December Weather in La Union, Mexico

Last updated: April 22, 2025

In December, La Union, Mexico, offers a pleasant climate ideal for exploring the region. With maximum temperatures reaching 33°C (92°F) and an average of 24°C (76°F), visitors can enjoy warm days, while the evenings cool down to a comfortable 17°C (63°F). Rainfall is minimal, with only 4 mm (0.2 in) recorded across just one day, ensuring plenty of sunshine for outdoor activities. The humidity levels around 70% provide a tropical feel, complementing the area’s scenic beauty and vibrant culture, making December a delightful month to experience La Union.

December Temperature in La Union

In December, La Union, Mexico, experiences mild and pleasant temperatures, marking a transition towards cooler winter months. With minimums hovering around 17°C (63°F) and averages at a comfortable 24°C (76°F), the climate remains inviting. The maximums can reach up to 33°C (92°F), reflecting a lingering warmth typical of the region. This month stands out as the temperatures begin to cool from the sweltering heights of summer, while still offering warm days that entice visitors to enjoy outdoor activities. Overall, December presents a perfect blend of warmth and mildness, making it an attractive time to visit.

December Weather in La Union: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in La Union, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec757576767880818079797876
Data source: Temperature data for La Union 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 La Union

In December, La Union experiences a notable decrease in precipitation, with only 4 mm (0.2 in) of rain recorded over just 1 day. This marks a shift from the heavier downpours seen earlier in the year, particularly during the peak months of August and September, when precipitation amounts reached 215 mm (8.5 in) and 253 mm (10.0 in) respectively. Following the intense rainy season, November saw a slight lull with 42 mm (1.7 in) over 7 days, setting the stage for December's dry trend. As the year closes, the transition to drier conditions is evident, reflecting La Union's distinct seasonal climate patterns.

December Precipitation Trends in La Union

The chart displays monthly precipitation patterns in La Union, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4300719397215253218424
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in La Union

In La Union, Mexico, December marks a transition in humidity levels, with an average of 70% that reflects the onset of milder winter conditions. This is a slight dip from the more humid summer months, peaking at 79% in August, but still higher than the drier winter months of January and February, which hover around 66% and 64%, respectively. The trend shows a steady increase in humidity leading up to the summer, peaking mid-year, before gradually easing as the year draws to a close. As December settles in, the climate becomes a comfortable blend of moisture, making it an appealing time to enjoy the region's natural beauty without the oppressive humidity of the hotter months.

December Average Humidity in La Union

This chart illustrates the average monthly humidity levels in La Union, 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.
JanFebMarAprMayJunJulAugSepOctNovDec66%64%63%69%73%76%78%79%78%75%72%70%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in La Union

In December, La Union, Mexico experiences a UV Index of 8 classified as very high, with a burn time of just 15 minutes for unprotected skin. This is a slight decrease from the highs of previous months, as the region exhibits a pattern of extreme UV exposure peaking from February to September, reaching an intensity of 14. Interestingly, the tail end of the year shows a trend of reduced UV levels, aligning with the transition into cooler months. However, even in December, the threat of sunburn remains significant, reminding visitors to stay vigilant. For a deeper dive into UV safety and trends throughout the year, visit La Union UV Index.

Maximum UV Index Levels in La Union for December

The chart shows the monthly maximum UV Index (UVI) for La Union 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.
JanFebMarAprMayJunJulAugSepOctNovDec911131413141412141198
Data source: La Union 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 La Union

La Union, Mexico, basks in an abundance of sunshine throughout the year, with December showcasing a delightful 292 hours of bright days. As the year winds down, residents and visitors alike enjoy a warm glow that follows a lively increase from 240 hours in January. This upward trend reaches its peak in May with 335 hours, suggesting an inviting atmosphere perfect for exploring stunning beaches and vibrant local culture. While the sun dips slightly during the summer months, averaging around 280 hours in August, December's sunshine remains robust, hinting at a splendid winter escape. With averages consistently above 270 hours from October to December, La Union proves to be a charming destination for those seeking sun-soaked adventures even in the festive season.

Monthly Sunshine Duration in La Union: December Highlighted

The December sunshine duration represents the total number of hours La Union 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.
JanFebMarAprMayJunJulAugSepOctNovDec240h277h319h322h335h288h310h280h269h276h281h292h
Data source: La Union December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in La Union During December

In La Union, Mexico, December presents a pleasantly sunny outlook, with a 71% chance of sun. This marks a notable increase compared to the relatively dreary summer months, where cloud cover reigns supreme, dipping as low as 13% in June and 14% from July to September. As the year progresses into the late fall, the chances of sunshine begin to climb, culminating in December's inviting climate. This trend suggests that while winter approaches, the sun still makes a significant appearance, creating an ideal setting for outdoor activities and festive celebrations. With this rise from November's 58%, December stands out as a month where sunshine plays a key role, making it an appealing time for visitors seeking warmth and light.

Percentage of Sunny Days in December in La Union

The chart illustrates the percentage of sunny days in La Union 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 La Union experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec61%83%81%79%62%13%18%14%14%32%58%71%
Data source: La Union December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in La Union in December

Throughout the year, La Union, Mexico, enjoys a captivating rhythm of daylight that brings life to its vibrant culture and stunning landscapes. Beginning with a steady 11 hours of daylight in the cooler months of January and February, the days gradually stretch as spring approaches; March through May sees an increase to 12 hours of sunlight, perfect for exploring the region's natural beauty. As summer arrives in June and July, daylight peaks at 13 hours, inviting longer days filled with adventures under the sun. However, come August, the daylight begins to recede, returning to 12 hours before tapering back to 11 hours in the autumn and winter months of October, November, and December. This annual cycle perfectly encapsulates La Union's dynamic interplay of light, making it a destination for sun-seekers year-round.

Average Daylight Hours in La Union for December

The chart illustrates the variation in daylight duration in La Union throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec11h 10m11h 33m12h 2m12h 33m12h 58m13h 10m13h 3m12h 41m12h 12m11h 42m11h 16m11h 3m
Data source: La Union daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in La Union

In December, La Union experiences a gentle average wind speed of 1.6 m/s (4 mph), mirroring the calmness noted in both October and November. As the year draws to a close, the winds show a gradual decline from their spring peak of 2.2 m/s (5 mph) in April and May, gradually settling into the softer breezes characteristic of the holiday season. This trend reflects a serene atmosphere, with winter's embrace that contrasts with the more vibrant gusts of earlier months. As the winds turn milder, December invites relaxation, making it an ideal time to bask in La Union's coastal charm.

Average December Wind Speed in La Union

The chart displays monthly wind speed patterns in La Union, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1.81.92.02.22.22.01.61.71.51.61.61.6 m/s
Data source: La Union December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in La Union Compares to Other Months

The weather in La Union 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 La Union and find detailed weather information for every month.

In December, the weather features a minimum temperature of 17°C (63°F) and an average of 24°C (76°F), reaching a maximum of 33°C (92°F), with a total precipitation of 4 mm (0.2 in) reported over about 1 day. The humidity averages around 70%. In contrast, January sees slightly cooler temperatures, with a minimum of 15°C (60°F), while still maintaining the same average and maximum temperatures as December. Interestingly, January boasts no recorded days of precipitation and a lower humidity level of 66%. For more detailed insights, visit La Union weather in January.

In December, the weather is warm, with temperatures ranging from a minimum of 17°C (63°F) to a maximum of 33°C (92°F), and an average temperature of 24°C (76°F). There is minimal precipitation, with an average of just 4 mm (0.2 in) over one day, and humidity levels are relatively high at 70%.

In contrast, February experiences slightly cooler temperatures, with a minimum of 14°C (58°F) and a maximum of 34°C (94°F), while still maintaining an average of 24°C (76°F). February also boasts lower precipitation at only 2 mm (0.1 in) and no rainy days, along with decreased humidity at 64%. For more details on the weather during this time, check out La Union weather in February.

In comparing the weather between December and March, both months exhibit warm temperatures with similar average highs around 24°C (76°F). December experiences a wider range with minimum temperatures at 17°C (63°F) and maximums reaching 33°C (92°F), while March showcases temperatures slightly cooler at a minimum of 16°C (61°F) and a peak of 34°C (94°F). Notably, December has a bit of precipitation, averaging 4 mm over a single rainy day, whereas March remains completely dry with no recorded rainfall. Additionally, humidity levels are higher in December at 70%, compared to March's lower 63%. For more detailed insights on March weather, you can visit La Union weather in March.

In December, temperatures in La Union range from a minimum of 17°C (63°F) to a maximum of 33°C (92°F), with an average of 24°C (76°F). The month is relatively dry, with only 4 mm (0.2 in) of precipitation over just one day and humidity levels around 70%. In contrast, April experiences slightly warmer temperatures, with a minimum of 16°C (61°F) and reaching up to 35°C (95°F), averaging 25°C (77°F). Remarkably, April has no recorded precipitation, offering a completely dry month with humidity at a comparable 69%. For more details, check La Union weather in April.

In December, the weather is warm but slightly cooler, with temperatures ranging from a minimum of 17°C (63°F) to a maximum of 33°C (92°F) and an average of 24°C (76°F). The month experiences minimal precipitation of just 4 mm (0.2 in), falling on one day, along with a humidity level of 70%. In contrast, May brings slightly warmer temperatures, with a minimum of 18°C (64°F), an average of 26°C (79°F), and a maximum of 35°C (96°F). Additionally, May sees a bit more precipitation at 7 mm (0.3 in), also over one day, and a touch higher humidity at 73%. For more details, you can check La Union weather in May.

In December, the weather features a warm climate with temperatures ranging from a minimum of 17°C (63°F) to a maximum of 33°C (92°F). The month experiences minimal precipitation, with only 4 mm (0.2 in) over just one rainy day, creating a relatively dry atmosphere and 70% humidity. In contrast, June sees slightly warmer temperatures, where the minimum is 19°C (67°F) and the maximum can reach 35°C (95°F). However, June is characterized by significantly higher rainfall, totaling 193 mm (7.6 in) spread across 17 days, resulting in increased humidity at 76%. For a detailed overview of the June weather patterns, you can check out La Union weather in June.

December and July present contrasting weather experiences. In December, temperatures range from a mild minimum of 17°C (63°F) to a pleasant maximum of 33°C (92°F), with an average of 24°C (76°F) and relatively low precipitation of just 4 mm (0.2 in) over 1 day, resulting in a humidity level of 70%. In stark contrast, July sees higher temperatures, with a minimum of 23°C (73°F) and a maximum of 34°C (94°F), averaging around 27°C (81°F). However, July experiences significantly greater precipitation, with 97 mm (3.8 in) falling over 17 days, leading to higher humidity levels at 78%. For more specific details on the weather during this month, you can refer to La Union weather in July.

When comparing the weather in December and August, notable differences emerge. December features a milder temperature range, with a minimum of 17°C (63°F) and a maximum of 33°C (92°F), while August tends to be warmer with minimum temperatures starting at 22°C (72°F) and reaching up to 34°C (94°F). Precipitation also varies drastically; December experiences only 4 mm (0.2 in) of rain over just one day, whereas August receives a substantial 215 mm (8.5 in) over 23 days, leading to a much higher humidity level of 79%. For more detailed insights on August weather, visit La Union weather in August.

In comparing the weather of December and September, significant differences emerge. December typically experiences milder temperatures, with a minimum of 17°C (63°F), averaging around 24°C (76°F), and peaking at 33°C (92°F). Precipitation is minimal during this month, averaging just 4 mm (0.2 in) over only one day, along with a humidity level of 70%. In contrast, September is considerably wetter and warmer, characterized by a higher minimum temperature of 22°C (72°F), an average of 26°C (79°F), and a maximum of 34°C (94°F). The month sees substantial rainfall, totaling 253 mm (10.0 in) spread over 23 days, and exhibits higher humidity at 78%. For more details on the rainfall and general conditions during September, you can refer to La Union weather in September.

In comparing the weather between December and October, December tends to be slightly cooler, with average temperatures ranging from a minimum of 17°C (63°F) to a maximum of 33°C (92°F), while October experiences higher minimum temperatures of 21°C (71°F) and an average of 26°C (79°F). October is significantly wetter, receiving 218 mm (8.6 in) of precipitation over 24 days, in stark contrast to December's mere 4 mm (0.2 in) over just one day. Humidity levels are also a tad lower in December at 70%, compared to October's 75%. For more detailed information, you can check La Union weather in October.

In December, the weather remains relatively warm, with temperatures ranging from a minimum of 17°C (63°F) to a maximum of 33°C (92°F) and an average temperature of 24°C (76°F). Precipitation is minimal in December, totaling only 4 mm (0.2 in) over just one day, with humidity levels at 70%. In contrast, November experiences slightly warmer temperatures, with an average of 25°C (78°F) and a maximum of 34°C (93°F). However, the month brings significantly more rainfall, with 42 mm (1.7 in) spread across seven days and slightly higher humidity at 72%. For a closer look at the November weather, check out La Union weather in November.

Compare La Union's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in La Union

December in La Union offers a delightful reprieve from the year’s sweltering heat, with a mild average temperature of 24°C (76°F), creating an inviting atmosphere for both residents and visitors. Compared to the hot summer months, December boasts significantly cooler temperatures, making outdoor activities even more enjoyable. With only 4 mm of precipitation and just one rainy day, this month stands out as a drier time of the year, allowing for plenty of sunshine and blue skies. The 70% humidity adds a touch of warmth without overwhelming, creating a comfortable setting. For a deeper dive into what you can expect from La Union's climate throughout the year, visit La Union Climate.