May Weather in La Union, Mexico

Last updated: April 22, 2025

In La Union, Mexico, May presents a vibrant tapestry of weather characterized by warm temperatures and considerable humidity. This month boasts maximum highs reaching 36°C (97°F) and a pleasant average of 25°C (77°F), with lows dipping to around 15°C (59°F). However, the landscape is often refreshed by significant rainfall, totaling approximately 196 mm (7.7 in) over 19 days, contributing to the area's lush greenery. With humidity levels at a notable 82%, May delivers a tropical ambiance that invites both adventure and relaxation amidst its fluctuating weather patterns.

May Temperature in La Union

In May, La Union, Mexico, experiences a notable warming trend as spring transitions toward summer. With minimum temperatures rising to 15°C (59°F), the days begin to feel consistently warmer, reaching an average of 25°C (77°F). The afternoons can get quite hot, with a peak of 36°C (97°F), making it one of the warmer months of the year. This increase in temperature compared to earlier months suggests a shift towards summer conditions, inviting locals and tourists alike to enjoy the sun-drenched beaches and vibrant surroundings. As the month progresses, the delightful warmth creates a perfect backdrop for outdoor activities, embodying the essence of life in this coastal paradise.

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

The chart illustrates May 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.
JanFebMarAprMayJunJulAugSepOctNovDec636569737777767776736864
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.

May Precipitation in La Union

In May, La Union experiences a notable increase in precipitation, accumulating 196 mm (7.7 in) over 19 days—making it one of the wettest months of the year. This uptick marks a transition into the peak rainy season, as rainfall progressively intensifies from the preceding months. When compared to April's 140 mm (5.5 in), May's precipitation showcases a significant leap, foreshadowing the forthcoming deluge of June's 290 mm (11.4 in). The pattern suggests an escalating trend, where each subsequent month brings heavier rainfall and an increasing number of wet days, cementing May as a pivotal point in La Union's climatic cycle.

May Precipitation Trends in La Union

The chart displays monthly precipitation patterns in La Union, with values for each month alongside May's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec11810815214019629025129733032916481
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in La Union

In La Union, Mexico, May brings a slight respite from the lingering humidity of the early year, with levels sitting at 82%. This is a dip from the higher percentages seen in the preceding months, particularly January's heavy 88%. As spring transitions toward summer, the humidity begins to gradually decline, moving to 80% in April before stabilizing slightly in May. Interestingly, this trend continues into June, where humidity decreases further to 79%. Yet, the humidity trends suggest that the lush environment of La Union continues to thrive, as levels will rise again in the fall months, peaking at 92% in October. This fluctuation illustrates the region's humid climate, varying significantly throughout the year while maintaining a lush and vibrant atmosphere.

May Average Humidity in La Union

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

May UV Index in La Union

As the sun reaches its zenith in La Union, Mexico, May marks a pivotal moment in the UV Index, soaring to 13 with an extreme exposure category that demands caution. In this month, the burn time is a mere 10 minutes, reflecting the increasing intensity of sunlight that characterizes the early summer months. This trend of escalating UV levels continues further into June and July, where the UV Index stabilizes at 13. Comparatively, earlier months like January and February see lower indices of 8 and 10, indicating a steady climb towards the peak of UV radiation by late spring. For anyone planning outdoor activities, it’s crucial to stay informed about UV exposure to ensure safety under the sun—check out the detailed insights at La Union UV Index.

Maximum UV Index Levels in La Union for May

The chart shows the monthly maximum UV Index (UVI) for La Union in May, 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.
JanFebMarAprMayJunJulAugSepOctNovDec810111213131312121197
Data source: La Union May 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.

May Sunshine in La Union

May shines remarkably bright in La Union, Mexico, boasting an impressive 313 hours of sunshine—a delightful peak in the annual cycle. As spring gives way to early summer, the trend of increasing sunshine hours continues, building from 195 hours in January to a radiant 287 hours in April. This upward trajectory is a tantalizing invitation for those seeking warmth and outdoor adventures, with May leading into the sun-soaked months of June and July, which also enjoy abundant sunshine. With every passing month, La Union transforms into a sunny paradise, making late spring the perfect time for visitors to bask in its radiant glow.

Monthly Sunshine Duration in La Union: May Highlighted

The May sunshine duration represents the total number of hours La Union experiences direct sunlight during the month of May, excluding cloudy or obstructed periods. This chart compares the sunshine duration of May with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec195h234h282h287h313h292h320h309h280h273h251h258h
Data source: La Union May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in La Union During May

In La Union, Mexico, the likelihood of sunny weather in May is a moderate 32%, which reflects a slight decline from the sunnier months of March and April, where chances soared to 41% and 35% respectively. This gentle dip hints at a transition into the warmer months, as the region shifts into summer, evidenced by the subsequent months of June and July exhibiting much lower probabilities of sun. Interestingly, while February boasts a 29% chance of sunshine, it is the end of the year that truly shines, with December reaching a striking 51%. Thus, May offers a pleasant mix of sunny days, perfect for enjoying the fading spring warmth before the summer heat sets in.

Percentage of Sunny Days in May in La Union

The chart illustrates the percentage of sunny days in La Union throughout the year, with May 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.
JanFebMarAprMayJunJulAugSepOctNovDec24%29%41%35%32%12%22%31%19%32%33%51%
Data source: La Union May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in La Union in May

In La Union, Mexico, the duration of daylight shows a fascinating transition throughout the year. Starting with a consistent 11 hours of daylight in the early months of January and February, the days gradually lengthen as spring unfolds, reaching 12 hours in March and April. May marks a turning point, where daylight extends to 13 hours, a duration that remains steady through June and July, offering ample time for outdoor activities and exploration. As summer wanes, daylight begins to taper off, with 12 hours in August and September, before returning to 11 hours in the closing months of the year. This rhythmic cycle of daylight not only highlights the seasonal shifts but also invites residents and visitors alike to fully embrace the vibrant energy of La Union during its sunniest months.

Average Daylight Hours in La Union for May

The chart illustrates the variation in daylight duration in La Union throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec11h 2m11h 28m12h 2m12h 36m13h 5m13h 19m13h 11m12h 46m12h 13m11h 38m11h 9m10h 55m
Data source: La Union daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in La Union

In La Union, Mexico, May greets visitors with a gentle breeze, featuring an average wind speed of 1.5 m/s (approximately 3 mph). This consistent wind flow continues the trend established in April, providing a tranquil atmosphere perfect for relaxation and outdoor activities. As the season progresses into June and July, wind speeds slightly dip back to 1.2 m/s, reflecting a seasonal pattern where the winds are most favorable during the spring months. Overall, May encapsulates a delightful blend of light winds and pleasant weather, making it an ideal time to experience the vibrant landscapes and sun-soaked shores of this coastal paradise.

Average May Wind Speed in La Union

The chart displays monthly wind speed patterns in La Union, with values for each month shown alongside May's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how May's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec1.21.41.51.51.5 m/s1.21.21.31.21.21.31.3
Data source: La Union May wind data, generated using information from the Copernicus Climate Change Service.

How May 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 May'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 May, the weather is distinctly warmer, with temperatures ranging from a minimum of 15°C (59°F) to a maximum of 36°C (97°F), whereas January experiences cooler temperatures, with a minimum of 6°C (43°F) and a maximum of 31°C (88°F). May also sees higher average temperatures of around 25°C (77°F) compared to January's average of 17°C (63°F). Precipitation in May is more significant, totaling 196 mm (7.7 in) over 19 days, while January has lower rainfall at 118 mm (4.6 in) across 16 days. Furthermore, the humidity levels are slightly lower in May at 82%, compared to 88% in January. For more detailed information, you can refer to La Union weather in January.

May and February present contrasting weather conditions, each with its own unique characteristics. In May, temperatures range from a minimum of 15°C (59°F) to a maximum of 36°C (97°F), with an average of 25°C (77°F). The month experiences significant rainfall, totaling 196 mm (7.7 in) over approximately 19 days, leading to a high humidity level of 82%. In contrast, February features cooler temperatures with a minimum of 5°C (41°F) and a maximum of 33°C (92°F), averaging 19°C (66°F). It experiences less precipitation, amounting to 108 mm (4.3 in) across 15 days, and similarly high humidity at 86%. For more detailed information on February weather, you can refer to La Union weather in February.

In comparing the weather of May and March, May tends to be significantly warmer, with average temperatures reaching 25°C (77°F) compared to March's 20°C (69°F). The maximum temperature in May can soar up to 36°C (97°F), while in March it peaks at 33°C (92°F). Additionally, May experiences higher precipitation, totaling 196 mm (7.7 in) over 19 days, compared to March's 152 mm (6.0 in) over 18 days. Interestingly, both months have similar humidity levels, with May at 82% and March at 83%. For a closer look at the conditions in March, you can check out La Union weather in March.

In comparing the weather between April and May, we observe that May tends to be warmer, with average temperatures reaching 25°C (77°F) compared to April's 23°C (74°F). While both months experience high temperatures, May slightly outstrips April with a maximum of 36°C (97°F) versus April's 35°C (96°F). Moreover, May sees increased precipitation, totaling 196 mm (7.7 in) over 19 days, compared to April's 140 mm (5.5 in) over 13 days. Humidity remains relatively high in both months, with May at 82% and April at 80%. For detailed insights on April's weather, you can visit La Union weather in April.

In comparing the weather between May and June, both months display similar average temperatures, with May experiencing a minimum of 15°C (59°F) and a maximum of 36°C (97°F), while June sees slightly higher minimums at 17°C (63°F) and a maximum of 35°C (95°F). However, June tends to be wetter than May, receiving 290 mm (11.4 in) of precipitation over 23 days compared to May’s 196 mm (7.7 in) over 19 days. Humidity levels also remain comparable, with May slightly higher at 82% compared to June’s 79%. For a more detailed look at June's weather specifics, you can visit La Union weather in June.

In May, temperatures range from a minimum of 15°C (59°F) to a maximum of 36°C (97°F), with an average of 25°C (77°F). The month is characterized by high precipitation, totaling 196 mm (7.7 in) over 19 days and a humidity level of 82%. In contrast, July showcases a slightly warmer minimum temperature of 18°C (65°F) while maintaining the same average temperature of 25°C (77°F). However, it experiences a higher precipitation level at 251 mm (9.9 in) across 28 days, with a comparatively lower humidity of 72%. For more details, you can check La Union weather in July.

In comparing the weather of May and August, May typically features warmer temperatures with a minimum of 15°C and a maximum reaching up to 36°C, while August sees slightly cooler temperatures, with minimums of 17°C and maximums peaking at 32°C. Both months share an average temperature of 25°C (77°F), but May experiences significantly higher humidity levels at 82%, compared to August's 74%. Precipitation also varies, with May receiving 196 mm over 19 days, whereas August records a higher total of 297 mm across 27 days. For more specific details regarding August weather, you can visit La Union weather in August.

May and September offer distinct weather characteristics, with noticeable differences in temperature and precipitation. In May, temperatures range from a minimum of 15°C (59°F) to a maximum of 36°C (97°F), with an average of 25°C (77°F). The month also experiences significant rainfall, totaling 196 mm (7.7 inches) over approximately 19 days, and maintains a high humidity level of 82%. In contrast, September sees slightly cooler temperatures, with a minimum of 15°C (60°F), an average of 24°C (76°F), and a maximum of 34°C (93°F). However, it is also wetter, recording 330 mm (13.0 inches) of precipitation across around 24 days and a humidity of 84%. For more detailed insights into September weather, you can check La Union weather in September.

May and October exhibit distinct weather patterns, reflecting the transition from spring to fall. In May, temperatures range from a minimum of 15°C (59°F) to a maximum of 36°C (97°F), averaging around 25°C (77°F). While the month sees considerable warmth, it also experiences significant rainfall, with 196 mm (7.7 in) of precipitation over 19 days and humidity levels at 82%. In contrast, October features slightly cooler temperatures, with a minimum of 14°C (57°F), an average of 23°C (73°F), and a maximum of 33°C (92°F). However, October is notably wetter, recording 329 mm (13.0 in) of precipitation, also over 19 days, and with higher humidity at 92%. For more details on this month’s climatic conditions, you can check La Union weather in October.

May and November present striking contrasts in weather patterns. In May, temperatures range from a minimum of 15°C (59°F) to a scorching maximum of 36°C (97°F), with an average temperature of 25°C (77°F). The month is also characterized by high humidity at 82% and significant rainfall, totaling 196 mm (7.7 in) over 19 days. In contrast, November offers cooler weather with minimum temperatures dropping to 4°C (40°F) and a maximum of 30°C (87°F), averaging 20°C (68°F). Although November still experiences rainfall, it is slightly less, with 164 mm (6.4 in) over 17 days and a higher humidity level of 91%. For a deeper look into the weather specifics in November, visit La Union weather in November.

May and December offer contrasting weather experiences. In May, temperatures soar with a minimum of 15°C (59°F) and averages peaking at 25°C (77°F), reaching highs of 36°C (97°F). This month is also characterized by significant rainfall, with 196 mm (7.7 in) of precipitation over 19 days, coupled with high humidity levels averaging 82%. In contrast, December presents a cooler climate, featuring a minimum temperature of 4°C (39°F) and an average of 18°C (64°F), with maximum temperatures reaching 30°C (86°F). Rainfall is less frequent in December, totaling 81 mm (3.2 in) over just 11 days, and humidity is slightly higher at 91%. For a detailed look at December weather, you can visit La Union weather in December.

Compare La Union's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in La Union

As May unfolds in La Union, the weather brings a distinct warmth and humidity that sets it apart from the cooler months preceding it. With maximum temperatures soaring, residents and visitors experience a tropical embrace characterized by high humidity levels, creating a lively atmosphere. Rain becomes more frequent, with nearly half the month witnessing precipitation, breaking up the heat and nurturing the lush landscapes. This transitional month serves as a reminder of the vibrant summer ahead, perfectly captured in the unique charm of La Union's climate. For a deeper dive into the seasonal variations, check out La Union Climate.