December Weather in Santa Maria de Guaymas, Mexico

Last updated: April 22, 2025

December in Santa Maria de Guaymas, Mexico is characterized by mild temperatures and a pleasant climate. The maximum temperature reaches a warm 32°C (90°F), while the average hovers around a comfortable 18°C (64°F), providing ideal conditions for outdoor activities. Nights can be cooler, with lows dropping to 2°C (37°F). Expect minimal rainfall with an average precipitation of 12 mm (0.5 in) spread across just two days, making December perfect for enjoying the stunning landscapes. With humidity levels at 81%, this month offers a refreshing coastal atmosphere, inviting visitors to explore the beauty of this vibrant region.

December Temperature in Santa Maria de Guaymas

In December, Santa Maria de Guaymas experiences a delightful shift in temperatures as winter settles in. The month begins with cool minimums around 2°C (37°F), inviting a crispness to the air, while the average climbs to a comfortable 18°C (64°F). As the days progress, temperatures can peak at a refreshing 32°C (90°F), marking a notable contrast to the chilling nights. This transitional climate showcases a gradual decline from the warmer months of autumn, setting the stage for a pleasant, mild winter. Overall, December offers a harmonious balance of coolness and warmth, making it an inviting time to enjoy the natural beauty of this coastal haven.

December Weather in Santa Maria de Guaymas: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Santa Maria de Guaymas, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec636570778188909086817364
Data source: Temperature data for Santa Maria de Guaymas 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 Santa Maria de Guaymas

December in Santa Maria de Guaymas, Mexico, sees a modest precipitation total of 12 mm (0.5 in), typically falling over two days. This marks a slight decline from the more rainfall-rich months of September and August, which often bring heavier showers. After the dry spell of late spring and summer, December offers a refreshing reprieve with just enough rain to nourish the landscape, yet it remains well below the peak levels experienced earlier in the year. Overall, this gentle precipitation hints at the seasonal transition, as the region prepares for drier months ahead, creating a cyclical rhythm that defines Guaymas' climate.

December Precipitation Trends in Santa Maria de Guaymas

The chart displays monthly precipitation patterns in Santa Maria de Guaymas, 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.
JanFebMarAprMayJunJulAugSepOctNovDec131114009304062201712
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Santa Maria de Guaymas

In December, Santa Maria de Guaymas experiences a notable rise in humidity, reaching 81%, which marks a significant increase compared to the preceding month of November at 75%. This late-year uptick reflects a trend where humidity tends to be highest during the winter months, particularly from August through December, creating a contrast to the dry heat of the earlier months—from May to June, when humidity dips to around 33%. As the year closes, the increasing moisture in the air culminates in a refreshing yet muggy atmosphere, preparing the region for the wetter months ahead.

December Average Humidity in Santa Maria de Guaymas

This chart illustrates the average monthly humidity levels in Santa Maria de Guaymas, 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.
JanFebMarAprMayJunJulAugSepOctNovDec76%68%56%42%36%33%47%71%80%73%75%81%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Santa Maria de Guaymas

In Santa Maria de Guaymas, Mexico, the UV Index shows a noticeable trend throughout the year, peaking during the summer months. As winter fades, December welcomes a moderate UV Index of 5, allowing for a more leisurely 30 minutes of sun exposure before risking a burn. Contrastingly, the months leading up to December display a dramatic escalation, with values soaring to an extreme 12 in April through July, necessitating protective measures after just 10 minutes in the sun. This pattern underscores the importance of adapting sun safety practices as the year progresses. As January rolls back around, the UV Index dips again to 5, paralleling the gentle sun of December. For more detailed information, explore the Santa Maria de Guaymas UV Index.

Maximum UV Index Levels in Santa Maria de Guaymas for December

The chart shows the monthly maximum UV Index (UVI) for Santa Maria de Guaymas 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.
JanFebMarAprMayJunJulAugSepOctNovDec5810121212121111975
Data source: Santa Maria de Guaymas 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 Santa Maria de Guaymas

In Santa Maria de Guaymas, Mexico, December invites a gentle transition into the winter with 260 hours of sunshine, a beautiful prelude to the new year. As the year progresses, we observe a delightful crescendo of sunlight peaking in May with an impressive 368 hours. This trend highlights the region's warm, sun-soaked climate, perfect for those seeking to bask in balmy temperatures. Following May, the sunlight remains abundant through the summer months, only to taper off slightly as autumn descends. With December's bright yet mellow days, it's an ideal time to enjoy the scenic beauty and vibrant culture of this coastal paradise before the longer sunshine returns in the spring.

Monthly Sunshine Duration in Santa Maria de Guaymas: December Highlighted

The December sunshine duration represents the total number of hours Santa Maria de Guaymas 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.
JanFebMarAprMayJunJulAugSepOctNovDec215h248h297h330h368h361h344h329h305h299h262h260h
Data source: Santa Maria de Guaymas December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Santa Maria de Guaymas During December

In Santa Maria de Guaymas, Mexico, December brings a 57% chance of sunny weather, making it one of the cooler months, yet still offering a fair opportunity for sun. This percentage reflects a noticeable decline from the vibrant 90% in October, as the region transitions into winter. However, it's interesting to note that December’s sunshine probability aligns closely with the mid-autumn months, such as November at 71% and September at 65%. Despite being lower than the peak summer months, December’s sunny forecast suggests a delightful mix of mild temperatures and occasional sunshine, perfect for those looking to escape colder climates during the holiday season.

Percentage of Sunny Days in December in Santa Maria de Guaymas

The chart illustrates the percentage of sunny days in Santa Maria de Guaymas 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 Santa Maria de Guaymas experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec74%64%71%75%83%80%39%52%65%90%71%57%
Data source: Santa Maria de Guaymas December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Santa Maria de Guaymas in December

In Santa Maria de Guaymas, Mexico, daylight duration experiences a gentle ebb and flow throughout the year. As December arrives, the days shrink to 10 hours of sunlight, mirroring the darkness of both January and November. This month marks the end of a gradual decline from the summer months, where daylight peaked at 13 hours from May to August. The trend reveals a harmonious rhythm of nature, with longer days in the warmer months transitioning smoothly into shorter, cozier winter days. As each season unfolds, residents and visitors alike embrace the unique beauty of light and shadow in this picturesque coastal town.

Average Daylight Hours in Santa Maria de Guaymas for December

The chart illustrates the variation in daylight duration in Santa Maria de Guaymas throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 33m11h 11m12h12h 51m13h 33m13h 53m13h 42m13h 5m12h 16m11h 26m10h 43m10h 21m
Data source: Santa Maria de Guaymas daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Santa Maria de Guaymas

As December rolls into Santa Maria de Guaymas, the breeze softens, with an average wind speed of 2.0 m/s (4 mph). This marks a slight decline from the more robust winds of fall, reflecting a trend toward calmer conditions as the year draws to a close. Notably, the wind speeds this month are consistent with those in November, both experiencing gentle breezes that invite leisurely strolls by the waterfront. In contrast, the spring and early summer months boast livelier winds, peaking at 2.9 m/s (6 mph) in April and June, creating a dynamic atmosphere perfect for active outdoor pursuits. Thus, December's tranquil winds provide a serene backdrop, wonderfully balancing the year's more vigorous gusts.

Average December Wind Speed in Santa Maria de Guaymas

The chart displays monthly wind speed patterns in Santa Maria de Guaymas, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.42.32.82.92.62.92.22.31.92.31.82.0 m/s
Data source: Santa Maria de Guaymas December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Santa Maria de Guaymas Compares to Other Months

The weather in Santa Maria de Guaymas 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 Santa Maria de Guaymas and find detailed weather information for every month.

In December, the weather in Santa Maria de Guaymas is characterized by a minimum temperature of 2°C (37°F) and an average of 18°C (64°F), with highs reaching up to 32°C (90°F). The month sees around 12 mm (0.5 in) of precipitation spread over 2 days, accompanied by a humidity level of 81%.

Transitioning into January, the temperatures slightly increase, with a minimum of 3°C (38°F) and an average of 17°C (63°F), while the maximum temperature can reach 33°C (92°F). Precipitation remains similar at 13 mm (0.5 in), but the rain is limited to just 1 day, which contributes to a lower humidity level of 76%. For more details, you can check the Santa Maria de Guaymas weather in January.

In December, temperatures in Santa Maria de Guaymas range from a minimum of 2°C (37°F) to a maximum of 32°C (90°F), with an average of 18°C (64°F). The month sees light precipitation of about 12 mm (0.5 in) over two days and experiences a high level of humidity at 81%. In contrast, February features slightly warmer conditions with a minimum of 3°C (38°F) and a maximum of 34°C (94°F). The month has a similar average temperature of 18°C (65°F), but with less rain at 11 mm (0.4 in) over just one day and lower humidity at 68%. For more detailed weather insights, you can visit Santa Maria de Guaymas weather in February.

In December, temperatures range from a minimum of 2°C (37°F) to a maximum of 32°C (90°F), with an average temperature of 18°C (64°F). The month sees about 12 mm (0.5 in) of precipitation over two days and boasts high humidity levels at 81%. In contrast, March experiences slightly warmer conditions, with a minimum temperature of 7°C (44°F) and a maximum reaching 38°C (101°F), resulting in a higher average of 21°C (70°F). Precipitation increases slightly to 14 mm (0.5 in) but occurs over just one day, and humidity drops significantly to 56%. For a more detailed look at March weather, you can visit Santa Maria de Guaymas weather in March.

December and April exhibit contrasting weather patterns. In December, temperatures range from a minimum of 2°C (37°F) to a maximum of 32°C (90°F), with an average temperature of 18°C (64°F). The month sees light rainfall with about 12 mm (0.5 in) over just 2 days, contributing to a comparatively high humidity of 81%. In contrast, April experiences much warmer temperatures, with a minimum of 11°C (52°F) and soaring up to a maximum of 42°C (107°F), leading to an average temperature of 25°C (77°F). Notably, April is dry, recording no precipitation and significantly lower humidity at 42%. For more specific information, you can check out Santa Maria de Guaymas weather in April.

When comparing the weather in December and May, it's clear that May is significantly warmer and drier. In December, temperatures range from a cool 2°C (37°F) at night to a comfortable 32°C (90°F) during the day, accompanied by around 12 mm (0.5 in) of precipitation over two days and high humidity at 81%. In contrast, May boasts much warmer temperatures, with minimums starting at 14°C (57°F) and soaring to a scorching 42°C (109°F), while enjoying dry conditions with no rainfall and a much lower humidity rate of 36%. For more detailed insights on May weather, you can check Santa Maria de Guaymas weather in May.

In December, the weather features a broad temperature range, with minimums around 2°C (37°F) and maximums reaching up to 32°C (90°F), showcasing a mild average of 18°C (64°F). The month experiences relatively high humidity at 81% and receives about 12 mm (0.5 in) of precipitation over two days. In contrast, June is significantly warmer, with minimum temperatures starting at 16°C (61°F) and soaring to a maximum of 44°C (112°F), averaging a sweltering 31°C (88°F). Notably, June boasts much drier conditions, with only 9 mm (0.4 in) of precipitation and no rainy days, accompanied by a much lower humidity level of 33%. For a detailed look at June weather in this region, check out Santa Maria de Guaymas weather in June.

When comparing the weather in December and July, one can observe significant differences in temperature and humidity levels. December features a much cooler climate, with minimum temperatures around 2°C (37°F) and an average of 18°C (64°F), while July experiences high heat, with minimums of 24°C (76°F) and averages reaching 32°C (91°F). Furthermore, July not only boasts higher maximum temperatures, reaching up to 45°C (113°F), but also sees more precipitation over more days, totaling 30 mm (1.2 in) across 8 days, compared to December's 12 mm (0.5 in) over just 2 days. Humidity levels also differ greatly, with December's relative humidity at a high 81%, in stark contrast to July's much lower 47%. For further details on July's climate, check out Santa Maria de Guaymas weather in July.

When comparing the weather in December and August, there are noticeable contrasts in temperature and precipitation. December experiences milder conditions with minimum temperatures reaching 2°C (37°F) and average highs of 18°C (64°F), offering a comfortable climate for outdoor activities. In contrast, August is much hotter, with minimum temperatures of 24°C (75°F) and average highs soaring to 32°C (90°F), peaking at an extreme 43°C (110°F). Precipitation is also more prevalent in August, with 40 mm (1.6 in) falling over 8 days, compared to December's modest 12 mm (0.5 in) over just 2 days. Humidity levels are slightly higher in December at 81%, which adds to the chill, while August maintains lower humidity at 71%, despite the heat. For a more detailed examination of the weather during this summer month, check Santa Maria de Guaymas weather in August.

The weather in December and September presents a striking contrast. In December, temperatures range from a minimum of 2°C (37°F) to a maximum of 32°C (90°F), with an average of 18°C (64°F). The month is relatively dry, receiving only 12 mm (0.5 inches) of precipitation over just 2 days and experiencing a humidity level of 81%. Conversely, September is much hotter, with temperatures ranging from a minimum of 17°C (62°F) to a sweltering maximum of 45°C (113°F) and an average of 30°C (87°F). This month sees a significant amount of rain, totaling 62 mm (2.4 inches) over 8 days, while humidity hovers around 80%. For a more detailed overview of September's weather, you can check Santa Maria de Guaymas weather in September.

In December, the temperatures in Santa Maria de Guaymas drop significantly, with a minimum of 2°C (37°F) and an average high of 18°C (64°F), compared to October's more temperate range, where minimums start at 11°C (52°F) and peak at an impressive 42°C (108°F). While December experiences less precipitation, at 12 mm (0.5 in) over two days, October sees slightly more rainfall at 19 mm (0.8 in) during the same number of days. Additionally, humidity is higher in December at 81%, in contrast to October's 73%, contributing to a generally drier and cooler feel in the air. For a detailed look at what to expect in October, visit Santa Maria de Guaymas weather in October.

In comparing December and November weather in Santa Maria de Guaymas, December features a cooler temperature range with minimums at 2°C (37°F) and maximums reaching 32°C (90°F), unlike November, which has a higher minimum of 8°C (47°F) and can peak at a scorching 41°C (105°F). Precipitation is a bit lower in December, with only 12 mm (0.5 in) over 2 days, compared to November's 17 mm (0.7 in) during the same number of days. Additionally, humidity levels are slightly higher in December at 81%, while November sees a comfortable 75%. For more detailed insights, you can check Santa Maria de Guaymas weather in November.

Compare Santa Maria de Guaymas's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Santa Maria de Guaymas

As December rolls in, Santa Maria de Guaymas experiences a delightful transformation in weather, marking a departure from the hotter months. With an average temperature of 18°C, the days are pleasantly warm, while evenings invite cozy layers against the cooler night air. This month also sees a significant dip in humidity, providing a refreshing break from the sticky summer feel. Additionally, rain is minimal, with only a couple of days experiencing light showers. For a deeper insight into monthly variations, explore Santa Maria de Guaymas Climate.