May Weather in La Union, Peru

Last updated: August 27, 2025

Experience the vibrant May weather in La Union, Peru, where temperatures gracefully fluctuate between a maximum of 31°C (89°F) and a minimum of 16°C (61°F), averaging around 23°C (74°F). The month brings only a slight precipitation of 7 mm (0.3 in) over just one day, contributing to the region's lush surroundings. With humidity levels soaring at 89%, the air is rich and refreshing, perfect for those looking to explore the area's stunning landscapes while enjoying a warm and inviting atmosphere.

May Temperature in La Union

In May, La Union, Peru experiences a gentle shift in its climate, with temperatures providing a pleasant respite from the warmer months that precede it. The minimum temperature drops to a comfortable 16°C (61°F), while the average hovers around 23°C (74°F). This transition marks a dip from the higher averages of early spring, yet daytime highs still reach up to 31°C (89°F), ensuring that the sun's warmth remains a prominent feature. As the region heads toward winter, the consistent trend of mild evenings and sun-soaked days makes May an inviting time to explore La Union's scenic beauty.

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. In La Union, May typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec777980777371686868697074
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 decrease in rainfall, with a mere 7 mm (0.3 in) of precipitation recorded over just one day. This marks a sharp contrast to the heavier rains of earlier months, particularly March, which saw significantly higher totals of 97 mm (3.8 in) spread across seven days. As the dry season approaches, May's light showers are an indication of the region's transition to drier weather, highlighting a trend towards lower precipitation levels that will persist into the coming months. This pattern not only reflects La Union's unique climatic conditions but also underscores the importance of seasonal changes for local agriculture and water resources.

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. In La Union, May typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec14439719741227915
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

May Humidity in La Union

In La Union, Peru, May ushers in a humidity level of 89%, mirroring the moisture-laden air of January. This consistency suggests a transitional period as the region begins to shift from its peak humid months. Following the trend seen throughout the earlier months of the year, May's humidity clings to the higher end of the spectrum before gradually tapering off in June, which drops to 84%. The warmth of late autumn is met with a certain stickiness that persists into the early winter, indicative of the area's tropical climate. Overall, the pattern reflects a gentle ebb and flow in humidity, with May serving as a bridge between the intense humidity of early months and the drier conditions that lie ahead.

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, helping you understand how conditions vary by season. In May, average humidity in La Union is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%87%87%86%89%84%71%71%75%77%79%86%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in La Union

In May, La Union, Peru continues to experience an extreme UV Index of 13, with a remarkably short burn time of just 10 minutes. As part of a trend observed since January, the region's UV levels have consistently hovered between 13 and 16, demanding vigilant sun protection for residents and visitors alike. Although May sees a slight drop in the UV Index compared to the peak of 16 in March, it remains crucial to prioritize skin safety amidst these harsh conditions. With this level of exposure persisting throughout the year, including the subsequent months of June and July, maintaining awareness of the UV Index remains essential for outdoor activities. For more information, check out the comprehensive details here: 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. In May, the maximum UV index in La Union typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141516151311111214141413
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

In La Union, Peru, May heralds a delightful peak in sunshine, basking under 331 hours of radiant daylight. As the year unfolds, we observe a steady increase in sunshine hours from January's 274 hours to 322 hours by April, setting the stage for the delightful May. This month not only stands out as the sunniest so far but also nicely precedes a slight dip in June. The trend continues, showcasing the region's vibrant and inviting climate, making La Union a wonderful destination for sun-seekers during springtime, with April through June offering a splendid blend of warmth and light. As the year progresses, the sunshine persists, ensuring that La Union remains a luminous haven throughout the seasons.

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.
JanFebMarAprMayJunJulAugSepOctNovDec274h303h314h322h331h308h318h324h315h331h317h340h
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, Peru, May stands out as a beacon of sunshine, boasting a 61% chance of clear skies—the highest probability of the year. This promising forecast marks a significant leap from April's 41%, showcasing a delightful transition into brighter days. Following May, the likelihood of sunny weather dips slightly to 43% in June before climbing again in July to 58%. This upward trend in early summer makes May an ideal month for outdoor activities and enjoying the vibrant natural landscapes, as residents and visitors alike can bask in the warmth of the sun while it lasts.

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.
JanFebMarAprMayJunJulAugSepOctNovDec32%32%29%41%61%43%58%44%49%33%30%27%
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, Peru, the daylight duration exhibits a fascinating rhythm throughout the year. Starting with a consistent 12 hours of daylight in the early months of January through March, the days begin to shorten slightly as April arrives, slipping to 11 hours. This trend continues into May and persists through the winter months of June, July, and August, creating a cozy, twilight-filled atmosphere. However, as spring approaches in September, daylight gradually returns to 12 hours, and this length remains steady through the end of the year, wrapping up the cycle with a return to warmth and light in October, November, and December. This cyclical pattern highlights La Union’s unique relationship with sunlight, offering a blend of long days and serene, shorter ones.

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.
JanFebMarAprMayJunJulAugSepOctNovDec12h 23m12h 15m12h 6m11h 57m11h 50m11h 47m11h 49m11h 55m12h 3m12h 13m12h 21m12h 25m
Data source: La Union daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in La Union

In May, La Union experiences a delightful uptick in average wind speed, reaching 3.9 m/s (9 mph). This marks a smooth transition from the relatively gentle breezes of early spring, with January to April averaging around 3.3 to 3.7 m/s. As the month progresses, the wind maintains its invigorating pace, contributing to the region’s allure for outdoor enthusiasts and wind sport aficionados alike. Interestingly, the trend doesn't peak here; the winds continue to hold steady through June and July, suggesting that La Union is embraced by a consistent marine breeze that persists well into the summer months. This stability not only enhances the area’s scenic beauty but also enriches its climate, making May a particularly attractive time for visitors to enjoy the refreshing winds of the coast.

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.
JanFebMarAprMayJunJulAugSepOctNovDec3.33.62.93.73.9 m/s3.93.84.14.24.13.83.7
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

Weather in La Union varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in La Union, focusing on differences in temperature, rainfall, humidity, and UV levels.

May generally offers slightly lower temperatures compared to January, with average highs reaching around 31°C (89°F) in May, compared to 33°C (92°F) in January. Both months experience high humidity levels of 89%, creating a warm, tropical atmosphere. However, May tends to have less precipitation, averaging only 7 mm over just 1 day, while January sees more rainfall at 14 mm over 3 days. For a detailed look at January conditions, you can check La Union weather in January.

In comparing the weather between May and February, we see notable differences in temperature and precipitation. May typically experiences a milder range with minimum temperatures around 16°C (61°F) and an average of 23°C (74°F), peaking at 31°C (89°F). In contrast, February is warmer overall, with minimum temperatures starting at 19°C (67°F) and averaging 26°C (80°F), reaching a high of 33°C (92°F). Additionally, February has significantly more rainfall, with about 43 mm (1.7 in) over five days, while May enjoys drier conditions, receiving only 7 mm (0.3 in) over just one day. Both months maintain high humidity levels, with May at 89% and February at 87%. For a more detailed look at February's weather, check out La Union weather in February.

May and March offer contrasting weather experiences. In May, temperatures range from a minimum of 16°C (61°F) to a maximum of 31°C (89°F), with an average of 23°C (74°F) and very little rainfall, averaging just 7 mm (0.3 in) over a single day of precipitation. In contrast, March is noticeably warmer, with temperatures ranging from a minimum of 20°C (68°F) to a maximum of 34°C (94°F) and an average of 26°C (80°F). However, March is characterized by higher humidity at 87% and significantly more rainfall, with a total of 97 mm (3.8 in) spread over seven days. For more detailed information, check out La Union weather in March.

In comparing the weather of May and April, we notice some interesting contrasts. May features slightly cooler temperatures, with a minimum of 16°C (61°F), an average of 23°C (74°F), and a maximum of 31°C (89°F). In contrast, April offers warmer conditions, with temperatures ranging from a minimum of 18°C (64°F) to a maximum of 33°C (92°F) and an average of 25°C (77°F). Regarding precipitation, May is drier with only 7 mm (0.3 in) falling over just one day, while April sees more rainfall at 19 mm (0.7 in) across two days. Humidity levels are comparable, with May at 89% and April slightly lower at 86%. For more detailed insights, you can check La Union weather in April.

May typically showcases warmer temperatures compared to June, with average highs reaching 31°C (89°F) versus June's 30°C (85°F). Both months share a similar minimum temperature of around 16°C (61°F), but May tends to feel a bit muggier with a higher humidity level of 89%, compared to June's 84%. Precipitation is low in both months, with May receiving slightly more at 7 mm (0.3 in) compared to June's 4 mm (0.2 in) over the same number of rainy days. For more details, check La Union weather in June.

In May, the weather is generally warmer with temperatures ranging from a minimum of 16°C (61°F) to a maximum of 31°C (89°F). The average temperature during this month is about 23°C (74°F), and though there's a slight chance of rain with 7 mm (0.3 in) of precipitation, humidity levels are quite high at 89%. In contrast, July sees cooler temperatures, with a range from 15°C (59°F) to a max of 27°C (80°F) and an average temperature of 20°C (69°F). Remarkably, July experiences very low precipitation, with only 1 mm (0.0 in) and no rainy days, accompanied by relatively lower humidity at 71%. This stark difference highlights May as a warmer and muggier month compared to the cooler and drier conditions of July. For more information, you can check out La Union weather in July.

In May, the weather tends to be warmer, with average temperatures ranging from a minimum of 16°C (61°F) to a maximum of 31°C (89°F) and high humidity at 89%. The month also sees a slight amount of precipitation, averaging 7 mm over just one rainy day. In contrast, August experiences cooler temperatures, with an average range of 15°C (58°F) to 27°C (81°F), lower humidity at 71%, and significantly less rainfall, averaging only 2 mm with no rainy days. This makes August a drier and more comfortable month compared to the warmer and more humid conditions in May. For more details on August weather, you can visit La Union weather in August.

In May, the weather tends to be warmer with temperatures ranging from a minimum of 16°C (61°F) to a maximum of 31°C (89°F), while September sees slightly cooler conditions, with temperatures fluctuating between 15°C (60°F) and 28°C (83°F). Humidity levels are also higher in May at 89%, compared to a more comfortable 75% in September. Precipitation is minimal in both months, but September boasts drier weather with no rainfall recorded, unlike May, which experiences a brief rain on one day. For more specific details on September weather, you can explore La Union weather in September.

May and October both offer mild temperatures, but they exhibit slight differences in their climate profiles. In May, the average temperature reaches a warm 23°C (74°F), with maximums peaking at 31°C (89°F), while October sees a cooler average of 21°C (69°F) and maximums at 28°C (83°F). Both months experience minimal precipitation, with only 7 mm (0.3 in) and one rainy day, but October benefits from lower humidity at 77% compared to May's higher humidity level of 89%. This makes October a more comfortable time for outdoor activities. For more details on October weather, visit La Union weather in October.

In comparing May and November weather, May generally experiences warmer conditions, with average temperatures reaching up to 23°C (74°F) and maximum temperatures soaring to 31°C (89°F). The humidity is notably high at 89%, but with minimal precipitation of just 7 mm (0.3 inches) over a single day. In contrast, November sees slightly cooler temperatures with an average of 21°C (71°F) and a maximum of 30°C (86°F). Although it features a bit more precipitation at 9 mm (0.4 inches) across two days, the humidity drops to a more comfortable 79%. For more details, you can check La Union weather in November.

In May, the weather is characterized by warmer temperatures, with a minimum of 16°C (61°F) and an average of 23°C (74°F), reaching a maximum of 31°C (89°F). The month sees very little precipitation, with only 7 mm (0.3 in) spread over just 1 day, and humidity levels are relatively high at 89%. In contrast, December experiences slightly cooler mornings, with a minimum temperature of 18°C (64°F), but the average and maximum temperatures remain similar to those in May. However, December has increased rainfall, totaling 14 mm (0.6 in) over 4 days, and the humidity is slightly lower at 86%. For a more detailed outlook, check out La Union weather in December.

Compare La Union's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in La Union

In May, La Union experiences a delightful transition as temperatures reach a pleasant balance, rarely soaring too high or dropping too low. With higher humidity levels at 89% and only a sprinkle of rain across just one day, this month stands out from the typically more arid conditions seen in other months. As the average temperature hovers around a comfortable 23°C, it offers a refreshing respite just before the warmer months roll in. For those interested in understanding the distinct patterns of this region, delve deeper into May's climate details here: La Union Climate.