Last updated: August 21, 2025
Experience the vibrant May weather of La Union, Colombia, characterized by warm temperatures and abundant rainfall. With maximum highs reaching 36°C (97°F) and an average of 28°C (83°F), residents and visitors can expect a tropical climate that's both inviting and invigorating. The month sees an average low of 23°C (74°F), perfect for enjoying the lush surroundings. However, be prepared for 259 mm (10.2 in) of precipitation over approximately 27 days, accompanied by a humidity level of 79%, creating a rich and fertile environment. Whether you're exploring the outdoors or soaking in the local culture, May promises a dynamic experience in this beautiful Colombian town.
In May, La Union, Colombia experiences a delightful shift in temperatures, characterized by a minimum of 23°C (74°F), an average of 28°C (83°F), and a maximum of 36°C (97°F). This month marks a gradual cooling trend compared to the scorching highs of previous months, with averages dipping slightly as the rainy season approaches. While the nights remain comfortably warm, daytime temperatures are still pleasantly warm, making it an inviting time for outdoor activities. As May unfolds, the consistent warmth combined with the onset of seasonal rains breathes life into the lush landscapes, adding a vibrant touch to the region's natural beauty.
May in La Union, Colombia, brings a significant surge in precipitation, with an impressive 259 mm (10.2 in) of rainfall spread across 27 days. This marks a stark contrast to the preceding months, particularly April's 150 mm (5.9 in), indicating the peak of the rainy season. The heightened rainfall in May not only enhances the lush landscapes but also underscores a pattern where the region experiences its most substantial downpours as late spring transitions into early summer. As the month unfolds, the rhythm of rain is a defining characteristic, painting a vivid picture of nature's bounty and the life it supports in this vibrant locale.
In May, La Union, Colombia, experiences a notable surge in humidity, reaching 79%—a significant increase from previous months. This uptick marks the beginning of a trend that sees humidity steadily rise through the summer months, peaking in July at a lush 88%. The late spring transition highlights the region's shift from the drier early months of the year, where humidity levels hovered between 65% and 70% from January to April. As the year's warmer season unfolds, residents and visitors alike can expect a more tropical atmosphere, perfectly setting the stage for lush landscapes and vibrant ecosystems characteristic of this enchanting locale.
In May, La Union, Colombia, continues to experience an extreme UV Index of 14, which is consistent with the high levels seen in the preceding months. This trend highlights a peak in sun exposure, characterized by a rapid burn time of just 10 minutes. As temperatures rise towards mid-year, sun safety becomes increasingly vital for residents and visitors alike. With the UV Index gradually decreasing in June, but still remaining at a significant 13, it's crucial to stay informed and protected. For more detailed insights and updates, check out La Union UV Index.
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In La Union, Colombia, the sun shines brightly, especially from January to March, where the city basks in a delightful increase of daylight hours, peaking at 323 hours in March. As spring unfolds, the sunshine starts to wane slightly, with May witnessing 240 hours of bright days—still commendable but a dip from the earlier months. Following this, the summer months of June and July bring back a more consistent glow, with hours ranging between 248 to 271. Interestingly, as the year progresses toward its end, December booms with a resurgence of sunlight, offering 313 hours to wrap the year on a luminous note. This pattern reveals La Union's rhythmic dance with the sun, making each month a unique experience under its warm embrace.
As the calendar turns to May in La Union, Colombia, there is a marked decline in the likelihood of sunny weather, with the chance of clear skies dipping to a mere 8%. This trend from earlier months reveals a significant drop-off, as January enjoys a 59% chance of sunshine that gradually wanes through the spring. By April, the sun's presence is almost a distant memory with only 11% likelihood, leading into May's even gloomier outlook. Following this pattern, the months ahead, including June and July, remain similarly overcast, suggesting that if you're planning a visit, it's wise to prepare for a mostly cloudy experience.
In La Union, Colombia, the daylight duration exhibits a fascinating pattern throughout the year. Beginning in January and February, residents enjoy about 11 hours of sunlight, providing a gentle start to the year. As spring unfolds in March and April, daylight stretches to 12 hours, inviting more outdoor activities under the warm Colombian sun. This comfortable duration continues through the core of the year—May through September—showcasing an ideal environment for both locals and visitors to relish in nature. However, as October approaches, daylight returns to 11 hours, marking a gradual transition into the shorter days of late fall and winter. This rhythmic cycle not only enhances the region's vibrant atmosphere but also plays a crucial role in agricultural and social activities throughout the seasons.
In La Union, Colombia, the winds of May gently whisper at an average speed of 1.5 m/s (3 mph), showcasing a slight decline from the breezier months of January to April. This trend reflects a broader pattern of diminishing wind speeds as the year progresses into the warmer months. After peaking in February at 2.3 m/s (5 mph), the winds gradually calm, hinting at the onset of the tropical season. Interestingly, the speed stabilizes around 1.5 m/s in both October and November, suggesting a consistent lull in wind activity as the year closes. Overall, May serves as a transitional phase, guiding La Union from the vibrant winds of early year into the stillness of summer.
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.
In comparing the weather between May and January, May tends to be warmer, with average temperatures reaching 28°C (83°F) and maximums soaring up to 36°C (97°F). However, it also experiences significantly more rainfall, with 259 mm (10.2 in) of precipitation over 27 days, resulting in higher humidity at 79%. In contrast, January features slightly cooler average temperatures at 29°C (84°F), with maximums peaking at 37°C (99°F). Additionally, January is much drier, receiving only 27 mm (1.1 in) of precipitation over just 5 days and maintaining a lower humidity level of 70%. For more details, you can check La Union weather in January.
May and February showcase distinct weather patterns, with February generally experiencing higher average temperatures. In February, temperatures hover between a minimum of 23°C (74°F) and a scorching maximum of 39°C (103°F), making it the hottest month compared to May's range of 23°C (74°F) to 36°C (97°F). However, May is significantly more humid at 79%, compared to February's 67%, and also sees much higher levels of rainfall, with 259 mm (10.2 in) falling over 27 days, while February only registers a mere 6 mm (0.2 in) on a single day. For more details on February weather in La Union, you can refer to La Union weather in February.
In May, the weather is characterized by milder temperatures with a minimum of 23°C (74°F) and a maximum of 36°C (97°F), contributing to an average temperature of 28°C (83°F). However, it is also marked by significantly higher precipitation, totaling 259 mm (10.2 in) over approximately 27 days, along with a humidity level of 79%. In contrast, March experiences slightly warmer conditions with a minimum temperature of 24°C (75°F) and a maximum of 39°C (103°F), leading to an average temperature of 30°C (86°F). Precipitation is much lower during this month, at only 48 mm (1.9 in) across 9 days, and the humidity is comparatively lower at 65%. For a more detailed look at March weather in La Union, you can refer to La Union weather in March.
In comparing the weather of May and April, we see some notable differences. April maintains a slightly higher average temperature of 29°C (84°F) with maximum temperatures reaching up to 38°C (100°F), which makes it feel hotter despite the same minimum temperature of 23°C (74°F) as in May. However, May features a more humid atmosphere with an average humidity of 79% compared to April's 67%. Additionally, May experiences significantly more rainfall, totaling 259 mm (10.2 in) over 27 days, while April sees less precipitation at 150 mm (5.9 in) across 23 days. For more detailed insights on April weather, you can visit La Union weather in April.
May and June share similar temperature profiles, with both months recording minimum temperatures of 23°C (74°F) and average temperatures around 28°C (83°F). However, June slightly edges out May with a maximum temperature reaching 36°C (98°F), compared to May's maximum of 36°C (97°F). Precipitation decreases from 259 mm (10.2 in) in May to 229 mm (9.0 in) in June, and the number of rainy days is slightly lower in June at 26 days versus May's 27 days. Notably, June also experiences higher humidity levels at 87%, compared to May's 79%. For more detailed information, check out La Union weather in June.
In May, temperatures typically range from a minimum of 23°C (74°F) to a maximum of 36°C (97°F), averaging 28°C (83°F). This month also experiences substantial rainfall, with a significant 259 mm (10.2 in) of precipitation occurring over 27 days, resulting in a humidity level of 79%. In contrast, July sees a slightly warmer minimum temperature of 24°C (75°F) while maintaining the same average of 28°C (83°F) and a comparable maximum temperature of 36°C (96°F). However, precipitation decreases to 198 mm (7.8 in) over 25 days, accompanied by an increase in humidity to 88%. For more details, you can check La Union weather in July.
In comparing the weather of May and August, both months share similar temperature ranges, with minimums at 23°C (74°F) and average highs of around 28°C (83°F). However, May experiences slightly warmer maximum temperatures of up to 36°C (97°F), while August's highs reach a maximum of 35°C (96°F). In terms of precipitation, May is considerably wetter, receiving 259 mm (10.2 in) over 27 days, compared to August's 209 mm (8.2 in) over 25 days. Furthermore, August features higher humidity levels at 87%, while May has a humidity of 79%. For a detailed look at August weather patterns, check out La Union weather in August.
May and September exhibit similar temperature ranges, with both months featuring a minimum of 23°C (74°F) and an average temperature around 28°C (82-83°F). However, May tends to be slightly warmer, with a maximum temperature reaching up to 36°C (97°F), compared to September's peak of 35°C (95°F). In terms of precipitation, May experiences a higher volume at 259 mm (10.2 in) over 27 days, while September sees a decrease to 209 mm (8.2 in) with the same number of rainy days. Additionally, humidity levels rise in September to 87%, compared to 79% in May, contributing to a more humid atmosphere. For a closer look at September's weather specifics, visit La Union weather in September.
In May, temperatures in La Union range from a minimum of 23°C (74°F) to a maximum of 36°C (97°F), with an average of 28°C (83°F). This month experiences significant rainfall, totaling 259 mm (10.2 in) across 27 days, coupled with high humidity levels averaging 79%. In comparison, October shows a similar temperature range, with minimums and maximums of 23°C (74°F) and 36°C (96°F), respectively, and an average of 27°C (82°F). However, the rainfall is slightly less, at 214 mm (8.4 in), spread over 29 days, and humidity increases to 86%. For more detailed insights on October weather, you can check La Union weather in October.
May and November in La Union present warm temperatures with minimal variation. Both months share a similar minimum temperature of 23°C (74°F) and an average of around 28°C (83°F), but May experiences slightly hotter maximums, reaching up to 36°C (97°F), compared to November's peak of 34°C (94°F).
In terms of precipitation, May sees significantly higher rainfall at 259 mm (10.2 in), while November receives 186 mm (7.3 in). Interestingly, both months have the same number of rainy days—27—but November exhibits a higher humidity level of 86% compared to May's 79%. For more insights on November's climate, check out La Union weather in November.
In May, the weather is characterized by warm temperatures, with a minimum of 23°C (74°F) and an average of 28°C (83°F), peaking at a maximum of 36°C (97°F). This month also experiences significant rainfall, totaling 259 mm (10.2 in) over 27 days, and humidity levels remain high at 79%. In contrast, December features similar minimum and average temperatures, but slightly cooler maximums of 35°C (95°F). Precipitation drops to 64 mm (2.5 in) spread over 15 days, with humidity remaining relatively consistent at 80%. Overall, while both months share warmth, December is notably drier and less intense in rainfall. For more detailed insights, you can check La Union weather in December.
As May unfolds in La Union, residents experience a distinct shift in weather characterized by warmer temperatures and increased moisture. Unlike the cooler months earlier in the year, May's warmth, with its peak reaching a sweltering 36°C, pairs with high humidity levels of 79% that create a tropical atmosphere. The month also sees significant rainfall, with precipitation occurring on nearly half of the days, leading to a total of 259 mm. This combination of heat and moisture fosters lush landscapes and vibrant ecosystems, making May a unique and transformative time in La Union. For a deeper dive into the climate patterns of this region, visit La Union Climate.