December Weather in Merida, Mexico

Last updated: April 22, 2025

December in Mérida, Mexico presents a delightful blend of warm temperatures and refreshing humidity. With a maximum temperature soaring up to 34°C (94°F), the city enjoys an average of 24°C (75°F), making it a perfect escape for sun-seekers. The minimum temperature dips to a comfortable 12°C (54°F) during the nights, offering a cozy environment for evening strolls. Rainfall is minimal, with only 17 mm (0.7 in) of precipitation spread across 4 days, allowing residents and visitors alike to revel in outdoor activities. Despite the occasional drizzle, the humidity holds steady at 86%, providing a lush backdrop to the vibrant culture and stunning landscapes of Mérida.

December Temperature in Merida

In December, Merida, Mexico, showcases a delightful climate as the year winds down. Temperatures typically range from a comfortable 12°C (54°F) at night to a pleasant 34°C (94°F) during the day, with an average of 24°C (75°F). This marks a transition into cooler evenings and warm, sunny days, making it an ideal time for outdoor activities and exploring the vibrant culture of the city. As the holiday season approaches, visitors can enjoy the mild weather, a contrast to the sweltering heat that characterizes the summer months. Overall, December in Merida offers a perfect blend of warmth and refreshment, inviting travelers to bask in the festive atmosphere.

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

The chart illustrates December temperature patterns in Merida, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec747779838483838382817775
Data source: Temperature data for Merida 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 Merida

In December, Mérida, Mexico, experiences a notable shift in precipitation patterns as the rainy season winds down. With only 17 mm (0.7 inches) of rain, the month marks a significant drop compared to the summer months, where rainfall peaked at over 150 mm. The month typically sees about 4 rainy days, providing a more tranquil atmosphere following the wettest months of June through October. This transition highlights the city’s move towards drier conditions, as January and February follow with even lower precipitation levels. The gradual decrease in rain allows locals and visitors alike to enjoy clearer skies and mild temperatures, making December a delightful time to explore the vibrant culture and landscapes of Mérida.

December Precipitation Trends in Merida

The chart displays monthly precipitation patterns in Merida, 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.
JanFebMarAprMayJunJulAugSepOctNovDec251062947151711071021183917
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Merida

As the year draws to a close in Merida, Mexico, December marks the peak of humidity, reaching an average of 86%. This month stands out in stark contrast to the dryer spell of late spring, when humidity levels dip to around 68% in May. The trend is clear: as the calendar flips toward the end of the year, moisture levels steadily rise, with November already recording a significant 84%. This gradual ascent culminates in December, where the heavy humidity can create a unique atmosphere, enhancing the warmth of the tropical climate. While visitors may experience some discomfort, the lush landscapes and vibrant culture make the humidity a small price to pay for enjoying Merida's enchanting charm during the festive season.

December Average Humidity in Merida

This chart illustrates the average monthly humidity levels in Merida, 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.
JanFebMarAprMayJunJulAugSepOctNovDec81%78%71%70%68%69%74%81%82%83%84%86%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Merida

In December, Merida, Mexico experiences a notable shift in its UV Index, dipping to 7, characterized as a high exposure category with a burn time of 25 minutes. This marks a decrease from the extreme levels seen in the summer months, where a UV Index of 13 dominated from March through October, requiring a cautious approach with a rapid burn time of just 10 minutes. The transition to December's milder UV exposure offers a more forgiving sunlight experience, although vigilance remains important. As the year concludes, outdoor enthusiasts can appreciate the sun with slightly more time to spare, but it’s still wise to stay informed. For comprehensive insights into UV levels throughout the year, check out Merida UV Index.

Maximum UV Index Levels in Merida for December

The chart shows the monthly maximum UV Index (UVI) for Merida 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.
JanFebMarAprMayJunJulAugSepOctNovDec810131313131312121187
Data source: Merida 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 Merida

December in Mérida, Mexico, offers a delightful blend of warmth and sunshine, with an impressive 289 hours of sunlight. As the year draws to a close, the sunshine count reflects a slight dip compared to the sun-drenched months of late spring and summer, where June and July bask in an average of over 340 hours. The brighter days of March and May peak at 325 and 342 hours, respectively, marking them as the sunniest months. However, even in December, the city remains illuminated, ensuring residents and visitors enjoy a vibrant atmosphere filled with golden rays. This enduring warmth, even in winter, invites exploration of Mérida's rich culture and stunning architecture under the gentle glow of the sun.

Monthly Sunshine Duration in Merida: December Highlighted

The December sunshine duration represents the total number of hours Merida 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.
JanFebMarAprMayJunJulAugSepOctNovDec224h275h325h317h342h296h343h335h312h303h298h289h
Data source: Merida December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Merida During December

In Merida, Mexico, December marks a delightful transition into the dry season, with a 68% chance of sunny weather. This represents a consistent trend, as the likelihood of sun mirrors the previous month of November, which also enjoys a 66% chance of clear skies. Following the pattern of increased sunshine from February through April, December’s likelihood suggests a steady shift towards brighter days as the year draws to a close. Compared to the more unpredictable summer months with their low probabilities of sun, December offers a promising forecast for those looking to bask in the warmth of the Yucatan sun. Whether you're planning outdoor activities or simply soaking in the holiday spirit, the skies in Merida are likely to be on your side.

Percentage of Sunny Days in December in Merida

The chart illustrates the percentage of sunny days in Merida 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 Merida experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec47%68%75%67%47%27%49%53%34%46%66%68%
Data source: Merida December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Merida in December

December in Mérida, Mexico, marks the end of the year with a noticeable shift in daylight duration, providing just 10 hours of daylight. This decrease is part of a gradual trend that starts in late autumn, with daylight peaking at 13 hours during the summer months of May through July. As the seasons transition, daylight begins to dwindle, dropping to 11 hours in both October and November before reaching its winter low in December. This pattern highlights Mérida's tropical climate, where longer daylight hours during the warmer months contrast sharply with the shorter days of winter, inviting locals and visitors alike to embrace the cooler temperatures while navigating the festive daylight.

Average Daylight Hours in Merida for December

The chart illustrates the variation in daylight duration in Merida 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 37m13h 7m13h 22m13h 14m12h 47m12h 13m11h 37m11h 7m10h 52m
Data source: Merida daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Merida

As December arrives in Merida, Mexico, the winds begin to shift, bringing generally mild breezes with an average speed of 2.8 m/s (6 mph). This slight increase from the quieter months of October and November, which saw speeds as low as 2.1 m/s (5 mph), reintroduces a refreshing element to the air, hinting at the transition into the more dynamic winter season. Interestingly, the wind patterns in Merida reflect a gradual ebb and flow throughout the year, with speeds peaking in the spring months of March and April. December's modest currents serve not only as a gentle reminder of the cooler weather ahead but also make for pleasant evening strolls, where the soft rustle of leaves accompanies the city's vibrant festivities.

Average December Wind Speed in Merida

The chart displays monthly wind speed patterns in Merida, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.83.13.63.53.33.02.62.52.42.12.42.8 m/s
Data source: Merida December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Merida Compares to Other Months

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

In December, the weather is characterized by slightly warmer average temperatures, peaking at around 34°C (94°F) and accompanied by higher humidity levels at 86%. The month sees a total precipitation of 17 mm (0.7 in) over approximately 4 days. In contrast, January maintains a similar maximum temperature of 34°C (93°F), but features a marginally cooler average of 23°C (74°F) and slightly reduced humidity at 81%. Moreover, January experiences increased precipitation of 25 mm (1.0 in) over about 3 days. For more detailed insights, you can check Merida weather in January.

In December, the weather is characterized by a minimum temperature of 12°C (54°F) and an average of 24°C (75°F), peaking at 34°C (94°F). The month sees a total precipitation of 17 mm (0.7 in) over about four days, with humidity levels quite high at 86%.

In contrast, February experiences slightly warmer temperatures, with a minimum of 12°C (53°F), an average of 25°C (77°F), and a maximum of 36°C (98°F). Precipitation drops significantly to just 10 mm (0.4 in) over only one day, and humidity decreases to 78%.

Overall, February tends to be warmer and drier than December. For more detailed weather information, check out Merida weather in February.

In December, the weather in Merida is characterized by a comfortable range of temperatures, with a minimum of 12°C (54°F), an average of 24°C (75°F), and a maximum reaching 34°C (94°F). The month experiences relatively high humidity at 86% and sees about 17 mm (0.7 in) of precipitation over four days. In contrast, March is slightly warmer, with temperatures starting at a minimum of 13°C (56°F), averaging 26°C (80°F), and reaching a peak of 38°C (101°F). The month is generally drier, with only 6 mm (0.2 in) of precipitation occurring on just one day, and a lower humidity level of 71%. For detailed insights into Merida's March climate, check out Merida weather in March.

In December, the weather is relatively mild, with temperatures ranging from a minimum of 12°C (54°F) to a comfortable average of 24°C (75°F), peaking at a maximum of 34°C (94°F). The month sees minimal precipitation of 17 mm (0.7 in) over four days, accompanied by high humidity at 86%. In contrast, April brings warmer conditions, with temperatures starting at a minimum of 16°C (61°F) and averaging 28°C (83°F), reaching a sweltering maximum of 40°C (105°F). While precipitation increases to 29 mm (1.2 in) over the same four days, humidity drops to a more comfortable 70%. For more details on the weather patterns, visit Merida weather in April.

In December, the weather is generally milder with average temperatures ranging from a minimum of 12°C (54°F) to a maximum of 34°C (94°F), alongside an average humidity of 86%. Precipitation is relatively low, with only 17 mm (0.7 in) expected over about four days. In contrast, May sees warmer temperatures, with a minimum of 19°C (66°F), an average of 29°C (85°F), and a maximum reaching up to 39°C (103°F). The humidity decreases to 68%, but precipitation increases to 47 mm (1.9 in) over seven days, making it a wetter month overall. For more details, you can check Merida weather in May.

December and June present contrasting weather conditions. In December, temperatures range from a mild 12°C (54°F) at night to a comfortable 34°C (94°F) during the day, with relatively low precipitation of 17 mm (0.7 in) spread over just 4 days, while humidity levels are high at 86%. In sharp contrast, June experiences significantly warmer temperatures, with minimums of 23°C (73°F) and maximums soaring to 39°C (102°F). The month is also much wetter, receiving 151 mm (6.0 in) of rain over 17 days, accompanied by lower humidity at 69%. For more details on the weather in June, visit Merida weather in June.

December and July present quite contrasting weather conditions. In December, temperatures are milder, with a minimum of 12°C (54°F) and an average high of 34°C (94°F), making it more comfortable for outdoor activities. The precipitation is relatively low, with only 17 mm (0.7 in) falling over about 4 days, and humidity peaks at 86%. In contrast, July experiences hotter temperatures, ranging from a minimum of 23°C (73°F) to a maximum of 37°C (98°F), along with significantly higher rainfall of 71 mm (2.8 in) spread over 14 days. The humidity is also lower at 74%, but the heat combined with the increased precipitation can create a muggy atmosphere. For a more detailed look at July weather, visit Merida weather in July.

When comparing the weather in December and August, December offers a milder climate with average temperatures ranging from a minimum of 12°C (54°F) to a maximum of 34°C (94°F), while August is notably warmer, with temperatures ranging from a minimum of 22°C (72°F) to a maximum of 36°C (97°F). Moreover, December experiences significantly less precipitation, averaging just 17 mm (0.7 in) over 4 days, whereas August has much higher rainfall, totaling 107 mm (4.2 in) across 18 days. Humidity levels are also slightly higher in December at 86%, compared to August’s 81%. For more details, you can check out Merida weather in August.

When comparing the weather in December and September, December offers milder temperatures with averages ranging between a minimum of 12°C (54°F) and a maximum of 34°C (94°F), while September tends to be warmer, with temperatures ranging from a minimum of 22°C (72°F) to a maximum of 36°C (97°F). Additionally, December experiences significantly less rainfall, receiving only 17 mm (0.7 in) over 4 days compared to September's 102 mm (4.0 in) spread over 18 days. Humidity levels are slightly higher in December at 86%, while September maintains a slightly lower level at 82%. For a more detailed perspective on September's weather in Mérida, you can check Merida weather in September.

Comparing the weather in December and October reveals distinct differences in temperature and precipitation. In December, temperatures range from a minimum of 12°C (54°F) to a maximum of 34°C (94°F), with an average of 24°C (75°F) and relatively low precipitation of 17 mm (0.7 in) over just 4 days. In contrast, October experiences warmer conditions, with temperatures ranging from a minimum of 16°C (61°F) to a maximum of 36°C (96°F) and an average of 27°C (81°F). Moreover, October is much wetter, accumulating 117 mm (4.6 in) of precipitation over 17 days. Despite this, October has a slightly lower humidity level at 83%, compared to December's 86%. For a detailed look at the weather patterns, check Merida weather in October.

In December, the weather tends to be slightly cooler than in November, with minimum temperatures averaging 12°C (54°F) compared to November's 14°C (57°F). The overall average temperature drops a bit from 25°C (77°F) in November to 24°C (75°F) in December, while the maximum temperatures are quite comparable—34°C (94°F) in December versus 33°C (92°F) in November. Precipitation also decreases significantly, with only 17 mm (0.7 in) falling over 4 days in December, compared to 39 mm (1.5 in) over 8 days in November. Humidity remains relatively high but slightly higher in December at 86%, compared to 84% in November. For more detailed information on November weather, you can check Merida weather in November.

Compare Merida's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Merida

In December, Merida experiences a delightful shift in weather, blending warm temperatures with the festive spirit of the holiday season. The average temperature hovers around a comfortable 24°C (75°F), providing a pleasant escape from the heat of the summer months. While the maximum reaches up to 34°C (94°F), the cooler nights with lows of 12°C (54°F) create a refreshing contrast. It's also a relatively dry month, with only 17 mm (0.7 in) of precipitation over a few days, allowing for plenty of sunshine amidst the 86% humidity that adds a tropical touch. Overall, December in Merida invites travelers to enjoy outdoor festivities and the city's vibrant culture in a uniquely pleasant climate. For more insights, explore Merida Climate.