January Weather in La Union, Mexico

Last updated: April 22, 2025

In La Union, Mexico, January presents a diverse climate experience, marked by a maximum temperature that can soar to 34°C (94°F), while the average hovers around a comfortable 19°C (67°F). Nights can be quite cool, with temperatures dipping to a minimum of 6°C (43°F). This month typically sees 49 mm (1.9 in) of precipitation spread across 7 days, contributing to a notably high humidity level of 88%. Visitors can expect a blend of warm days and cooler, refreshing evenings, making January an intriguing time to explore this vibrant region.

January Temperature in La Union

In La Union, Mexico, January brings a refreshing start to the year, with temperatures ranging from a cool 6°C (43°F) at night to a comfortable 19°C (67°F) on average during the day, peaking at a warm 34°C (94°F). As the month progresses into February, you’ll notice a slight increase in warmth, with minimum temperatures rising to 8°C (46°F) and daytime averages reaching 21°C (70°F). This trend of increasing warmth continues, transitioning into spring as March and April see more notable hikes, with daytime highs soaring to 38°C (101°F) and 41°C (107°F), respectively. By the time summer rolls in by May, temperatures stabilize around a balmy average of 28°C (83°F), while maximum values hover near 40°C (105°F). Overall, January serves as the foundation for the warming trend that defines La Union's climate, setting the stage for the hotter months ahead.

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

The chart illustrates January 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.
JanFebMarAprMayJunJulAugSepOctNovDec677074798383838381787268
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.

January Precipitation in La Union

In January, La Union, Mexico experiences a moderate start to the year with 49 mm (1.9 in) of rainfall over approximately 7 days. This precipitation lays the groundwork for a gradual increase in rain throughout the early months. By February, the rains taper off to 27 mm (1.1 in), but they soon pick up again in March as the region prepares for the wetter months ahead, with April seeing a rise to 63 mm (2.5 in). The pattern reflects a transition as precipitation peaks in the summer, emphasizing the region's shift from its milder winter rains to the more sustained downpours of the following months. This trend not only showcases the seasonal variability in La Union’s climate but also highlights the importance of January’s precipitation in setting the tone for the wetter months to come.

January Precipitation Trends in La Union

The chart displays monthly precipitation patterns in La Union, with values for each month alongside January's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec492740631392001231521891966318
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in La Union

In January, La Union, Mexico, experiences a high humidity level of 88%, setting the stage for a cozy yet slightly damp start to the year. As the months progress into February and March, humidity gradually decreases to 86% and 83%, respectively. This subtle decline continues through April and May, where levels stabilize around 80% to 82%. However, a marked drop occurs in the summer months, with July and August enjoying lower humidity at 72% and 74%, presenting a more comfortable atmosphere. The humidity begins to rise again in September, returning to 84%, and climbs dramatically toward the year's end, peaking at a steep 92% in October. With November and December maintaining similar levels, at 91%, it’s clear that the latter part of the year embraces a much wetter climate, contrasting with the drier summer months. This trend illustrates La Union's distinct seasonal humidity patterns, showcasing drastically varying conditions throughout the year.

January Average Humidity in La Union

This chart illustrates the average monthly humidity levels in La Union, with January's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how January's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec89%86%83%80%82%79%72%74%84%92%91%91%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in La Union

In January, La Union, Mexico, experiences a UV Index of 7, categorized as high, signaling a burn time of just 25 minutes without adequate protection. This marks the beginning of a notable upward trend as the UV Index escalates to 10 in February and peaks at 13 during the summer months, demanding vigilant sun safety practices with burn times dropping to just 10 minutes. As the year progresses, the UV Index remains predominantly in the very high to extreme categories from March to August, emphasizing the need for protective measures like sunscreen and clothing. Interestingly, September begins a gradual decline, returning to a high category in January and December with the UV Index dropping back to 7. For detailed insights on the UV Index throughout the year, visit La Union UV Index.

Maximum UV Index Levels in La Union for January

The chart shows the monthly maximum UV Index (UVI) for La Union in January, 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.
JanFebMarAprMayJunJulAugSepOctNovDec710111212131312121087
Data source: La Union January 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.

January Sunshine in La Union

January in La Union, Mexico, welcomes you with 169 hours of sunshine, setting the stage for a bright start to the year. As the winter months progress into February, the sun shines a bit brighter with 205 hours, hinting at the warmth to come. By March, residents and visitors can bask in 264 hours of sunshine, a clear signal that spring is on its way. The luminosity peaks in the late spring and summer months, with May boasting an impressive 314 hours. The sun continues to shine brightly through the summer, reaching a delightful 325 hours in July, before beginning a gradual decline toward the fall. As the year ends, the charm of La Union remains, with December still enjoying 231 hours of sunlight. This trend reveals that while January may be a gentle introduction, the months that follow offer a gradually intensifying embrace of sunshine, making La Union a radiant destination throughout the year.

Monthly Sunshine Duration in La Union: January Highlighted

The January sunshine duration represents the total number of hours La Union experiences direct sunlight during the month of January, excluding cloudy or obstructed periods. This chart compares the sunshine duration of January with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec169h205h264h270h314h304h325h318h282h269h240h231h
Data source: La Union January Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in La Union During January

January in La Union, Mexico, greets visitors with a modest 18% chance of sunny weather, making it one of the more overcast months of the year. This low probability stands in stark contrast to February, where the chances nearly double to 37%, signaling the gradual onset of sunnier days. As winter transitions into spring, the likelihood of sunshine continues to rise, peaking at 48% in March before experiencing a mild dip in April and May. Overall, while January may lack the bright skies that come later in the season, it sets the stage for a shift toward more favorable weather in the months ahead.

Percentage of Sunny Days in January in La Union

The chart illustrates the percentage of sunny days in La Union throughout the year, with January 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.
JanFebMarAprMayJunJulAugSepOctNovDec18%37%48%38%39%15%35%45%23%34%45%49%
Data source: La Union January chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in La Union in January

In La Union, Mexico, January marks the beginning of a gradual transition in daylight duration, offering 11 hours of sunlight that echoes into February. As spring approaches, daylight begins to lengthen noticeably throughout March and April, reaching up to 12 hours. This trend continues into the warmer months of May, June, and July, where the sun graces the region with its maximum duration of 13 hours daily. As summer fades and autumn approaches, daylight starts to recede once again, bringing 12 hours in August and September before tapering down to 11 hours in October and November. By December, the sun's presence diminishes to 10 hours, signaling the close of the year. This cyclical pattern reflects the region's beautiful blend of consistent sunshine and seasonal variation, making every month a unique experience for residents and visitors alike.

Average Daylight Hours in La Union for January

The chart illustrates the variation in daylight duration in La Union throughout the year, with January highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec11h11h 26m12h 2m12h 38m13h 8m13h 22m13h 14m12h 48m12h 13m11h 37m11h 6m10h 51m
Data source: La Union daylight hours, calculated by summing the hours between sunrise and sunset for each day.

January Winds in La Union

In January, La Union, Mexico, experiences a mild average wind speed of 2.0 m/s (5 mph), setting the tone for a consistent winter breeze that carries into February. This steady wind, which remains unchanged through the month, gradually increases to 2.2 m/s (5 mph) by March before reaching its peak in April at 2.4 m/s (5 mph). As spring progresses, the winds begin to moderate slightly, dipping back to 2.2 m/s in May and further declining over the summer months, dropping to a gentle 1.8 m/s (4 mph) in June and July. The trend hints at a typical coastal pattern where summer calms the winds, which fluctuate slightly until a subtle rise is noted again in late summer and fall. Overall, January's breezy charm heralds a seasonal shift that ebbs and flows into the coming months, captivating both residents and visitors alike.

Average January Wind Speed in La Union

The chart displays monthly wind speed patterns in La Union, with values for each month shown alongside January's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how January's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec2.0 m/s2.02.22.42.21.81.82.01.71.81.91.8
Data source: La Union January wind data, generated using information from the Copernicus Climate Change Service.

How January 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 January'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 January, the weather features a minimum temperature of 6°C (43°F) and an average of 19°C (67°F), peaking at 34°C (94°F). The precipitation is relatively higher at 49 mm (1.9 in) over 7 days, contributing to a humidity level of 88%. In contrast, February sees a slight increase in minimum temperature to 8°C (46°F) and an average of 21°C (70°F), with the maximum reaching 35°C (95°F). Precipitation decreases to 27 mm (1.1 in) while maintaining the same number of rainy days, and humidity drops slightly to 86%. For more specific insights, check La Union weather in February.

In January, temperatures range from a minimum of 6°C (43°F) to a maximum of 34°C (94°F), with an average of 19°C (67°F). The month sees approximately 49 mm (1.9 in) of precipitation over 7 days, coupled with high humidity at 88%. In contrast, March experiences warmer conditions, with temperatures ranging from a minimum of 10°C (51°F) to a maximum of 38°C (101°F) and an average of 23°C (74°F). Precipitation decreases slightly to 40 mm (1.6 in) across 8 days, and humidity is somewhat lower at 83%. For more specifics, you can explore La Union weather in March.

In January, the weather in La Union showcases a significant range in temperatures, with a minimum of 6°C (43°F) and a maximum of 34°C (94°F), leading to an average of 19°C (67°F). The humidity is quite high at 88%, and the month experiences around 49 mm (1.9 in) of precipitation over 7 days. In contrast, April presents a warmer climate, with temperatures ranging from a minimum of 15°C (58°F) to a scorching maximum of 41°C (107°F), averaging 26°C (79°F). April also sees slightly more precipitation at 63 mm (2.5 in) over 8 days, while humidity dips to 80%. For a detailed look at the April weather, check out La Union weather in April.

In January, the weather is relatively mild, with temperatures ranging from a minimum of 6°C (43°F) to a maximum of 34°C (94°F), averaging around 19°C (67°F). The month experiences about 49 mm (1.9 in) of precipitation over approximately 7 days, coupled with high humidity at 88%. In contrast, May brings significantly warmer weather, with temperatures starting at a minimum of 19°C (66°F) and soaring to a maximum of 40°C (105°F), yielding an average of 28°C (83°F). Precipitation also increases in May to 138 mm (5.5 in) spread over 14 days, and humidity remains slightly lower at 82%. For a closer look at May weather specifics, you can check La Union weather in May.

In January, temperatures in La Union range from a minimum of 6°C (43°F) to a maximum of 34°C (94°F), with an average of 19°C (67°F), and the humidity is quite high at 88%. The month experiences around 49 mm (1.9 in) of precipitation over about 7 days. In stark contrast, June sees significantly warmer weather, with temperatures ranging from a minimum of 20°C (69°F) to a maximum of 38°C (101°F), averaging 28°C (83°F). However, June also brings increased rain, accumulating approximately 200 mm (7.9 in) of precipitation over 21 days, while humidity is somewhat lower at 79%. For more detailed insights into La Union's weather in June, visit La Union weather in June.

In January, the weather is characterized by mild temperatures, with a minimum of 6°C (43°F), an average of 19°C (67°F), and a maximum of 34°C (94°F). Although there is some precipitation, totaling 49 mm (1.9 in) over about 7 days, the humidity remains quite high at 88%. In contrast, July brings much warmer conditions, with temperatures ranging from a minimum of 21°C (69°F) to a maximum of 37°C (98°F) and an average of 28°C (83°F). However, July experiences significantly more rainfall, accumulating 123 mm (4.8 in) across 20 days, but the overall humidity is lower at 72%. For a detailed look at July's weather, you can check La Union weather in July.

January and August present strikingly different weather conditions. In January, temperatures range from a minimum of 6°C (43°F) to a maximum of 34°C (94°F), with an average of 19°C (67°F) and high humidity at 88%. This month experiences around 49 mm (1.9 in) of precipitation over about 7 days. In contrast, August sees significantly warmer temperatures, with a minimum of 21°C (71°F) and a maximum reaching 39°C (103°F), resulting in an average temperature of 29°C (84°F). August is also wetter, with 152 mm (6.0 in) of rainfall distributed across approximately 20 days, though humidity drops to 74%. For more specific details, you can refer to La Union weather in August.

In January, the weather is characterized by milder temperatures, with daily averages ranging from a low of 6°C (43°F) to a high of 34°C (94°F), and there is comparatively less rainfall, totaling 49 mm (1.9 in) over about 7 days. In contrast, September brings warmer conditions, with temperatures soaring between a minimum of 18°C (64°F) and a maximum of 37°C (100°F), accompanied by significantly higher precipitation of 189 mm (7.4 in) spread across approximately 20 days. Additionally, while January has a higher humidity level at 88%, September's humidity remains relatively high at 84%. For more insights into the weather specifics in September, you can visit La Union weather in September.

In January, the weather is typically milder, with temperatures ranging from a minimum of 6°C (43°F) to a maximum of 34°C (94°F), and an average of 19°C (67°F). This month experiences about 49 mm (1.9 in) of precipitation over 7 days, coupled with high humidity levels at 88%. In contrast, October is generally warmer, with minimum temperatures of 15°C (60°F) and maximums reaching 37°C (99°F), averaging around 25°C (78°F). However, October also sees significantly more precipitation, totaling 196 mm (7.7 in) over 17 days, and even higher humidity at 92%. For more detailed insights into the weather conditions during this month, check out La Union weather in October.

In January, temperatures range from a minimum of 6°C (43°F) to a maximum of 34°C (94°F), with an average of 19°C (67°F). The month experiences approximately 49 mm (1.9 in) of precipitation over about seven days, coupled with a humidity level of 88%. In contrast, November presents slightly cooler temperatures, with a minimum of 4°C (39°F), an average of 22°C (72°F), and a maximum of 32°C (90°F). The precipitation increases to 63 mm (2.5 in) over nine days, and humidity is marginally higher at 91%. For more detailed information about the November weather, you can check out the following link: La Union weather in November.

In comparing the weather between January and December, January experiences slightly warmer temperatures, with an average of 19°C (67°F) compared to December's 20°C (69°F). The maximum temperature in January reaches 34°C (94°F), just above December's high of 33°C (92°F). However, January sees more precipitation, measuring 49 mm (1.9 in) over 7 days, while December only receives 18 mm (0.7 in) on 4 days. Humidity levels are also high in both months, with January at 88% and December slightly higher at 91%. This data highlights a transition into the new year with increased rainfall, making January notably wetter than December. For more details, you can check La Union weather in December.

Compare La Union's Climate with Cities Worldwide

Conclusion: What to Expect From January Weather in La Union

January in La Union is characterized by a mix of cool evenings and warm days, setting it apart from the more oppressive heat of the summer months. During this time, temperatures exhibit a pleasant average, making it ideal for outdoor activities despite occasional rainfall spread over several days. With high humidity levels, the air feels thick, but the relatively low precipitation contributes to a drier atmosphere compared to the upcoming months. The mild weather creates an inviting environment, ensuring that visitors can comfortably explore the beauty of La Union. For a deeper dive into the region's climate, check out La Union Climate.