December Weather in Sinaloa, Mexico

Last updated: April 22, 2025

December in Sinaloa, Mexico welcomes visitors with a mild and pleasant climate. Daily temperatures range from a minimum of 12°C (55°F) to a maximum of 34°C (93°F), averaging around 23°C (73°F), perfect for outdoor activities. Rainfall is minimal, with just 15 mm (0.6 in) spread over three days, allowing for ample sunshine. Despite its warmth, humidity remains notable at 76%, adding a touch of tropical allure to the cool winter nights. This blend of comfortable temperatures and low precipitation makes December an ideal time to experience the vibrant culture and stunning landscapes of Sinaloa.

December Temperature in Sinaloa

In December, Sinaloa, Mexico, experiences a mild transition into winter, with temperatures reflecting a comfortable climate perfect for outdoor activities. The month begins with a minimum temperature of 12°C (55°F), gradually warming to an average of 23°C (73°F), reaching a peak of 34°C (93°F). This slight dip in the minimum temperatures compared to the previous months indicates a seasonal shift, as November's figures saw a minimum of 14°C (57°F). Despite this change, the warmth of December makes it a delightful time to explore Sinaloa, offering a pleasant escape from colder regions. With stable temperatures and plenty of sunshine, December's climate invites both locals and visitors to savor the outdoor charm of this vibrant coastal region.

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

The chart illustrates December temperature patterns in Sinaloa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec727578818177797977767473
Data source: Temperature data for Sinaloa generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Sinaloa

In Sinaloa, Mexico, December brings a modest precipitation total of 15 mm (0.6 in), a notable decrease from the heavy rainfall experienced in the summer months. While this month sees only 3 days of rain, it serves as a gentle transition from the wetter season to the drier months ahead. The rainfall pattern starts to taper off significantly after November's 37 mm, reflecting typical seasonal shifts in climate. December's drier spell sets the stage for a drier January, as the region settles into its winter phase, highlighting a clear trend of declining precipitation as the year comes to a close.

December Precipitation Trends in Sinaloa

The chart displays monthly precipitation patterns in Sinaloa, 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.
JanFebMarAprMayJunJulAugSepOctNovDec9541297223481062121973715
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

December Humidity in Sinaloa

In December, Sinaloa experiences a humidity level of 76%, consistent with the higher moisture levels seen in the preceding months. As the year progresses from the dry season in March (59%) to the lush, humid culminating months of October (83%) and November (80%), the end of the year reflects a decline from peak humidity but still maintains a notable presence in the air. This trend showcases a distinct wet season, particularly from the summer months through the end of the year, where humidity peaks in the late summer and early fall, before stabilizing slightly in the winter. By December, residents can expect a refreshing yet humid atmosphere, typical of Sinaloa’s climate, setting the stage for a milder winter as the year draws to a close.

December Average Humidity in Sinaloa

This chart illustrates the average monthly humidity levels in Sinaloa, 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%59%57%65%66%75%82%82%83%80%76%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Sinaloa

In December, Sinaloa, Mexico, continues to experience a notable UV Index of 9, categorizing the exposure as very high. While this is a slight decrease from the previous months where the index peaked at 15 in July, the sun remains potent, requiring a burn time of just 15 minutes for protection. Observing the trend throughout the year, the UV Index spikes significantly from January to July, often reaching extreme levels between 12 and 15. Following a gradual decline in the latter months, December wraps up the year with a UV index still quite high, reminding residents and visitors alike to prioritize sun safety. For more detailed insights, check out the Sinaloa UV Index.

Maximum UV Index Levels in Sinaloa for December

The chart shows the monthly maximum UV Index (UVI) for Sinaloa 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.
JanFebMarAprMayJunJulAugSepOctNovDec10121414141415141413109
Data source: Sinaloa 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 Sinaloa

In Sinaloa, Mexico, December dazzles with an impressive 317 hours of sunshine, marking a radiant close to the year. As the festive season approaches, this month showcases a delightful trend, where sunlight gradually increases from the more temperate 253 hours in January to a peak of 326 hours in July, ensuring the region remains bright and inviting. The consistent warmth of December's sunshine reflects the climatic pattern of the months preceding it, as spring and early summer revel in abundant sunshine. This gentle glow not only enhances the holiday spirit but also serves as a perfect backdrop for exploring the vibrant culture and stunning landscapes that Sinaloa has to offer. With nearly 10 hours of sunshine daily, December proves to be a magnificent time for both relaxation and adventure in this sun-kissed paradise.

Monthly Sunshine Duration in Sinaloa: December Highlighted

The December sunshine duration represents the total number of hours Sinaloa 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.
JanFebMarAprMayJunJulAugSepOctNovDec253h287h325h314h315h274h326h312h287h291h307h317h
Data source: Sinaloa December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Sinaloa During December

As December rolls in, Sinaloa, Mexico, delights with a promising 80% chance of sunny weather, making it one of the most favorable months for sunshine compared to the months that precede it. Following the trend of increasing sun chances, December maintains a strikingly high likelihood that rivals the sunnier months of late winter and early spring. This noticeable upward shift from November’s 61% provides a cheerful outlook for those looking to escape winter's chill, offering ample opportunity to soak up the sun before the new year. With next to no signs of the infamous rainy season that looms in the summer months, December stands out as a vibrant backdrop for holiday festivities and outdoor adventures alike.

Percentage of Sunny Days in December in Sinaloa

The chart illustrates the percentage of sunny days in Sinaloa 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 Sinaloa experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec63%88%83%57%36%18%28%22%23%43%61%80%
Data source: Sinaloa December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Sinaloa in December

In Sinaloa, Mexico, the rhythm of daylight unfolds a compelling pattern throughout the year. Starting with 11 hours in January and February, sunlight gradually increases to a peak of 13 hours in June, allowing for the longest days of summer. As the months progress, daylight gently tapers off, returning to 12 hours during the comfortable months of March through July, creating a harmonious balance. As autumn sets in, the daylight decreases again, concluding the year in December with 11 hours. This cyclical dance of light not only shapes the seasons but also influences the vibrant lifestyle of Sinaloa's residents.

Average Daylight Hours in Sinaloa for December

The chart illustrates the variation in daylight duration in Sinaloa throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec11h 17m11h 37m12h 2m12h 29m12h 52m13h 2m12h 56m12h 37m12h 11m11h 44m11h 22m11h 10m
Data source: Sinaloa daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Sinaloa

As December settles in Sinaloa, Mexico, the average wind speed hovers around 1.7 m/s (4 mph), a gentle breath mirroring the close of the year. Throughout the months, a noticeable pattern emerges: after a gradual increase in early spring, wind speeds peak modestly in March before tapering off during the sultry summer months of June and August. Notably, November's winds pick up again, hinting at a shift in the seasonal breeze as winter approaches. As December arrives, the winds breathe life into the vibrant landscapes, creating a serene backdrop for festive celebrations, harmonizing with the cooler temperatures of the season.

Average December Wind Speed in Sinaloa

The chart displays monthly wind speed patterns in Sinaloa, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1.71.92.11.91.41.11.71.11.01.11.61.7 m/s
Data source: Sinaloa December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Sinaloa Compares to Other Months

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

December and January exhibit quite similar weather patterns, though there are a few notable differences. In December, temperatures range from a minimum of 12°C (55°F) to a maximum of 34°C (93°F), with an average of 23°C (73°F). The month sees about 15 mm (0.6 in) of precipitation over three days, and the humidity remains fairly high at 76%. In contrast, January experiences slightly cooler conditions, with a minimum of 11°C (52°F) and the same maximum of 34°C (93°F), along with an average temperature of 22°C (73°F). Precipitation drops to 9 mm (0.4 in) spread across two days, while humidity stays consistent at 76%. For more detailed insights on January weather, check out Sinaloa weather in January.

In December, the weather is warm and humid, with temperatures ranging from a minimum of 12°C (55°F) to a maximum of 34°C (93°F) and an average of 23°C (73°F). The month sees about 15 mm (0.6 in) of precipitation over three days, contributing to a humidity level of 76%. In contrast, February experiences slightly warmer conditions, with a minimum temperature of 13°C (55°F) and a maximum of 36°C (97°F), averaging 24°C (75°F). This month is drier, with only 5 mm (0.2 in) of precipitation occurring on just one day, and humidity drops to 68%. For more detailed insights on the weather conditions, you can check Sinaloa weather in February.

December and March showcase notable differences in weather patterns. In December, temperatures range from a minimum of 12°C (55°F) to a maximum of 34°C (93°F), with an average of 23°C (73°F). This month typically sees about 15 mm (0.6 in) of precipitation over three days, accompanied by a higher humidity level at 76%. In contrast, March is warmer, with temperatures starting at a minimum of 15°C (58°F) and reaching a peak of 38°C (100°F), averaging around 25°C (78°F). Notably, March experiences significantly less rainfall, with only 4 mm (0.2 in) recorded over zero days, and lower humidity at 59%. For more detailed information on March weather, check out Sinaloa weather in March.

In comparing December and April weather, we see notable differences in temperature and humidity levels. December experiences a milder range with minimum temperatures around 12°C (55°F) and a maximum of 34°C (93°F), averaging 23°C (73°F). In contrast, April brings warmer conditions, with minimums of 16°C (60°F) and highs reaching up to 39°C (102°F), resulting in an average of 27°C (81°F). Precipitation is relatively low in both months, with December receiving 15 mm (0.6 in) over three days, and April slightly less at 12 mm (0.5 in) over just two days. Additionally, December has higher humidity at 76%, while April is more comfortable with humidity levels at 57%. For more details, you can check Sinaloa weather in April.

December and May present contrasting weather conditions. In December, temperatures range from a mild 12°C (55°F) at night to a warm average of 23°C (73°F) during the day, peaking at a maximum of 34°C (93°F). The month experiences relatively low rainfall, with only 15 mm (0.6 in) and precipitation occurring on about three days, accompanied by a higher humidity level of 76%. In contrast, May brings warmer temperatures, with a minimum of 19°C (66°F) and an average of 27°C (81°F), reaching a scorching maximum of 39°C (102°F). However, this month sees significantly more rainfall, totaling 97 mm (3.8 in) over about 17 days, and a more comfortable humidity level of 65%. For more details, check out Sinaloa weather in May.

In December, the weather in Sinaloa is generally warm with temperatures ranging from a minimum of 12°C (55°F) to a maximum of 34°C (93°F), averaging around 23°C (73°F). This month experiences relatively low precipitation, with only 15 mm (0.6 in) falling over just three days and a humidity level of 76%. In contrast, June brings even warmer temperatures, with lows of 19°C (67°F) and maxima reaching 35°C (96°F), averaging 25°C (78°F). However, June is significantly wetter, recording an impressive 223 mm (8.8 in) of rainfall over 23 days, and the humidity levels drop to 66%. For more details, check out Sinaloa weather in June.

December and July present contrasting weather conditions in Sinaloa. In December, temperatures range from a mild minimum of 12°C (55°F) to a comfortable maximum of 34°C (93°F), with an average of 23°C (73°F). The month sees limited rainfall, with only 15 mm (0.6 in) over about three days, and a humidity level of 76%. In contrast, July experiences higher temperatures, with a minimum of 18°C (65°F) and a maximum reaching up to 38°C (100°F), averaging at 26°C (79°F). This month is also much wetter, receiving 48 mm (1.9 in) of precipitation over seven days, while maintaining a similar humidity level of 75%. For more details, check out Sinaloa weather in July.

In December, the weather is relatively mild with temperatures ranging from a minimum of 12°C (55°F) to a maximum of 34°C (93°F), and averages around 23°C (73°F). This month experiences minimal rainfall, receiving only about 15 mm (0.6 in) over just three days, alongside a humidity level of 76%. In contrast, August is significantly warmer, with temperatures ranging from a minimum of 18°C (65°F) to a sizzling maximum of 37°C (99°F), averaging 26°C (79°F). August is also much wetter, with 106 mm (4.2 in) of precipitation occurring over 15 days, and humidity levels rise slightly to 82%. For more insights, you can refer to this link: Sinaloa weather in August.

When comparing the weather in December and September, one can observe notable differences in temperature and precipitation levels. December features milder temperatures, with a minimum of 12°C (55°F) and a maximum of 34°C (93°F), leading to a comfortable average of 23°C (73°F). In contrast, September tends to be warmer with a minimum of 18°C (66°F) and a maximum of 36°C (96°F), averaging 25°C (77°F).

Moreover, September is significantly wetter, receiving 212 mm (8.4 inches) of rainfall over 21 days, while December sees only 15 mm (0.6 inches) of precipitation across just 3 days. This contributes to a slightly higher humidity level in September at 82%, compared to December's 76%. For more details on September weather, you can check out Sinaloa weather in September.

December offers milder temperatures compared to October, with a minimum of 12°C (55°F) and an average of 23°C (73°F), while October starts warmer, with a minimum of 17°C (63°F) and an average of 24°C (76°F). Notably, December experiences significantly less precipitation, with only 15 mm (0.6 in) over just 3 days, contrasting sharply with October's 197 mm (7.8 in) over 18 days. The humidity is also slightly lower in December at 76%, compared to October's 83%. For more details on October's weather, you can check this link: Sinaloa weather in October.

December weather is typically warmer than November, with average temperatures slightly lower, ranging from a minimum of 12°C (55°F) to a maximum of 34°C (93°F). In contrast, November experiences a minimum of 14°C (57°F) and the same maximum but with slightly higher average temperatures. While December sees less precipitation at 15 mm (0.6 in) over just 3 days, November is wetter, receiving 37 mm (1.5 in) across 6 days. Additionally, December has a humidity level of 76%, slightly lower than November’s 80%. For more details, you can check Sinaloa weather in November.

Compare Sinaloa's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Sinaloa

As December settles in, Sinaloa undergoes a notable transformation in its weather, offering a refreshing change from the hotter months. With average temperatures hovering around a mild 23°C and maximums reaching up to 34°C, the weather is pleasantly warm but not oppressive, making it an ideal time for outdoor activities. Unlike the rainy summer season, December sees minimal precipitation, with only a few days experiencing light showers, leading to a lower humidity level compared to the earlier months. This dry and comfortable climate allows visitors to fully enjoy all that Sinaloa has to offer. For more in-depth information about seasonal variations, visit Sinaloa Climate.