Last updated: April 22, 2025
December in San Andres, Mexico presents a unique blend of mild temperatures and increased humidity. Daily maximums reach a comfortable 25°C (77°F), while the average temperature settles around a brisk 12°C (54°F), providing refreshing coolness for visitors. The month experiences minimal rainfall, averaging only 5 mm (0.2 in) across just one day, making it an ideal time for outdoor explorations. Despite the low precipitation, humidity levels hover at a significant 88%, adding to the overall atmospheric richness of the region. Whether you're wandering through picturesque streets or enjoying local cuisine, December’s climate offers a delightful escape into San Andres’ natural beauty.
In December, temperatures in San Andres, Mexico, start to dip, with minimums reaching as low as -1°C (30°F), creating a crisp winter ambiance. The average temperature settles at around 12°C (54°F), offering a refreshing contrast to the warmer months that precede it. As the month progresses, daytime highs max out at 25°C (77°F), maintaining a comfortable climate ideal for outdoor activities. This drop in temperature signifies a notable shift from the milder conditions of November, where the average held at 13°C (56°F), heralding the onset of winter while still allowing for pleasant daytime experiences. As the year closes, visitors can expect a mix of brisk mornings and cozy afternoons, encapsulating the charm of San Andres in December.
December in San Andres, Mexico, marks a significant shift in precipitation patterns as the rainy season winds down. With only 5 mm (0.2 in) of rainfall spread over just 1 day, it’s one of the driest months of the year. This stark contrast follows the heavy downpours from the previous months, particularly June through September, when average monthly rainfall reached impressive heights of over 171 mm (6.7 in). The decreasing humidity and minimal rain in December signal the onset of the dry winter months, offering residents and visitors a welcome respite and clear skies to enjoy the picturesque scenery of San Andres.
In December, the humidity in San Andres, Mexico, registers at a notable 88%, reflecting the area's characteristic moistness as it approaches the end of the year. This month typically experiences a slight reduction from the high of 91% in October and remains elevated compared to the seasonal average. Following a gradual decline from April's 70% peak, December's humidity suggests a return to heavier moisture levels, especially as the region transitions into its cooler months. Interestingly, while March and July offer the lowest humidity readings at 75% and 68% respectively, the trend shows a consistent increase toward the end of the calendar year, making December feel lush yet refreshing for residents and visitors alike.
In San Andres, Mexico, the UV Index remains notably high throughout the year, with December showing an index of 8, categorized as very high. With a burn time of just 15 minutes, this reflects a slight decrease from the extreme levels noted in the summer months, where the index peaked at 15 in April and May. As we transition from the extreme exposures of mid-year back to the high levels seen in late fall and winter, it's crucial to stay vigilant about sun protection. This trend underscores the persistent intensity of UV radiation in this tropical region, making understanding and monitoring the UV index essential for both residents and visitors. To learn more about the UV trends in this area, check out San Andres UV Index.
UV Risk Categories
As the year winds down, December in San Andres, Mexico delivers a delightful burst of sunshine, boasting an impressive 291 hours of bright daylight. This brings the total hours of sunshine throughout the year full circle, following a trend of gradual increase from the cooler winter months. After a robust start in January with 235 hours, the sun builds its presence, culminating in 335 hours by May. Although there is a slight dip during the summer months, the sun consistently shines for longer periods as the year progresses, enriching December with a golden glow that invites both relaxation and adventure amidst its picturesque landscape. Whether you're basking on the beach or exploring the vibrant local culture, December's generous sunshine offers the perfect setting for unforgettable experiences.
In December, San Andres, Mexico, enjoys a commendable 72% chance of sunny weather, making it one of the brighter months of the year. This follows a notable increase as the rainy season winds down, with November still experiencing a moderate 45% likelihood of sun. Comparing December to the less favorable summer months, where chances drop to as low as 12% in June, July, and September, it's clear that late autumn brings a refreshing return to sunnier days. As we move toward the end of the year, travelers can anticipate a pleasant climate that stands out against the backdrop of the preceding months, with December offering the perfect opportunity to bask in the warm sun.
In San Andres, Mexico, daylight duration exhibits a rhythmic pattern throughout the year, with a noticeable peak in the summer months. As December arrives, the days grow notably shorter, offering just 10 hours of sunlight. This decline follows a steady increase from 11 hours in the preceding months of January and February, reaching up to 13 hours in May through July. As autumn sets in, daylight begins to taper off again, returning to 11 hours in October and November before hitting the year's minimum in December. This cyclical nature highlights San Andres' distinct seasonal shifts, making the quaint charm of the winter months all the more inviting.
As December rolls in, San Andres, Mexico experiences a gentle breeze, with an average wind speed of just 1.7 m/s (4 mph), marking the year's calmest month. This decline in wind speed signals a shift from the relatively breezy conditions noted in the earlier months, particularly from January through November, where the winds consistently hovered around 2.0 m/s to 2.5 m/s. October and November witnessed slightly steadier conditions, but as the year comes to a close, December envelops the region in a tranquil stillness. This seasonal dip invites a serene atmosphere, perfect for enjoying the picturesque landscapes and culture that San Andres has to offer.
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 range from a minimum of -1°C (30°F) to a maximum of 25°C (77°F), with an average of 12°C (54°F) and very little precipitation, amounting to just 5 mm (0.2 inches) over the course of only one day. The humidity level tends to be quite high at 88%, contributing to a cooler feel, especially during the evenings.
In contrast, January sees slightly warmer temperatures overall, with a maximum of 26°C (79°F) and a similar minimum of -1°C (30°F). Precipitation increases to 11 mm (0.4 inches) over two days, and humidity decreases to a more comfortable 84%. This subtle shift in weather makes January a bit wetter but feels slightly warmer than December. For more specifics, you can check San Andres weather in January.
In December, the weather is generally cooler, with minimum temperatures dipping to -1°C (30°F) and an average of 12°C (54°F), while occasionally reaching a maximum of 25°C (77°F). This month experiences minimal precipitation, with only 5 mm (0.2 in) over just one day and a relatively high humidity of 88%.
In contrast, February brings slightly warmer temperatures, with minimums of 2°C (36°F) and an average of 14°C (58°F), peaking at 29°C (85°F). However, this month sees increased precipitation, totaling 14 mm (0.6 in) over three days, accompanied by lower humidity levels at 78%.
For more detailed information about February's climate, check San Andres weather in February.
December and March exhibit notable differences in weather patterns. December experiences cooler temperatures, with a minimum of -1°C (30°F) and an average of 12°C (54°F), peaking at 25°C (77°F). The month sees minimal precipitation, averaging just 5 mm (0.2 in) over a single day, paired with high humidity levels at 88%. In contrast, March welcomes milder conditions, with temperatures ranging from a minimum of 4°C (39°F) to an average of 16°C (62°F) and a maximum of 31°C (88°F). This month experiences increased rainfall, totaling 24 mm (0.9 in) across six days, and a lower humidity level of 75%. For more insights on March weather, you can check out San Andres weather in March.
In December, the weather is notably cooler, with temperatures ranging from a minimum of -1°C (30°F) to a maximum of 25°C (77°F), averaging around 12°C (54°F). The month sees minimal precipitation, with just 5 mm (0.2 in) over one day and high humidity at 88%. In contrast, April experiences warmer temperatures, with a minimum of 5°C (41°F) and a maximum of 31°C (88°F), averaging 18°C (64°F). However, April is also wetter, accumulating 40 mm (1.6 in) of rain over eight days, with humidity decreasing to 70%. For more detailed insights, you can check San Andres weather in April.
December and May present distinct contrasts in weather. December typically experiences cooler temperatures, with lows around -1°C (30°F) and highs reaching up to 25°C (77°F), along with high humidity at 88% and minimal precipitation of just 5 mm over 1 day. In contrast, May warms up significantly, featuring temperatures that range from a minimum of 8°C (46°F) to a maximum of 32°C (90°F). This month also sees a marked increase in rainfall, with 55 mm falling over about 10 days, and a moderate humidity of 77%. For a more detailed look at what to expect, check out San Andres weather in May.
In December, temperatures in San Andres range from a chilly minimum of -1°C (30°F) to a pleasant maximum of 25°C (77°F), with an average temperature of 12°C (54°F). The month is characterized by low precipitation, receiving only 5 mm (0.2 in) over the course of just one day, and a high humidity level of 88%. In stark contrast, June brings much warmer weather, with temperatures ranging from a minimum of 8°C (46°F) to a maximum of 31°C (87°F), and an average of 18°C (64°F). However, June is also a wet month, experiencing significant rainfall of 171 mm (6.7 in) spread across 18 days, with humidity levels at 76%. For more detailed insights, check out San Andres weather in June.
In December, the weather tends to be milder, with temperatures ranging from a chilly -1°C (30°F) at night to a pleasant high of 25°C (77°F) during the day. There is minimal rainfall, averaging only 5 mm (0.2 in) over just one day, accompanied by high humidity at 88%. In contrast, July experiences much warmer temperatures, with minimums around 9°C (49°F) and maximums peaking at 26°C (79°F), but overall averages remain lower at 16°C (62°F). This month sees significant precipitation, totaling 167 mm (6.6 in) across 23 days, along with lower humidity levels at 68%. For more detailed insights on July weather, you can visit San Andres weather in July.
In December, the weather is cooler with temperatures ranging from a minimum of -1°C (30°F) to a maximum of 25°C (77°F) and an average of 12°C (54°F). The month is relatively dry, experiencing only 5 mm (0.2 in) of precipitation over just one day, coupled with high humidity at 88%. In contrast, August offers warmer temperatures, with a minimum of 9°C (49°F), an average of 16°C (62°F), and a maximum of 27°C (81°F). However, it is significantly wetter, receiving 164 mm (6.4 in) of rain over 23 days and lower humidity levels at 70%. For a deeper insight into August's weather specifics, check out San Andres weather in August.
In comparing December and September weather, December tends to showcase milder temperatures, with average highs around 25°C (77°F) and minimal rainfall of just 5 mm (0.2 in) over the course of one day. In contrast, September is characterized by cooler minimum temperatures averaging 6°C (44°F) and significantly higher precipitation, totaling 202 mm (8.0 in) spread across 21 days. Despite both months reaching similar maximum temperatures of 25°C (78°F), December’s lower humidity at 88% offers a more comfortable atmosphere compared to September’s 82%. For a detailed look at September weather, visit San Andres weather in September.
The weather in December is generally milder compared to October, with average temperatures ranging from a minimum of -1°C (30°F) to a maximum of 25°C (77°F). In contrast, October tends to be slightly warmer, with temperatures varying from 4°C (39°F) to 26°C (78°F), but it also experiences significantly more rainfall, accumulating 95 mm (3.7 in) over 15 days, compared to just 5 mm (0.2 in) on a single day in December. Humidity levels are relatively similar, with December at 88% and October at 91%. For more detailed information, check out San Andres weather in October.
In comparing the weather of December and November, December tends to be cooler with minimum temperatures dipping to -1°C (30°F) compared to November's minimum of 1°C (34°F). Both months have similar average temperatures, but December sees a slightly lower average of 12°C (54°F) against November's 13°C (56°F). Notably, December experiences much less precipitation at only 5 mm (0.2 in) over just 1 day, while November has significantly more with 22 mm (0.9 in) across 5 days. Humidity levels remain close between the two months, with December at 88% and November at 89%. For more information, check out San Andres weather in November.
As December unfolds in San Andres, the weather presents a refreshing contrast to the warmer months preceding it. With temperatures averaging a cool 12°C (54°F), this month introduces a serene tranquility often missed during peak seasons. The relatively low precipitation of just 5 mm across a mere day, coupled with high humidity at 88%, creates a crisp yet comfortable atmosphere perfect for enjoying the town’s scenic beauty. While other months may boast higher averages, December offers a unique charm that's ideal for visitors seeking a quieter experience. For a deeper insight into what to expect, explore San Andres Climate.