Last updated: August 21, 2025
In Pasto, Colombia, May offers a mild climate characterized by maximum temperatures reaching 22°C (73°F) and an average of 14°C (58°F), while the mercury dips to a comfortable minimum of 8°C (48°F) during the cooler nights. This month is also marked by significant rainfall, with total precipitation reaching 241 mm (9.5 in) over an impressive 28 days, contributing to a lush and vibrant landscape. The atmosphere is infused with a substantial humidity level of 93%, enhancing the region's lush greenery and rich biodiversity.
In May, Pasto, Colombia enjoys a mild climate that reflects the city's consistent temperatures throughout the year. With minimum temperatures hovering around 8°C (48°F) and a maximum reaching 22°C (73°F), May is marked by the same steady average of 14°C (58°F) commonly seen in the preceding months. This month follows a trend of minimal fluctuations, providing a comfortable atmosphere ideal for exploration. While the temperature varies slightly from the preceding April, the overall consistency offers visitors a reliable forecast for activities, showcasing Pasto’s unique charm in its cooler, temperate climate.
In Pasto, Colombia, May is characterized by significant rainfall, recording 241 mm (or 9.5 in) over 28 days. This month continues a trend of substantial precipitation that begins in March, peaking in April before the consistent downpours of May. While slightly less than the preceding months, May's rainfall still ranks highly among the year, indicating a persistent wet season that keeps the lush landscape vibrant. Following May, the precipitation starts to decline, transitioning into drier months such as July and August. Overall, the consistent rainfall throughout this time highlights the region's tropical climate, nourished by the continuous rain that defines the early part of the year.
As May descends upon Pasto, Colombia, the city experiences a notable spike in humidity, soaring to an impressive 93%. This trend marks the zenith of the humidity cycle, following a gradual increase from 72% in January to 83% in April. The transition into the mid-year months continues with a consistent 93% humidity into June, highlighting the region's characteristic wet conditions. Following this humid peak, the numbers begin to recede, with July's humidity dropping to 84% and continuing the decline into the drier months of late summer and fall, where levels can plummet to as low as 53% in September. The yearly cycle illustrates a clear shift from the high humidity prevalent in the first half of the year to a more comfortable climate as the seasons shift.
In May, the UV Index in Pasto, Colombia remains notably high at 17, categorizing it as extreme and indicating a burn time of just 10 minutes. This trend aligns with the preceding months—January through April where the UV Index also peaked at 17 and 19, consistently demanding protective measures against the sun. Following May, the intensity slightly decreases, hitting 14 in June, but the risk remains pronounced throughout the year. Overall, residents and visitors alike should exercise caution and apply proper sun protection, especially during these intense UV periods. For more details, visit the Pasto UV Index.
UV Risk Categories
May in Pasto, Colombia, enjoys a delightful 263 hours of sunshine, contributing to its vibrant atmosphere. As spring transitions into summer, the city experiences a consistent trend of bright days, with sunshine hours gradually increasing from January’s 235 hours to a peak in August at 315 hours. This upward trend underscores May's positioning as a delightful precursor to the sun-soaked months of July and August. Even as the sunshine slightly ebbs in the months that follow, the overall yearly pattern reveals Pasto as a place where sunny days dominate, making it an inviting destination for those seeking warmth and light.
In the vibrant city of Pasto, Colombia, the likelihood of sunny weather takes a modest turn in May, with a 12% chance of sunshine. This slight uptick offers a welcome respite after the particularly overcast months of January through April, where the sun makes rare appearances, with chances plummeting to as low as 5%. May's sunny prospects align closely with the following month, June, which also holds a 12% chance. However, as the year progresses into the warmer summer months, the likelihood of sunshine increases significantly, peaking at 19% in July. So, while May may not guarantee sunny skies, it signals the start of a gradual transition towards sunnier days ahead in Pasto.
In Pasto, Colombia, the daylight duration remains remarkably consistent throughout the entire year, averaging 12 hours each day. This unchanging pattern creates a unique rhythm in the region, with each month offering an equal balance of light and darkness. Whether it's the bright days of January or the cooler nights of December, residents and visitors alike can rely on the steady cadence of daylight. This stable sunlight fosters an environment that supports a variety of activities and cultural events, making Pasto a charming destination where the uniformity of daylight enhances the overall experience of everyday life.
In Pasto, Colombia, the month of May marks a noticeable increase in wind activity, with average wind speeds reaching 1.6 m/s (4 mph)—a slight uptick from the preceding months. This gentle breeze sets the stage for the transition into the more brisk conditions of late spring and early summer. As the year progresses, wind speeds continue to rise, peaking in July at 2.4 m/s (5 mph). Overall, the consistent patterns from January through April, where winds hover around 1.5 m/s, offer a calm backdrop, but May's subtle shift hints at the vibrant dynamics of the approaching warmer months. The crispness in the air can invigorate outdoor activities, allowing residents and visitors alike to embrace the natural beauty of Pasto's landscape.
Weather in Pasto varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Pasto, focusing on differences in temperature, rainfall, humidity, and UV levels.
May and January present distinct weather patterns in terms of temperature, precipitation, and humidity. In May, temperatures range from a minimum of 8°C (48°F) to a maximum of 22°C (73°F), with an average of 14°C (58°F). This month experiences considerable rainfall, totaling 241 mm (9.5 in) spread over 28 days, resulting in high humidity levels at 93%. Conversely, January features slightly cooler temperatures with a minimum of 5°C (41°F) and a maximum of 23°C (73°F), while averaging the same 14°C (58°F) as May. However, it sees less precipitation at 163 mm (6.4 in) over 21 days and a lower humidity of 72%. For further details on the January weather specifics, visit Pasto weather in January.
May and February exhibit similarities in average temperatures, both hovering around 14°C (58°F), but they show notable differences in precipitation and humidity levels. May experiences a higher maximum temperature of 22°C (73°F) and a higher average precipitation of 241 mm (9.5 in) spread over 28 days, resulting in a much more humid environment with 93% humidity. In contrast, February has a slightly lower maximum temperature of 23°C (74°F) and considerably less rainfall at 173 mm (6.8 in) over 24 days, contributing to a more comfortable humidity level of 66%. For more detailed insights, check out Pasto weather in February.
In comparing the weather in March and May, we find that both months have similar average temperatures, with March having a slightly higher maximum temperature of 24°C (75°F) compared to May's 22°C (73°F). However, May experiences greater precipitation, totaling 241 mm (9.5 in) across 28 days, while March sees 273 mm (10.8 in) over 29 days, indicating that both months are quite rainy but March is slightly wetter. Humidity levels are also notably different, with May reaching a high of 93%, giving it a more humid feel than March’s 74%. For a detailed look, you can check out Pasto weather in March.
In comparing the weather of May and April, both months exhibit similar temperature patterns, with minimums around 8°C (48°F), averages of 14°C (58°F), and maximums peaking at approximately 22°C (73°F). However, May experiences slightly more precipitation at 241 mm (9.5 in) over 28 days, compared to April's 237 mm (9.3 in) across 27 days. Additionally, May is noticeably more humid, with levels reaching 93%, while April maintains a lower humidity level of 83%. For further insights into April's climate, you can explore Pasto weather in April.
May and June share similar average temperatures, both hovering around 14°C (58°F) with maximums reaching up to 22°C (71°F in June). However, May tends to be wetter, receiving 241 mm (9.5 in) of precipitation over 28 days, whereas June sees a decrease to 172 mm (6.8 in) across 27 days. Humidity remains consistent at 93% for both months, contributing to a damp atmosphere. For more details, check out Pasto weather in June.
In May, temperatures in Pasto range from a minimum of 8°C (48°F) to a maximum of 22°C (73°F), with an average of 14°C (58°F). The month is characterized by high humidity at 93% and significant rainfall, accumulating 241 mm (9.5 in) over 28 days. In contrast, July experiences slightly cooler temperatures, with a minimum of 6°C (43°F) and a maximum of 22°C (72°F), maintaining the same average of 14°C (57°F). However, July sees a decrease in precipitation to 112 mm (4.4 in) over 22 days, and humidity levels drop to 84%. For more details on Pasto weather in July, visit this link: Pasto weather in July.
May and August present quite different weather patterns despite having similar average temperatures. In May, temperatures range from a minimum of 8°C (48°F) to a maximum of 22°C (73°F), accompanied by high humidity levels at 93% and significant precipitation of 241 mm (9.5 in) over 28 days, making it a particularly wet month. In contrast, August features slightly cooler temperatures, with a minimum of 6°C (44°F) and a maximum of 22°C (72°F), but it experiences much less rainfall, totaling 85 mm (3.4 in) across just 17 days, and a more comfortable humidity of 61%. This makes August a drier and more pleasant month compared to the soggy conditions of May. For more information on the weather in August, visit Pasto weather in August.
In May, temperatures fluctuate between a minimum of 8°C (48°F) and a maximum of 22°C (73°F), with an average of 14°C (58°F). This month is characterized by high humidity at 93% and significant rainfall, totaling 241 mm (9.5 in) over 28 days. In contrast, September offers slightly cooler temperatures, with a minimum of 6°C (43°F) and a maximum of 23°C (74°F), while maintaining a similar average of 15°C (58°F). Precipitation in September is much lower at 102 mm (4.0 in) across just 19 days, and the humidity drops significantly to 53%. For a more detailed comparison, you can check Pasto weather in September.
May and October in Pasto showcase notable differences in weather characteristics, despite their average temperatures being similar. May tends to be wetter, with a higher precipitation of 241 mm (9.5 in) over 28 days, contributing to a humid environment at 93%. In contrast, October enjoys slightly milder rainfall at 201 mm (7.9 in) across 26 days, alongside lower humidity levels at 67%. While May's temperatures range from a minimum of 8°C (48°F) to a maximum of 22°C (73°F), October boasts a slightly higher maximum temperature of 24°C (75°F) while maintaining a comparable average. For more detailed insights into October's weather, check out Pasto weather in October.
In comparing the weather of May and November, we see that both months have similar average temperatures, hovering around 14°C (58°F), with May experiencing a maximum of 22°C (73°F) and November slightly warmer at 23°C (74°F). However, November has a higher total precipitation of 266 mm (10.5 in) across 27 days, compared to May's 241 mm (9.5 in) over 28 days, indicating that rain is more concentrated in November, even though the number of rainy days is quite similar. Additionally, the humidity in May is notably higher at 93%, while November's humidity drops to 78%, contributing to a different overall feel in the atmosphere. For more details, check out Pasto weather in November.
In May, the weather typically features a slightly wider temperature range with a minimum of 8°C (48°F) and a maximum of 22°C (73°F), while December sees a slightly lower minimum of 7°C (45°F) but maintains similar average and maximum temperatures. Both months experience considerable precipitation, with May receiving 241 mm (9.5 in) over 28 days, compared to December’s 237 mm (9.3 in) over 27 days. Additionally, May has higher humidity at 93%, while December's humidity is a bit lower at 85%. For more detailed information about December's weather, you can check Pasto weather in December.
As May unfolds in Pasto, it brings a transition filled with notable contrasts compared to the rest of the year. Characterized by a cool, average temperature that hovers around 14°C, this month stands out with a high humidity level of 93% and a significant precipitation amount over numerous days, creating a lush, verdant landscape. The frequent rain showers contribute to the city’s vibrant flora, enriching the overall atmosphere. While many regions experience warmer climes, Pasto’s May offers a refreshing escape, emphasizing its unique climate. For more details, explore Pasto Climate.