December Weather in Heroica Guaymas, Mexico

Last updated: April 22, 2025

In December, Heroica Guaymas, Mexico, offers a delightful climate marked by a maximum temperature of 29°C (85°F) and an average of 18°C (66°F), making it a perfect escape for those seeking mild warmth. The month experiences a low minimum temperature of 7°C (45°F) during the cooler nights, creating a pleasant contrast. With only 8 mm (0.3 in) of precipitation over one day, rain is a rare event, allowing for ample sunshine. The humidity level stands at 72%, providing a fresh feel to the coastal air. This combination of warmth and minimal rain makes December an ideal time to explore the vibrant beauty and charm of Guaymas.

December Temperature in Heroica Guaymas

In Heroica Guaymas, December marks a gentle transition into winter, boasting a delightful climate that's perfect for outdoor adventures. With minimum temperatures dipping to a brisk 7°C (45°F) at night, the days are pleasantly warm, averaging around 18°C (66°F). The highs reach up to 29°C (85°F), offering plenty of sunny hours to explore the stunning beaches and vibrant local culture. This month continues the trend of cooler temperatures established in November, making it an ideal time for travelers seeking a escape from the chillier climates elsewhere. Overall, December provides a refreshing blend of mild weather, setting the stage for a picturesque holiday season by the sea.

December Weather in Heroica Guaymas: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Heroica Guaymas, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec636468747986899087817365
Data source: Temperature data for Heroica 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 Heroica Guaymas

In Heroica Guaymas, Mexico, December marks the beginning of a subtle shift in precipitation patterns, with the month receiving approximately 8 mm (0.3 in) of rain over just one day. This is consistent with the drier spell that characterizes the region from April through May, where rainfall is almost nonexistent. Interestingly, this modest December rainfall is a prelude to the wetter months that follow, as the year transitions into the summer, when August and September typically see the peak in precipitation. Overall, the data suggests a gradual build-up of moisture through the fall, culminating in the rainy season, while December serves as a gentle reminder of the seasonal changes to come.

December Precipitation Trends in Heroica Guaymas

The chart displays monthly precipitation patterns in Heroica 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.
JanFebMarAprMayJunJulAugSepOctNovDec128120057195417108
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Heroica Guaymas

In Heroica Guaymas, Mexico, the humidity levels demonstrate a clear seasonal pattern throughout the year. Starting at a moderate 71% in January, there’s a gradual decline until April, where conditions are at their driest with 52% humidity. As the year progresses into the warmer summer months, humidity begins to rise again, peaking at 76% in September. Interestingly, December maintains a consistent level of 72%, mirroring the moisture levels seen in the preceding months of October and November. This indicates that while there’s a noticeable dip in humidity during the spring, the late fall and winter months create a humid backdrop that remains relatively stable, ensuring the balmy charm of this coastal town.

December Average Humidity in Heroica Guaymas

This chart illustrates the average monthly humidity levels in Heroica 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.
JanFebMarAprMayJunJulAugSepOctNovDec71%66%59%52%51%51%61%73%76%72%72%72%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Heroica Guaymas

In Heroica Guaymas, Mexico, the UV Index experiences notable fluctuations throughout the year, highlighting the region's intense sun exposure. Starting with a moderate UV Index of 5 in January, residents enjoy a generous 30 minutes of burn time. However, as spring approaches, the index climbs sharply, peaking at an extreme 12 from May to July, where just 10 minutes in the sun can lead to significant burns. As autumn settles in, the index gradually decreases, offering a more manageable 6 in November, before returning to a moderate 5 in December, allowing for a more leisurely 30 minutes of sun exposure. This trend underscores the importance of sun safety especially during the peak summer months. For detailed information, explore the Heroica Guaymas UV Index.

Maximum UV Index Levels in Heroica Guaymas for December

The chart shows the monthly maximum UV Index (UVI) for Heroica 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.
JanFebMarAprMayJunJulAugSepOctNovDec589111212121111965
Data source: Heroica 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 Heroica Guaymas

In Heroica Guaymas, Mexico, December greets visitors with a gentle embrace of 262 hours of sunshine, wrapping up the year with a warm glow. This month's sunshine marks a slight dip from November's 263 hours, but it's consistent with a downward trend as the year progresses. From a vibrant peak of 366 hours in May, the hours gradually taper off, showcasing a delightful seasonal dance where the sun's intensity wanes but still generously blesses the region. As the days grow shorter, the sun's presence remains a cherished companion, providing ample opportunity to bask in the beauty of this coastal paradise even as the calendar turns to winter.

Monthly Sunshine Duration in Heroica Guaymas: December Highlighted

The December sunshine duration represents the total number of hours Heroica 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.
JanFebMarAprMayJunJulAugSepOctNovDec217h251h298h328h366h363h352h337h310h301h263h262h
Data source: Heroica Guaymas December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Heroica Guaymas During December

As December rolls into Heroica Guaymas, Mexico, the chances of sunny weather dip to 57%, a noticeable shift from the more consistently bright skies of the earlier months. This decline follows a trend seen as we transition from the robust sunshine of October, which boasts a striking 90% chance of sun, to the cooler patience of November with a 71% likelihood. While December may present a mix of sun and clouds, it still offers a friendly reprieve compared to the grayer summer months like July and August. Travelers can expect pleasant, albeit occasionally overcast days, perfect for enjoying the milder weather and vibrant local culture.

Percentage of Sunny Days in December in Heroica Guaymas

The chart illustrates the percentage of sunny days in Heroica 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 Heroica Guaymas experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec75%65%71%74%82%82%44%57%69%90%71%57%
Data source: Heroica Guaymas December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Heroica Guaymas in December

In Heroica Guaymas, Mexico, the daylight duration exhibits a captivating rhythm throughout the year. Starting from a modest 10 hours in January, the days gradually stretch, reaching 13 hours by May and maintaining this generous span until August. As summer wanes, daylight gradually diminishes, returning to 12 hours in September and subsequently reducing to 10 hours again by December. This cyclical pattern not only marks the transition of seasons but also paints a vibrant picture of how nature's clock influences daily life in this coastal gem. As the year closes, the city's short winter days invite cozy gatherings, while the longer summer hours celebrate the joy of outdoor living.

Average Daylight Hours in Heroica Guaymas for December

The chart illustrates the variation in daylight duration in Heroica 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 35m11h 12m12h 1m12h 50m13h 32m13h 52m13h 41m13h 4m12h 16m11h 27m10h 44m10h 23m
Data source: Heroica Guaymas daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Heroica Guaymas

As December arrives in Heroica Guaymas, Mexico, the winds begin to whisper a gentle chill, with an average speed of 3.1 m/s (7 mph). This marks a slight uptick from the calmer November winds, which recorded a low of 2.5 m/s (6 mph). The winter months often bring a subtle shift in the breeze, with December's winds continuing a trend of modest fluctuation that characterizes the region throughout the year. Notably, the summer months usually see stronger gusts, peaking in June and March at 4.0 m/s (9 mph) and 4.1 m/s (9 mph) respectively. Overall, December's winds contribute to a serene atmosphere, providing just enough movement to remind residents and visitors alike of the changing seasons in this stunning coastal locale.

Average December Wind Speed in Heroica Guaymas

The chart displays monthly wind speed patterns in Heroica 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.
JanFebMarAprMayJunJulAugSepOctNovDec3.63.44.13.73.14.03.83.63.03.52.53.1 m/s
Data source: Heroica Guaymas December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Heroica Guaymas Compares to Other Months

The weather in Heroica 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 Heroica Guaymas and find detailed weather information for every month.

In December, the weather in Heroica Guaymas features a comfortable temperature range, with a minimum of 7°C (45°F) and a maximum of 29°C (85°F), while the average temperature settles at 18°C (66°F). The month sees minimal precipitation, totaling only 8 mm (0.3 in) over a single day, and maintains a humidity level of 72%.

By January, the temperatures dip slightly, with a minimum of 7°C (45°F), an average of 17°C (64°F), and a maximum of 28°C (83°F). Precipitation increases marginally to 12 mm (0.5 in), also spread over just one day, and humidity remains relatively stable at 71%. For a detailed comparison of the weather, you can check out Heroica Guaymas weather in January.

December and February share quite similar weather patterns, but there are a few notable differences. In December, temperatures range from a minimum of 7°C (45°F) to a maximum of 29°C (85°F), with an average of around 18°C (66°F) and humidity levels at 72%. February, on the other hand, mirrors December's temperature range closely, with a minimum of 7°C (45°F) and slightly warmer maximum at 30°C (85°F), while the average drops just 1°C to 18°C (65°F) and humidity decreases to 66%. Both months experience minimal precipitation, with only 8 mm (0.3 in) falling across just one day. For more details, check out Heroica Guaymas weather in February.

In comparing the weather between December and March, December tends to have a slightly cooler range of temperatures, with a minimum of 7°C (45°F) and a maximum of 29°C (85°F), while March has a higher minimum of 10°C (50°F) and a maximum of 31°C (89°F). Precipitation in December is lower at 8 mm (0.3 in) compared to March's 12 mm (0.5 in), although both months only experience about one day of rain. Interestingly, December's humidity is higher at 72%, which can make the air feel a bit more uncomfortable than the drier conditions in March, where humidity drops to 58%. For more detailed insights, you can check Heroica Guaymas weather in March.

In December, the weather in Heroica Guaymas is characterized by milder temperatures, with nighttime lows around 7°C (45°F) and daytime averages reaching up to 18°C (66°F), peaking at a maximum of 29°C (85°F). The month sees a minimal amount of rainfall, with only 8 mm (0.3 in) over just one day, resulting in a relatively high humidity level of 72%. In contrast, April brings warmer conditions, with temperatures ranging from a minimum of 13°C (56°F) to an average of 23°C (74°F) and soaring highs of 35°C (96°F). Notably, April is dry, experiencing no precipitation, and features significantly lower humidity at 52%. For more detailed information on the weather in April, visit Heroica Guaymas weather in April.

In December, the weather in Heroica Guaymas is mild, with temperatures ranging from a minimum of 7°C (45°F) to a maximum of 29°C (85°F). The average temperature hovers around 18°C (66°F), with a humidity level of 72% and light precipitation of about 8 mm over just one day. In contrast, May brings much hotter conditions, featuring temperatures that range from a minimum of 17°C (62°F) to a scorching maximum of 38°C (100°F), with an average of 26°C (79°F). Remarkably, May boasts no recorded precipitation and a significantly lower humidity level of 51%. For more detailed weather information, you can check out Heroica Guaymas weather in May.

December and June exhibit striking contrasts in weather patterns. In December, temperatures range from a mild minimum of 7°C (45°F) to a maximum of 29°C (85°F), with an average of 18°C (66°F). The month sees a relatively low amount of precipitation at 8 mm (0.3 in) over just one day, contributing to a humidity level of 72%. In comparison, June experiences a significantly warmer climate, with temperatures soaring from a minimum of 21°C (69°F) to a high of 38°C (101°F) and an average of 30°C (86°F). This month boasts almost no rainfall, with only 5 mm (0.2 in) recorded and no rainy days, resulting in a lower humidity of 51%. For more detailed information about the weather specifics in June, you can check Heroica Guaymas weather in June.

In December, the weather in Heroica Guaymas features a milder temperature range, with minimums around 7°C (45°F) and maximums reaching 29°C (85°F), making the average a comfortable 18°C (66°F). The humidity is relatively high at 72%, although precipitation is minimal, with only 8 mm (0.3 in) expected over typically just 1 day. In contrast, July brings much hotter conditions, with temperatures soaring from a low of 26°C (79°F) to a sweltering high of 39°C (103°F), averaging 32°C (90°F). Despite a slightly higher precipitation level of 7 mm (0.3 in) over 2 days, the humidity drops to 60%, making for a more oppressive heat. For more detailed insights on July weather, visit Heroica Guaymas weather in July.

December and August present strikingly different weather patterns. In December, temperatures range from a mild 7°C (45°F) at night to a warm 29°C (85°F) during the day, making the overall average a comfortable 18°C (66°F). The month is relatively dry, with only 8 mm (0.3 in) of precipitation over a single day and humidity hovering around 72%. In contrast, August boasts significantly warmer conditions, with minimum temperatures starting at 26°C (79°F) and peaking at 38°C (102°F), leading to an average of 32°C (90°F). This summer month sees increased rainfall of 19 mm (0.7 in) spread over four days, while humidity remains consistent at 73%. For a more detailed look at August weather, check out Heroica Guaymas weather in August.

In comparing the weather between December and September, it’s clear that September is significantly warmer, with average temperatures reaching a balmy 30°C (87°F) and maximums soaring to 42°C (107°F). In contrast, December offers milder conditions, where average temperatures are a comfortable 18°C (66°F) with maximums peaking at 29°C (85°F). Additionally, September experiences much higher precipitation, averaging 53 mm (2.1 in) over 6 days, compared to December's meager 8 mm (0.3 in) over just 1 day. Humidity levels are also slightly higher in September at 76%, compared to 72% in December. For more details about the weather during this month, check out Heroica Guaymas weather in September.

In December, the weather in Heroica Guaymas is milder compared to October, with temperatures ranging from a minimum of 7°C (45°F) to a maximum of 29°C (85°F), resulting in an average of 18°C (66°F). In contrast, October experiences significantly warmer temperatures, with minimums of 15°C (59°F) and maximums reaching 38°C (101°F), averaging 27°C (82°F). While both months have similar low precipitation levels, October sees about double the rain at 17 mm (0.7 in) despite having only one rainy day, whereas December receives just 8 mm (0.3 in). Interestingly, both months maintain the same humidity level of 72%. For more specific details about October weather, visit Heroica Guaymas weather in October.

In December, the weather shows a notable drop in temperatures compared to November, with December's average temperature at 18°C (66°F) compared to November's warmer 23°C (73°F). The maximum temperatures in December reach up to 29°C (85°F), significantly lower than November's high of 35°C (96°F). Both months experience relatively low precipitation, with December receiving 8 mm (0.3 in) and November slightly more at 10 mm (0.4 in), although both months have only one day of rain. Humidity remains consistent throughout, sitting at 72% in both months. For more detailed weather information, refer to Heroica Guaymas weather in November.

Compare Heroica Guaymas's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Heroica Guaymas

As December arrives in Heroica Guaymas, the weather brings a delightful change from the sweltering summer months, offering a more moderate climate that is perfect for outdoor activities. With milder temperatures averaging around 18°C (66°F) and a comfortable maximum of 29°C (85°F), visitors can enjoy the pleasant warmth of the sun without the overpowering heat. The month stands out with minimal rainfall, only experiencing a single day of precipitation and contributing to a low humidity level of 72%, making it an ideal time for exploration. This refreshing December weather invites you to experience the unique charm of the region. For a more in-depth look at yearly conditions, check out Heroica Guaymas Climate.