December Weather in Alamos, Mexico

Last updated: April 22, 2025

Experience the enchanting December weather in Alamos, Mexico! With maximum temperatures reaching a warm 32°C (90°F) and an average of 18°C (64°F), the month offers a delightful retreat from colder climates. Nights can be brisk, dipping to a minimum of 2°C (36°F), perfect for cozy evenings. Though the month sees a modest 23 mm (0.9 in) of rain over just 2 days, the lush scenery remains vibrant, enhanced by an 80% humidity that blankets the town. Embrace the season’s charm and explore the picturesque landscapes and rich cultural heritage this lovely destination has to offer!

December Temperature in Alamos

In December, Alamos, Mexico experiences a decline in temperatures as the year comes to a close. With a minimum of 2°C (36°F) and an average of 18°C (64°F), the weather offers a pleasant respite from the intense heat of the preceding months. The maximum temperature reaches a comfortable 32°C (90°F), providing a lovely balance for both locals and visitors. Compared to the warmer months, December showcases a gentle transition towards cooler days, signalling the onset of winter while still maintaining a delightful warmth during the day. This trend highlights Alamos as an attractive winter destination, where mild temperatures allow for outdoor exploration and enjoyment of the stunning natural surroundings.

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

The chart illustrates December temperature patterns in Alamos, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec636570758186848482807264
Data source: Temperature data for Alamos 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 Alamos

In Alamos, Mexico, December marks a transition from the wetter months of summer to the drier spell of the winter season. With precipitation totaling 23 mm (0.9 in), December retains a modest level of rainfall, mostly characterized by brief showers over a couple of days. Interestingly, this amount mirrors both October and November, suggesting a consistent, albeit light, moisture supply as the year ends. This pattern highlights a trend of decreasing precipitation following the heavy downpours experienced in July and August, which collectively bring in over 290 mm (11.4 in) of rain. As December approaches, the natural environment prepares for a quieter period, all while providing a gentle reminder of the vibrant rains that once fell.

December Precipitation Trends in Alamos

The chart displays monthly precipitation patterns in Alamos, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1718100031152143100234024
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Alamos

In December, Alamos, Mexico, experiences a notable increase in humidity, reaching 80%. This surge follows a gradual rise from the relatively dry months of April and May, where humidity dips to its lowest at 51% and 47% respectively. As the year progresses, humidity levels climb steadily, highlighted by the 81% peak in August and 82% in September, coinciding with the rainy season. The trend leading into December reflects a return to damp conditions, akin to the earlier months of the year, as the desert landscape transitions from the arid summer to the more humid winter months. Overall, December's humidity provides a refreshing end to the year, enveloping Alamos in a plush, atmospheric embrace.

December Average Humidity in Alamos

This chart illustrates the average monthly humidity levels in Alamos, 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.
JanFebMarAprMayJunJulAugSepOctNovDec75%67%60%51%47%50%70%82%82%78%78%81%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Alamos

As December rolls into Alamos, Mexico, the UV Index dips to a moderate level of 5, allowing for a more comfortable outdoor experience. This marks a clear trend from the extreme levels seen during the sweltering summer months, where the Index peaked at 12 from April through August, resulting in burn times of just 10 minutes. Throughout the year, Alamos experiences notable fluctuations in UV exposure; the very high rate of 10 in March gives way to a more manageable environment by December, where visitors can safely enjoy up to 30 minutes of sun. As the cooler months approach, the need for sun protection decreases, yet it’s still advisable to stay mindful of the moderate UV levels this month. For more detailed information on UV trends throughout the year, check out Alamos UV Index.

Maximum UV Index Levels in Alamos for December

The chart shows the monthly maximum UV Index (UVI) for Alamos 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.
JanFebMarAprMayJunJulAugSepOctNovDec6810121212121211975
Data source: Alamos 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 Alamos

December in Alamos, Mexico, offers a delightful blend of sunshine, with 262 hours of bright daylight illuminating the landscape. As the year draws to a close, this month showcases a slight dip in sunshine compared to the bustling days of summer, yet it maintains a warm glow, reminiscent of the glorious 366 hours experienced in May. The trend through the months reveals a gradual increase in sunlight from the dimmer days of January and November, culminating in the sunny peak of April and May, before transitioning into December’s cozy embrace of daylight. This rich tapestry of light reflects the unique charm of Alamos, inviting visitors to bask in its invigorating warmth as the year ends.

Monthly Sunshine Duration in Alamos: December Highlighted

The December sunshine duration represents the total number of hours Alamos 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.
JanFebMarAprMayJunJulAugSepOctNovDec219h250h294h325h366h353h324h311h292h302h265h262h
Data source: Alamos December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Alamos During December

In Alamos, Mexico, December brings a 52% chance of sunny weather, making it one of the cooler months yet still offering glimpses of sunshine. Analyzing the trends throughout the year, it’s evident that the likelihood of sunny days fluctuates significantly, peaking at 82% in October and dipping as low as 36% in August. Interestingly, December sits just below the year's average, hinting at a transition from the dry to the wetter months. As we move toward the end of the year, December maintains a reasonable chance for sun, providing a charming backdrop for holiday festivities amidst the delightful winter climate.

Percentage of Sunny Days in December in Alamos

The chart illustrates the percentage of sunny days in Alamos 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 Alamos experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec72%59%67%72%79%62%37%36%56%82%69%52%
Data source: Alamos December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Alamos in December

In December, Alamos, Mexico experiences a return to 10 hours of daylight, mirroring the shorter days of January and November. This pattern highlights a subtle yet consistent trend through the winter months, as daylight gradually wanes after a peak of 13 hours in the summer. From May to August, the days are longest and brightest, providing an inviting atmosphere for outdoor activities. As the year progresses, the daylight duration decreases steadily until winter, reminding residents of the seasonal transition. This cyclical rhythm in daylight not only enhances the charm of the region but also marks the end of one year and the quiet anticipation of the next.

Average Daylight Hours in Alamos for December

The chart illustrates the variation in daylight duration in Alamos throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 38m11h 14m12h 1m12h 48m13h 28m13h 48m13h 37m13h 2m12h 16m11h 28m10h 47m10h 27m
Data source: Alamos daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Alamos

As December settles in Alamos, Mexico, the average wind speed drops to 1.5 m/s (3 mph), mirroring the subdued breezes of the preceding months. This gentle gustiness is part of a broader trend observed throughout the year: a gradual increase in wind speeds during the spring, peaking in April at 2.0 m/s (5 mph), followed by a noticeable decline as summer transitions to fall. By the end of the year, as the air cools, the winds remain soft and consistent, creating a tranquil ambiance ideal for reflective walks under the starry desert skies. With each descending month, the rhythm of nature seems to echo the quiet charm of Alamos, wrapping the town in a serene embrace as it approaches the New Year.

Average December Wind Speed in Alamos

The chart displays monthly wind speed patterns in Alamos, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1.71.71.92.02.01.91.21.21.21.51.51.5 m/s
Data source: Alamos December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Alamos Compares to Other Months

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

In December, the weather features a minimum temperature of 2°C (36°F) and an average of 18°C (64°F), with maximums reaching 32°C (90°F). The month sees relatively moderate precipitation levels of 23 mm (0.9 in) over just two days, along with a higher humidity of 80%.

In contrast, January is slightly cooler, with minimum temperatures dropping to 1°C (34°F) and an average of 17°C (63°F). The maximum temperature can rise to 34°C (93°F), making it the warmest month. Rainfall decreases slightly to 17 mm (0.7 in), also occurring over two days, and humidity drops to a more comfortable 74%. For more detailed information, you can check Alamos weather in January.

In December, the weather features a pleasant average temperature of 18°C (64°F) and peaks at a comfortable 32°C (90°F), with a minimum of 2°C (36°F). The month sees relatively low precipitation, totaling 23 mm (0.9 in) over just 2 days, accompanied by higher humidity at 80%. Conversely, February experiences slightly cooler mornings with a minimum of 1°C (34°F), yet the average remains similar at 18°C (65°F), while the maximum climbs to 35°C (95°F). Precipitation decreases to 18 mm (0.7 in) and occurs on about 3 days, with humidity dropping to 67%. For more detailed insights into February's weather, you can check Alamos weather in February.

In December, the weather tends to be pleasantly warm, with average temperatures ranging from a cool 18°C (64°F) to a maximum of 32°C (90°F), while minimum temperatures dip to around 2°C (36°F). The month typically sees about 23 mm (0.9 in) of precipitation over two days and maintains a relatively high humidity level of 80%.

In contrast, March experiences slightly warmer conditions, with average temperatures climbing to 21°C (70°F) and highs reaching up to 36°C (98°F). The minimum temperature is also higher at 5°C (41°F), and March is notably drier, with only 10 mm (0.4 in) of precipitation expected over just one day and lower humidity at 60%. For more detailed information on weather patterns in March, you can check Alamos weather in March.

In December, the weather is quite moderate, with temperatures ranging from a minimum of 2°C (36°F) to a maximum of 32°C (90°F), and an average of 18°C (64°F). There's a chance of light precipitation, with about 23 mm (0.9 in) recorded over two days, and the humidity is relatively high at 80%. In contrast, April brings much warmer conditions, with temperatures reaching a minimum of 8°C (48°F) and soaring to a maximum of 39°C (103°F), averaging a comfortable 24°C (76°F). Notably, April is dry, with no recorded precipitation and just 51% humidity. For more details about the April weather in Alamos, you can visit Alamos weather in April.

December and May present contrasting weather patterns. In December, temperatures range from a minimum of 2°C (36°F) to a maximum of 32°C (90°F), with an average of 18°C (64°F) and 23 mm of precipitation over two days, resulting in a high humidity level of 80%. In stark contrast, May enjoys much warmer conditions, with a minimum temperature of 13°C (55°F) and soaring to a maximum of 43°C (109°F), averaging 27°C (81°F). Notably, May experiences no precipitation, making for dry conditions and a lower humidity level of 47%. For more detailed information, you can refer to Alamos weather in May.

December and June present strikingly different weather patterns. In December, temperatures range from a mild 2°C (36°F) at night to a comfortable average of 18°C (64°F) during the day, peaking at 32°C (90°F). The month experiences 23 mm (0.9 in) of precipitation over just two days, with humidity levels at a high 80%. In contrast, June boasts a much warmer climate, with temperatures starting at a minimum of 17°C (63°F) and soaring to an average of 30°C (86°F), reaching up to a scorching maximum of 44°C (111°F). Despite slightly higher precipitation at 31 mm (1.2 in) over the same two days, June enjoys lower humidity at 50%. For a detailed look at June's weather, check out Alamos weather in June.

The weather in December contrasts significantly with that of July in Alamos. In December, temperatures range from a cool minimum of 2°C (36°F) to an average of 18°C (64°F), with a maximum of 32°C (90°F). Precipitation is minimal, averaging just 23 mm (0.9 in) over two days, and humidity is relatively high at 80%. In contrast, July experiences much warmer temperatures, with a minimum of 22°C (71°F), an average of 29°C (85°F), and highs soaring up to 41°C (105°F). The month is quite rainy, with 152 mm (6.0 in) of precipitation spread out over 20 days, and humidity is slightly lower at 70%. For more detailed information, check out Alamos weather in July.

December and August present contrasting weather patterns in Alamos. In December, temperatures range from a mild 2°C (36°F) at night to a warm 32°C (90°F) during the day, with an average temperature of 18°C (64°F). The month sees minimal precipitation, only about 23 mm (0.9 in) over just 2 days, and humidity levels are relatively high at 80%. In contrast, August experiences significantly warmer conditions, with temperatures ranging from a minimum of 21°C (71°F) to a scorching maximum of 40°C (105°F) and an average of 29°C (84°F). This month is much wetter, receiving around 142 mm (5.6 in) of rain over 17 days, and maintains a similar humidity level of 81%. For more details, check out Alamos weather in August.

December and September present quite contrasting weather patterns. In December, temperatures generally range from a cool 2°C (36°F) at night to a warm 32°C (90°F) during the day, with an average of 18°C (64°F). Precipitation is relatively low, with only 23 mm (0.9 in) over two days and humidity around 80%. In contrast, September features much warmer conditions, with nighttime lows of 17°C (63°F) and daytime highs soaring up to 40°C (104°F), averaging 28°C (82°F). This month experiences considerable rainfall, with up to 100 mm (3.9 in) falling across 14 days, while humidity remains similarly high at 82%. For more detailed information about September weather, visit Alamos weather in September.

In comparing the weather between December and October, December is notably cooler, with average temperatures ranging from a minimum of 2°C (36°F) to a maximum of 32°C (90°F). In contrast, October experiences much warmer conditions, with temperatures between 8°C (46°F) and 41°C (105°F). Both months receive a similar amount of precipitation, at 23 mm (0.9 in) over two days, although December's humidity is slightly higher at 80% compared to October's 78%. For a more detailed look at October's climate, you can check Alamos weather in October.

In December, the weather shows a notable cooling trend compared to November, with minimum temperatures dropping to 2°C (36°F) and an average of 18°C (64°F). While November experiences a warmer minimum of 7°C (45°F) and a higher average temperature of 22°C (72°F), it also peaks at a maximum of 39°C (102°F), significantly warmer than December's maximum of 32°C (90°F). Precipitation decreases in December to 23 mm (0.9 in) over the same number of days as November, which sees a higher total of 40 mm (1.6 in). Humidity remains relatively consistent, with December at 80% and November slightly lower at 78%. For more details on November’s climate, check out Alamos weather in November.

Compare Alamos's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Alamos

December in Alamos brings a notable shift in weather compared to the warmer months, with cooler temperatures creating a refreshing climate for locals and visitors alike. While the average temperature hovers around a comfortable 18°C (64°F), the days can peak at a maximum of 32°C (90°F), offering ample sunshine paired with a soft touch of winter chill in the evenings. With only two days of rainfall totalling 23 mm (0.9 in), the month remains relatively dry, allowing for plenty of outdoor activities. The elevated humidity level of 80% adds a certain crispness to the air, making December a delightful time to explore the beautiful landscapes of Alamos. For a deeper understanding of what to expect throughout the year, be sure to check out Alamos Climate.