December Weather in San Andres, Mexico

Last updated: April 22, 2025

Experience the December weather in San Andres, Mexico, where temperatures offer a mild escape with a maximum of 24°C (75°F) and a comfortable average of 9°C (48°F). While the evenings can plunge to a chilly minimum of -7°C (19°F), the month's overall vibe remains inviting, punctuated by only 14 mm (0.6 in) of rainfall across just 2 days. With humidity levels at 84%, December is a perfect time to explore the enchanting landscapes of San Andres, providing a refreshing yet pleasant backdrop for winter adventures.

December Temperature in San Andres

In December, temperatures in San Andres, Mexico, reflect the transition into the winter season, with minimums dropping to -7°C (19°F) and averages hovering around 9°C (48°F). This marks a notable dip from the milder autumn months, transitioning from November's more moderate averages of 13°C (56°F). Nevertheless, daytime highs can still reach a pleasant 24°C (75°F), providing a comfortable range for outdoor activities and exploration. This month encapsulates the charm of San Andres, offering cool, crisp mornings that warm to enjoyable afternoons, perfect for savoring the scenic landscapes and vibrant culture.

December Weather in San Andres: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in San Andres, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec475157647177737268635548
Data source: Temperature data for San Andres 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 Andres

In December, San Andres, Mexico, experiences a notable decrease in precipitation as the year draws to a close, with an average of 14 mm (0.6 in) of rain falling over just 2 days. This slight uptick compared to November's 16 mm suggests a gradual shift as the wet season gives way to drier conditions. The trend of reduced rainfall continues from the heavier months of July and August, which saw significant precipitation amounts of 107 mm and 93 mm respectively. As temperatures cool, December serves as a transition month, hinting at the approaching dry season while still retaining some residual moisture from the wetter months earlier in the year. Overall, the precipitation patterns reflect a shift from the intense rain of mid-year to a more moderate climate typical of late autumn, making December a cozy yet unpredictably wet finale to the year.

December Precipitation Trends in San Andres

The chart displays monthly precipitation patterns in San Andres, 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.
JanFebMarAprMayJunJulAugSepOctNovDec85635311079378331615
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in San Andres

In December, San Andres, Mexico, experiences a noticeable shift in humidity, peaking at 84%. This increase marks the culmination of a gradual rise in moisture levels throughout the year, starting from a comfortable 49% in May. The trend highlights a distinct seasonal pattern, with humid conditions progressively intensifying from mid-year onward. After a dip in humidity during the warmer months of April to June, the latter part of the year sees a resurgence, culminating in the highest levels seen in November and December. This December humidity not only signals the onset of the cooler season but also adds to the vibrant, tropical atmosphere of this charming locale.

December Average Humidity in San Andres

This chart illustrates the average monthly humidity levels in San Andres, 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.
JanFebMarAprMayJunJulAugSepOctNovDec78%71%60%52%49%50%65%70%79%77%83%85%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in San Andres

In December, San Andres, Mexico, experiences a UV Index rating of 6, categorized as high, which allows for a more cautious approach to sun exposure. With a burn time of 25 minutes, this month marks a notable decrease from the extreme levels seen in the summer months, where indices soared up to 14 in May. As the year winds down, the UV levels begin to moderate, providing a welcome reprieve for residents and visitors alike. This trend of fluctuating UV intensity serves as a reminder to stay vigilant in sun protection, especially during the peak index months from March to September. For more detailed information on sun safety, check the San Andres UV Index.

Maximum UV Index Levels in San Andres for December

The chart shows the monthly maximum UV Index (UVI) for San Andres 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.
JanFebMarAprMayJunJulAugSepOctNovDec69111314131313121086
Data source: San Andres 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 Andres

December in San Andres, Mexico, offers a delightful blend of warmth and sunshine, with 265 hours of sun illuminating the month. Though slightly lower than its peak in April, which basks in 326 hours of radiant light, December still enjoys a healthy dose of brightness, perfect for holiday festivities and beachside relaxation. As the year wraps up, the sunlight shimmer continues its descent from the vibrant highs of summer, like May’s remarkable 365 hours. This transition reveals a gentle trend of diminishing daylight, moving from lush brightness in the earlier months to a more temperate glow by the year's end, inviting visitors to soak up the last rays of the season in this picturesque locale.

Monthly Sunshine Duration in San Andres: December Highlighted

The December sunshine duration represents the total number of hours San Andres 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.
JanFebMarAprMayJunJulAugSepOctNovDec221h260h304h326h365h351h349h336h295h291h263h265h
Data source: San Andres December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in San Andres During December

When considering the likelihood of sunny weather in December in San Andres, Mexico, it's notable that the chance of sunshine hovers at 50%. This marks a significant decline from the preceding months, particularly October, which enjoys a robust 79% chance of sun, and November at 65%. The trends reveal a gradual dip in sunshine from the vibrant spring months of March and May, both at 77%, to the less predictable winter period. While December still offers opportunities for bright days, visitors should be prepared for a mix of weather, embracing both the potential for sun and the charm of a cooler Mediterranean climate.

Percentage of Sunny Days in December in San Andres

The chart illustrates the percentage of sunny days in San Andres 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 Andres experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec77%64%77%67%77%60%56%47%61%79%65%50%
Data source: San Andres December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in San Andres in December

In San Andres, Mexico, the daylight duration experiences a captivating ebb and flow throughout the year. Beginning in January with about 10 hours of daylight, the days gradually lengthen, peaking at an impressive 13 hours from May to August. This sunny period fosters vibrant outdoor activities and a lively atmosphere, ideal for soaking up the sun. As summer fades, the daylight begins to wane, descending back to 12 hours in September and then gently tapering to 10 hours by December. This cyclical dance of light not only marks the passage of seasons but also shapes the rhythm of life in this picturesque locale.

Average Daylight Hours in San Andres for December

The chart illustrates the variation in daylight duration in San Andres throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 32m11h 11m12h12h 51m13h 34m13h 55m13h 43m13h 5m12h 17m11h 26m10h 42m10h 20m
Data source: San Andres daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in San Andres

In San Andres, Mexico, December ushers in a gentle breeze with an average wind speed of 3.0 m/s (7 mph), marking a slight uptick from the often calmer late fall months. As the year progresses, a clear trend emerges: wind speeds generally rise in the early months, peaking in March at 4.2 m/s (9 mph), before entering a gradual decline throughout the summer. July and August are notably calm, featuring wind speeds as low as 2.1 m/s (5 mph). However, the return to more moderate breezes in December signals a subtle transition, inviting visitors to experience the pleasant, refreshing gusts that characterize this charming coastal town during the winter months.

Average December Wind Speed in San Andres

The chart displays monthly wind speed patterns in San Andres, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.93.64.23.73.43.12.22.12.32.92.33.0 m/s
Data source: San Andres December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in San Andres Compares to Other Months

The weather in San Andres 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 Andres and find detailed weather information for every month.

In December, temperatures in San Andres range from a chilly -7°C (19°F) at night to a pleasant high of 24°C (75°F) during the day, with an average temperature of 9°C (48°F). The month sees a total precipitation of 14 mm (0.6 in) over just 2 days, contributing to a high humidity level of 84%. In contrast, January experiences slightly milder temperatures, with a minimum of -6°C (21°F) and an average of 8°C (47°F), while still reaching a maximum of 24°C (76°F). Precipitation decreases to 8 mm (0.3 in) over the same number of days, and humidity levels drop to 78%. For more detailed insights, you can explore San Andres weather in January.

December and February exhibit some notable differences in weather patterns. In December, temperatures range from a minimum of -7°C (19°F) to a maximum of 24°C (75°F), with an average of 9°C (48°F) and significant humidity at 84%. Precipitation is relatively low, with only about 14 mm (0.6 in) over 2 days. In contrast, February sees slightly warmer conditions, with an average temperature of 11°C (51°F), peaking at 28°C (83°F), while maintaining a similar minimum of -7°C (20°F). Precipitation decreases even further to just 4 mm (0.2 in) over a single day, and humidity drops to 71%. For more detailed insights into February weather, you can check San Andres weather in February.

In December, the weather is characterized by cooler temperatures, with a minimum of -7°C (19°F) and an average of 9°C (48°F), peaking at a maximum of 24°C (75°F). This month experiences a higher humidity level of 84% and receives about 14 mm (0.6 in) of precipitation over 2 days. In contrast, March brings a noticeable increase in warmth, featuring a minimum temperature of -3°C (26°F) and an average of 14°C (58°F), reaching up to 31°C (87°F) at its highest. The precipitation decreases to 6 mm (0.2 in), still spread over 2 days, and humidity drops significantly to 60%. For more detailed weather insights, you can check San Andres weather in March.

In December, temperatures in San Andres range from a chilly -7°C (19°F) to a comfortable max of 24°C (75°F), with an average of 9°C (48°F). This month experiences a higher humidity at 84% and sees about 14 mm (0.6 in) of precipitation over two days. In contrast, April brings milder conditions, with temperatures ranging from a minimum of 3°C (37°F) to a maximum of 31°C (88°F), and an average of 18°C (65°F). The humidity drops significantly to 52%, and rainfall is minimal at just 3 mm (0.1 in) over a single day. For more details on the typical climate during this month, you can check San Andres weather in April.

In December, temperatures are quite chilly, with a minimum of -7°C (19°F) and an average of 9°C (48°F), peaking at a maximum of 24°C (75°F). The month sees about 14 mm (0.6 in) of precipitation over just 2 days, accompanied by high humidity at 84%. In contrast, May experiences a much warmer climate, with temperatures ranging from a minimum of 5°C (40°F) to a pleasant average of 22°C (72°F), and highs reaching up to 35°C (95°F). Precipitation is less frequent, only about 5 mm (0.2 in) over just 1 day, and humidity drops significantly to 49%. For more detailed information, check out San Andres weather in May.

December and June present stark contrasts in weather patterns. In December, temperatures range from a chilly minimum of -7°C (19°F) to a comfortable average of 9°C (48°F), peaking at 24°C (75°F). This month experiences relatively low precipitation, with only 14 mm (0.6 in) over just two days, accompanied by high humidity at 84%. In contrast, June boasts significantly warmer temperatures, with a minimum of 11°C (52°F) and an average high of 25°C (77°F), soaring to a maximum of 37°C (98°F). The month brings more rainfall, totaling 31 mm (1.2 in) across four days, but with a much lower humidity of 50%. For a closer look at the June weather conditions, you can check out San Andres weather in June.

In December, the weather is much cooler, with temperatures ranging from a low of -7°C (19°F) to a high of 24°C (75°F), and humidity levels peaking at 84%. This month experiences minimal precipitation, averaging only 14 mm over just 2 days. In contrast, July offers a significantly warmer climate, with temperatures ranging from a low of 14°C (57°F) to a sweltering high of 35°C (95°F). The summer month sees considerable rainfall, accumulating to 107 mm over 14 days, along with lower humidity levels at 65%. For more details on July weather, you can visit San Andres weather in July.

December and August exhibit stark differences in weather patterns. December features a colder climate with temperatures ranging from a chilly -7°C (19°F) at night to a mild 24°C (75°F) during the day, complemented by relatively low precipitation of 14 mm (0.6 in) over just two days, and high humidity at 84%. In contrast, August boasts significantly warmer temperatures, with a minimum of 10°C (50°F), an average of 22°C (72°F), and a maximum reaching 33°C (92°F). Additionally, August brings much higher rainfall, totaling 93 mm (3.7 in) over 13 days, while maintaining a lower humidity level of 70%. For more detailed insights on the climate during this month, you can refer to San Andres weather in August.

When comparing the weather in December and September, there are noticeable differences in temperature and precipitation. December experiences a minimum temperature of -7°C (19°F), with an average of 9°C (48°F) and a maximum of 24°C (75°F). It also sees relatively low precipitation at just 14 mm (0.6 in) over 2 days, alongside high humidity levels of 84%. In contrast, September is significantly warmer, with a minimum of 8°C (47°F), an average of 20°C (68°F), and a maximum of 31°C (87°F). This month is also wetter, with 78 mm (3.1 in) of rain spread over 12 days, although humidity is slightly lower at 79%. For more detailed insights into September's climate, check San Andres weather in September.

When comparing the weather in December and October, notable differences emerge. December experiences a wider temperature range, with minimums dipping to -7°C (19°F) and maximums reaching 24°C (75°F), while October maintains milder temperatures, ranging from -2°C (28°F) to a maximum of 30°C (86°F). Precipitation is lower in December, with only 14 mm (0.6 in) over 2 days, as opposed to October's 33 mm (1.3 in) over 6 days, indicating a wetter October. Additionally, December's humidity stands at 84%, higher than October's 77%, contributing to a chillier atmosphere in the former month. For more detailed insights into October weather, visit San Andres weather in October.

In comparing the weather of December and November, it is evident that December tends to be cooler overall, with average temperatures dropping from 13°C (56°F) in November to 9°C (48°F) in December. The minimum temperatures in December reach as low as -7°C (19°F), slightly cooler than November's minimum of -5°C (23°F). While both months receive a similar amount of precipitation at 14 mm (0.6 in) in December and 16 mm (0.6 in) in November, the humidity remains relatively consistent, with December at 84% and November at 83%. For more detailed insights, you can check out San Andres weather in November.

Compare San Andres's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in San Andres

In December, San Andres experiences a noticeable shift in weather compared to other months, with cooler temperatures that bring a refreshing ambiance to the region. The average highs dip significantly, making the inviting warmth of the previous seasons feel like a distant memory. Although the month sees minimal precipitation, the high humidity levels at 84% can create a unique atmosphere, especially on the occasional rainy days. This blend of crisp air and festive spirit provides the perfect backdrop for exploring the natural beauty of the area. For more insights into what to expect throughout the year, visit San Andres Climate.