5°C (24°F) and a maximum of 23°C (74°F), while maintaining a similar average of 10°C (50°F). However, January receives more precipitation, totaling 19 mm (0.8 in) over the same two days, alongside decreased humidity at 71%. For more detailed insights on January weather in this region, visit Atotonilco weather in January.

December and February exhibit notable differences in weather patterns. December typically has a lower average temperature of 10°C (51°F), with a minimum of -7°C (20°F) and a maximum of 24°C (76°F). It also sees somewhat higher humidity at 83% and experiences around 12 mm (0.5 in) of precipitation over two days. In contrast, February boasts a slightly warmer average temperature of 12°C (54°F), featuring a minimum of -5°C (24°F) and a maximum of 27°C (80°F). It is drier, with precipitation totaling 17 mm (0.7 in) occurring over just one day, and the humidity drops to a more comfortable 64%. For more detailed information, check out Atotonilco weather in February.

In December, temperatures can be quite chilly, with a minimum of -7°C (20°F) and average temperatures reaching around 10°C (51°F), while highs can reach up to 24°C (76°F). The month is characterized by higher humidity at 83% and about 12 mm (0.5 in) of precipitation spread over 2 days. In contrast, March offers a noticeable warming trend, where temperatures range from a minimum of 1°C (34°F) to an average of 15°C (59°F), with maximum temperatures climbing to 30°C (86°F). March sees lower humidity at 49% and a slight decrease in precipitation, totaling 11 mm (0.4 in) over just 1 day. For more specific insights on how the weather unfolds in March, check out Atotonilco weather in March.

When comparing December and April weather, there are notable contrasts in temperature and humidity. December typically experiences a wide range, with minimum temperatures dipping to -7°C (20°F) and maximums reaching 24°C (76°F), creating an average of around 10°C (51°F). It also boasts a higher humidity level of 83% and receives about 12 mm (0.5 in) of precipitation over two days. In contrast, April is generally much warmer, with lows around 1°C (35°F) and high temperatures averaging 30°C (86°F), leading to an average temperature of 17°C (62°F). Additionally, April sees significantly less precipitation, only 3 mm (0.1 in) over just one day, and the humidity drops to a more comfortable 47%. For a closer look at the specifics, check out Atotonilco weather in April.

In December, the weather presents a much cooler profile with temperatures ranging from a minimum of -7°C (20°F) to a maximum of 24°C (76°F), averaging around 10°C (51°F). With only 12 mm (0.5 in) of precipitation occurring over two days, the humidity levels remain high at 83%. In contrast, May experiences a significant rise in temperatures, with a minimum of 5°C (41°F) and a maximum reaching 32°C (90°F), averaging at 19°C (66°F). Precipitation also increases to 25 mm (1.0 in) over five days, but humidity is notably lower at 55%. For more details on the weather during May, you can check this link: Atotonilco weather in May.

December and June offer distinctly different weather experiences. In December, temperatures can drop to a brisk minimum of -7°C (20°F), with averages around 10°C (51°F) and highs reaching up to 24°C (76°F). The humidity is higher at 83%, but precipitation is relatively low, with only 12 mm (0.5 in) falling over about 2 days. In contrast, June brings milder temperatures with a minimum of 8°C (46°F), an average of 19°C (67°F), and maximums of 33°C (91°F). The month is much wetter, with 111 mm (4.4 in) of rain spread over 11 days, and a slightly lower humidity level of 77%. For more details, you can check Atotonilco weather in June.

December and July exhibit distinctly different weather patterns. In December, temperatures can drop as low as -7°C (20°F) at night, with an average of 10°C (51°F) and daytime highs reaching up to 24°C (76°F). The month experiences minimal precipitation, with only 12 mm (0.5 in) falling over just 2 days, and maintains a high humidity level of 83%. In contrast, July is significantly warmer, with nighttime lows of 9°C (48°F) and average temperatures around 17°C (63°F), peaking at 27°C (81°F). However, July is much wetter, receiving a hefty 292 mm (11.5 in) of rain across 23 days, while humidity remains slightly lower at 82%. For a closer look at July's weather specifics, visit Atotonilco weather in July.

The weather in December presents a stark contrast to that of August. In December, temperatures range from a chilly -7°C (20°F) at night to a comfortable average of 10°C (51°F) during the day, with a maximum reaching 24°C (76°F). The month experiences minimal rainfall, with just 12 mm (0.5 in) over two days, and a consistently high humidity of 83%. On the other hand, August is warmer, with nighttime lows of 9°C (49°F) and daytime highs averaging 27°C (81°F). However, it sees significantly more precipitation, totaling 151 mm (6.0 in) over 18 days, while maintaining the same humidity level of 83%. For a detailed perspective on the weather specifics, you can explore Atotonilco weather in August.

In comparing the weather of December and September, significant differences emerge. December experiences a broader temperature range, with minimums dropping to -7°C (20°F) and maximums reaching up to 24°C (76°F), while the average sits at 10°C (51°F). In stark contrast, September presents milder conditions, with temperatures ranging from a minimum of 8°C (47°F) to a maximum of 26°C (79°F), averaging 16°C (61°F). Additionally, December boasts only 12 mm (0.5 in) of precipitation over just 2 days, whereas September is much wetter, with 237 mm (9.3 in) of rain spread across 22 days. Humidity levels are quite similar in both months, with December at 83% and September at 86%. For more detailed insights on September's weather, you can visit Atotonilco weather in September.

When comparing the weather between October and December, it's clear that December experiences a wider temperature range, with minimums dipping as low as -7°C (20°F) compared to October's milder low of 4°C (39°F). On average, December's temperatures sit at 10°C (51°F), while October boasts a more temperate 15°C (59°F). Additionally, while October is quite wet with 91 mm (3.6 in) of precipitation spread over 9 days, December sees significantly less rainfall, totaling only 12 mm (0.5 in) over just 2 days. Both months share a high humidity level of 83%, creating a damp chill in December and a crisp fall atmosphere in October. For more detailed information, check out Atotonilco weather in October.

In comparing the weather between November and December, we see some notable differences. While November boasts a slightly higher average temperature of 13°C (55°F) and a maximum of 25°C (78°F), December experiences cooler conditions, with an average of 10°C (51°F) and a maximum reaching 24°C (76°F). Both months have similar precipitation patterns, with December receiving 12 mm (0.5 in) over 2 days, while November has a bit more at 19 mm (0.8 in) over the same number of days. Interestingly, December's humidity is slightly higher at 83% compared to November's 80%. For more detailed insights on November weather, check out Atotonilco weather in November.

Compare Atotonilco's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Atotonilco

As December arrives in Atotonilco, the weather transforms into a crisp and refreshing experience that notably contrasts the warmer months. Visitors can expect comfortable daytime temperatures, cool evenings, and the occasional frosty night, making it a unique time of year for exploration and outdoor activities. The month sees minimal precipitation, ensuring plenty of sunshine to enjoy the stunning landscapes, while higher humidity adds a refreshing twist to the cool air. For those keen to plan their visit, further details can be found at Atotonilco Climate.