Last updated: April 22, 2025
May in La Union, Mexico brings a vibrant mix of warmth and humidity, with maximum temperatures reaching up to 40°C (105°F) and an average of 28°C (83°F), perfect for sun seekers. However, as the month progresses, precipitation becomes more frequent, with 14 days of rain accumulation totaling 138 mm (5.5 in), creating lush surroundings. The humidity level sits at a comfortable 82%, enhancing the tropical ambiance and inviting visitors to experience both the sun-drenched days and lush, rejuvenating showers that characterize this beautiful coastal region.
In May, La Union, Mexico, experiences a delightful warming trend that kicks off the summer season. With minimum temperatures around 19°C (66°F) and maximum highs peaking at 40°C (105°F), residents and visitors can expect pleasantly warm days. The average temperature settles at 28°C (83°F), offering a comfortable climate for outdoor activities. As the mercury rises from the cooler months, May serves as a transition point, showcasing a notable increase in warmth compared to April's maximum of 41°C (107°F). This month sets the stage for the hotter summer months ahead, making it an ideal time to explore the beautiful landscapes of La Union while basking in the sun's embrace.
In May, La Union experiences a significant surge in precipitation, accumulating 138 mm (5.5 in) of rain over 14 days. This marks a notable increase from the previous months, reflecting the onset of the rainy season. As the temperatures rise, the lush landscape comes alive, making May the wettest month so far, paving the way for even more substantial rainfall in the following months. The upward trend continues into June, where precipitation peaks at 200 mm (7.9 in), indicating that May serves as a critical transition month, bridging the dry season to the more torrential rains typical of summer. The increased rainfall not only refreshes the scenery but also plays a vital role in replenishing local water sources, setting the stage for a vibrant ecological rebound.
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.
As May arrives in La Union, Mexico, sun lovers should be particularly cautious, as the UV Index peaks at 12, placing it in the extreme exposure category. This means that without proper protection, you can expect to burn in just 10 minutes of direct sunlight. Following a trend established in April, when the UV Index also hit 12, May maintains these high levels, reinforcing the need for vigilance against harmful UV radiation. With June expected to escalate even further with a UV Index of 13, it's essential to stay informed and protected. For more details on daily UV levels, check out La Union UV Index.
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May marks a delightful turning point in La Union, Mexico, as the region basks in 314 hours of glorious sunshine, making it one of the sunniest months of the year. This surge in sunshine hours follows a steady upward trend from January's 169 hours to April's 270 hours, with May experiencing a delightful peak. The warm weather invites both locals and tourists to indulge in outdoor adventures, from beach outings to vibrant festivals. As the summer approaches in June and July, the sunny days remain abundant, reinforcing La Union's reputation as a sun-seeker’s paradise. This delightful burst of sunlight not only enhances the natural beauty of the region but also sets the stage for a flourishing tourist season.
In La Union, Mexico, the likelihood of enjoying sunny weather in May stands at 39%, highlighting a slight improvement from the previous month of April, which had a 38% chance. As spring blooms, May maintains a consistent trend with the months surrounding it, as seen in the gradual increase from the earlier spring months—January at just 18%, climbing to 48% by March. However, as summer approaches, the chances dip notably in June to 15%, before fluctuating again until reaching a sunny peak in November and December—both hovering around 45% to 49%. This suggests that while May offers a fair chance of sunlit days, it's wise to savor these moments before the season shifts toward less predictable weather.
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.
In May, La Union, Mexico experiences a gentle breeze, with an average wind speed of 2.2 m/s (5 mph). This marks a slight dip from April's peak of 2.4 m/s, hinting at a transition into the calmer summer months. Notably, May's winds are consistent with earlier months like March and April, where speeds hovered between 2.0 to 2.4 m/s, suggesting a prevailing stability in wind patterns during this period. As the temperatures rise and the summer approaches, the winds gradually soften, dipping to 1.8 m/s (4 mph) by June, offering a tranquil atmosphere for both residents and visitors seeking to enjoy the beauty of La Union.
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.
May and January present strikingly different weather patterns. In May, temperatures soar with a minimum of 19°C (66°F) and an average high reaching 40°C (105°F), accompanied by high humidity levels at 82%. This month also sees significant precipitation, with about 138 mm (5.5 in) falling over 14 days. In contrast, January offers much cooler temperatures, with a minimum of 6°C (43°F) and a pleasant average of 19°C (67°F). Rainfall is considerably less in January, totaling around 49 mm (1.9 in) over just 7 days, though humidity remains relatively high at 88%. For a more detailed breakdown of January weather, visit La Union weather in January.
May and February present notably different weather patterns. In May, temperatures range from a minimum of 19°C (66°F) to a scorching maximum of 40°C (105°F), with an average of 28°C (83°F). This month also experiences significant rainfall, totaling 138 mm (5.5 in) over approximately 14 days, contributing to a humidity level of 82%. In contrast, February is much cooler, with temperatures ranging from a minimum of 8°C (46°F) to a maximum of 35°C (95°F) and an average of 21°C (70°F). The precipitation in February is considerably lower, at just 27 mm (1.1 in) over 7 days, and the humidity is slightly higher at 86%. For more details about February weather, you can visit La Union weather in February.
May generally experiences significantly warmer temperatures compared to March, with average highs reaching 28°C (83°F) and peak temperatures soaring up to 40°C (105°F) in May, while March sees a milder average of 23°C (74°F) and maximums of 38°C (101°F). Precipitation is also more pronounced in May, with 138 mm (5.5 in) over approximately 14 days, compared to March's lighter rainfall of 40 mm (1.6 in) across 8 days. Despite the slight increase in humidity from 82% in May to 83% in March, the overall climate shifts towards a hotter and wetter condition as spring progresses. For a more detailed look at March weather, you can check La Union weather in March.
In comparing the weather of April and May, we see a notable increase in temperatures and precipitation as we transition into late spring. April maintains a slightly cooler average temperature, with a minimum of 15°C (58°F) and a maximum of 41°C (107°F), while May's temperatures rise to a minimum of 19°C (66°F) and average around 28°C (83°F). Despite May's higher humidity at 82%, it also experiences more rain, totaling 138 mm (5.5 in) over 14 days, compared to April's 63 mm (2.5 in) over just 8 days. This makes April a drier month overall, with lighter showers, as detailed in the following link: La Union weather in April.
In comparing the weather between May and June, both months feature similar average temperatures, with May having a minimum of 19°C (66°F) and a maximum of 40°C (105°F), while June starts slightly warmer with a minimum of 20°C (69°F) and a maximum of 38°C (101°F). However, June experiences significantly more rainfall, totaling 200 mm (7.9 in) over 21 days, compared to May's 138 mm (5.5 in) over 14 days. Humidity levels are slightly lower in June at 79% compared to May's 82%, indicating a marginally more comfortable atmosphere despite the increased precipitation. For detailed insights on the weather in June, you can check La Union weather in June.
In comparing the weather of May and July, we observe some notable differences. May experiences a wider temperature range, with a minimum of 19°C (66°F) and a maximum of 40°C (105°F), while July's temperatures are slightly milder, ranging from a minimum of 21°C (69°F) to a maximum of 37°C (98°F). Both months have the same average temperature of 28°C (83°F). However, May tends to be wetter, with 138 mm (5.5 in) of precipitation over 14 days, compared to July's 123 mm (4.8 in) over 20 days. Additionally, humidity levels are higher in May at 82%, whereas July sees a decrease to 72%. For a more detailed look at July's weather, you can check La Union weather in July.
In May, temperatures in La Union range from a low of 19°C (66°F) to a high of 40°C (105°F), with an average of 28°C (83°F). The month sees significant rainfall, with 138 mm (5.5 in) of precipitation over 14 days and high humidity at 82%. In contrast, August experiences slightly warmer nights with a minimum temperature of 21°C (71°F) and an average high of 39°C (103°F). August also has a bit more rainfall at 152 mm (6.0 in) over 20 days, but the humidity drops to 74%. For further details on the weather conditions in August, check out La Union weather in August.
In May, temperatures range from a minimum of 19°C (66°F) to a maximum of 40°C (105°F), with an average of 28°C (83°F). The month sees significant rainfall, averaging 138 mm (5.5 in) over about 14 days and maintaining a high humidity level of 82%. In contrast, September tends to be slightly cooler, with temperatures ranging from a minimum of 18°C (64°F) to a maximum of 37°C (100°F), averaging 27°C (82°F). Precipitation increases to 189 mm (7.4 in) over approximately 20 days, while humidity rises marginally to 84%. For a more detailed look at September's climate, check out La Union weather in September.
May and October exhibit notable differences in weather patterns. May typically experiences higher temperatures, with averages around 28°C (83°F) and can peak at 40°C (105°F), while October's temperatures average lower at 25°C (78°F) and max out at 37°C (99°F). Precipitation levels increase in October, with 196 mm (7.7 in) spread over 17 days compared to May's 138 mm (5.5 in) over 14 days. Additionally, October tends to be more humid, with levels reaching 92% compared to May's 82%. For a detailed look at weather during October, you can check La Union weather in October.
May and November present a stark contrast in weather conditions. In May, temperatures soar, with an average high of 28°C (83°F) and maximums reaching up to 40°C (105°F), accompanied by high humidity at 82% and considerable rainfall of 138 mm (5.5 in) over 14 days. In contrast, November offers a much cooler climate with an average temperature of 22°C (72°F), minimums dipping to 4°C (39°F), and maximums reaching 32°C (90°F). This month also sees lower precipitation levels at 63 mm (2.5 in) over just 9 days, though humidity remains high at 91%. For more detailed information, visit La Union weather in November.
In comparing the weather of May and December, it is evident that May is significantly warmer and wetter. May boasts average temperatures ranging from a minimum of 19°C (66°F) to a maximum of 40°C (105°F), with an average of 28°C (83°F) and a high humidity level of 82%. The month also experiences considerable rainfall, totaling 138 mm (5.5 in) across 14 days. In contrast, December offers a much cooler climate, with temperatures ranging from a minimum of 7°C (44°F) to a maximum of 33°C (92°F) and an average of 20°C (69°F). The precipitation is minimal in December, amounting to just 18 mm (0.7 in) over four days, while humidity is slightly higher at 91%. For more detailed information, you can refer to La Union weather in December.
As May arrives in La Union, temperatures soar, with highs reaching up to a sweltering 40°C, making it a stark contrast to the cooler months preceding it. The average temperature of 28°C provides a warm environment, while nighttime tends to be more comfortable with lows around 19°C. This month also marks a shift in precipitation patterns, as rainfall intensifies, contributing to the 138 mm accumulated over 14 days and enhancing the region's lush landscapes. With humidity levels climbing to 82%, the atmosphere feels notably heavier and more tropical compared to earlier months. For a deeper understanding of the weather patterns in this region, explore the detailed information available at La Union Climate.