Last updated: August 21, 2025
In San Andres, Colombia, May brings warm tropical weather characterized by a maximum temperature of 29°C (84°F) and a pleasant average of 27°C (81°F). However, visitors should be prepared for the humidity, which hovers around 83%, contributing to the lush, vibrant atmosphere of the island. Rain is a frequent guest this month, with precipitation amounting to 156 mm (6.2 in) across approximately 23 days. While the showers may create momentary disruptions, they also enhance the island's natural beauty, making it a picturesque time to explore San Andres' stunning landscapes.
In May, San Andres, Colombia, continues to showcase its inviting tropical climate, with temperatures reflecting a pleasant consistency that's perfect for beachgoers and adventurers alike. With a minimum temperature of 25°C (78°F) and an average of 27°C (81°F), days are typically warm and enjoyable. The maximum reaches 29°C (84°F), maintaining the trend of comfortable heat seen since the start of the year. This mild warmth paves the way for outdoor activities, such as snorkeling and exploring the vibrant marine life surrounding the island. Overall, May's temperatures mirror those of the preceding months, underscoring San Andres as a prime destination for those seeking sun-soaked escapes throughout the year.
In May, San Andres, Colombia, experiences a dramatic increase in precipitation, with 156 mm (6.2 in) of rainfall accumulating over 23 days. This surge marks a significant leap from the preceding months, reflecting the island's transition into its wet season. As the skies open up and the lush greenery flourishes, May delivers nearly four times the rainfall of February, which had only 32 mm (1.3 in). The persistent showers not only contribute to the vibrant ecosystems but also set the stage for even wetter months ahead, with June and July typically delivering over 230 mm (9.1 in) each. This shift highlights a distinct seasonal pattern, showcasing San Andres as a region where water plays a vital role in shaping its natural beauty and climate.
May brings a noticeable rise in humidity to San Andres, Colombia, with levels reaching 83%. This uptick is part of a gradual increase that begins in the earlier months, starting from 79% in January and climbing steadily through the year. By the time summer hits in June, humidity peaks at 87%—the highest level observed. The overall trend indicates a warm, moist climate that characterizes the region, with humidity levels generally fluctuating between 79% and 87% throughout the year. As you enjoy the lush landscapes of San Andres in May, be prepared for the comfortable, yet humid, atmosphere that envelopes this vibrant locale.
In May, the UV Index in San Andres, Colombia reaches a striking 13, signaling an extreme exposure category with a burn time of only 10 minutes. This pattern reflects the consistent intensity of sunlight the region experiences as it transitions from April's peak of 14 back to 13, where it remains through June and much of the summer. With such high UV readings persisting throughout the year, it’s essential for visitors and locals alike to prioritize sun safety, employing protective measures such as sunscreen and hats during outdoor activities. As a trend, San Andres consistently merits attention when it comes to UV exposure, making it crucial to be informed about daily UV levels. For more detailed information, visit San Andres UV Index.
UV Risk Categories
In San Andres, Colombia, May shines brightly with an impressive 311 hours of sunshine, contributing to the island's reputation as a tropical paradise. Following the peak of sunshine in March, which boasts 341 hours, May maintains a vibrant atmosphere as daylight begins to taper slightly over the summer months. April’s strong performance with 334 hours sets a warm tone, while June’s drop to 277 hours suggests a transitional phase. Nonetheless, the consistency of sunny days from January through November makes San Andres an enticing destination year-round, with each month offering delightful glimpses of sunlight that charm both visitors and locals alike.
In San Andres, Colombia, the month of May presents a moderate 46% chance of sunny weather, reflecting a slight improvement from the preceding months, particularly April's 37%. This uptick, however, marks a continuation of the generally diminishing trend in sunshine as the year progresses; earlier months like February and March enjoy much higher probabilities at 72% and 60% respectively. With the approaching summer, San Andres begins to experience a gradual decline in sunny days heading into June, which further dips to 30%. While May may not promise an abundance of sunshine, it still stands out as a relatively brighter option before the peak of the rainy season sets in.
In San Andres, Colombia, the daylight duration exhibits an intriguing pattern throughout the year. Starting with a consistent 11 hours in January and February, the days gradually elongate to 12 hours by March and remain constant through September. This steady period of ample daylight creates an ideal backdrop for outdoor activities and exploring the island’s natural beauty. As the year winds down, daylight tapers back to 11 hours in October, November, and December, restoring the balance in this tropical paradise. This cycle not only highlights the region's equatorial charm but also underscores the seasonal rhythms that can influence both daily life and tourism in this idyllic locale.
In San Andres, Colombia, May typically witnesses a satisfying average wind speed of 7.0 m/s (16 mph), aligning closely with the higher speeds of the early months of the year. As we transition from April's gentle breeze of 6.6 m/s (15 mph) to May, there's a slight uptick that hints at the approaching summer winds. This period stands out as a favorable time for water sports, echoing the island's vibrant outdoor culture. Following May, the wind speed takes a gradual dip into the mid-year months, with June seeing a drop to 6.2 m/s (14 mph), before picking up again in July. Thus, May serves as a pivotal point, where the winds invite both adventure and relaxation on this beautiful Caribbean island.
Weather in San Andres varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in San Andres, focusing on differences in temperature, rainfall, humidity, and UV levels.
In comparing the weather between May and January, May tends to be slightly warmer with average temperatures reaching 27°C (81°F) compared to January's average of 26°C (80°F). However, May is significantly wetter, experiencing 156 mm (6.2 in) of precipitation over 23 days, while January sees only 67 mm (2.6 in) over 15 days. Humidity levels are also a touch higher in May at 83%, compared to January's 79%. For a detailed look at January's weather, you can visit San Andres weather in January.
When comparing the weather in May and February, May tends to be warmer and wetter. In May, the minimum temperature hovers around 25°C (78°F) with an average of 27°C (81°F) and a maximum of 29°C (84°F). It also experiences significant rainfall, with precipitation reaching 156 mm (6.2 in) over 23 days, resulting in a humidity level of 83%. In contrast, February is slightly cooler, with minimum temperatures of 24°C (75°F), an average of 26°C (79°F), and a maximum of 28°C (82°F). February sees much less rainfall, with only 32 mm (1.3 in) falling over 14 days and maintaining a humidity level of 80%. For a more detailed look at February weather, check out San Andres weather in February.
When comparing the weather in May and March, it's evident that both months are warm, but May tends to be slightly hotter. In May, temperatures range from a minimum of 25°C (78°F) to a maximum of 29°C (84°F), with an average of 27°C (81°F). In contrast, March features a similar temperature range, with minimums at 24°C (76°F) and maximums at 28°C (82°F), averaging 26°C (80°F).
Humidity levels are comparable between the two months, with May at 83% and March at 80%. However, May sees significantly more rainfall, accumulating 156 mm (6.2 in) over 23 days, while March only experiences 35 mm (1.4 in) across 14 days. For more detailed information about the weather conditions in March, you can visit San Andres weather in March.
In comparing the weather between April and May, both months feature similar temperature ranges, with minimums at 25°C (77°F), averages at 27°C (81°F), and maximums at 29°C (84°F). However, May experiences significantly more precipitation, with 156 mm (6.2 in) falling over 23 days, compared to April's 43 mm (1.7 in) over just 13 days. Additionally, the humidity levels rise slightly in May to 83%, contrasting with April's 82%. For more detailed information about April's weather, you can visit San Andres weather in April.
In comparing the weather between May and June, both months exhibit similar temperature ranges, with minimums around 25°C (78°F), averages of 27°C (81°F), and maximums reaching 29°C (84°F). However, June tends to be wetter and more humid than May, with precipitation increasing to 231 mm (9.1 in) over 27 days, compared to May's 156 mm (6.2 in) over 23 days. Additionally, June experiences slightly higher humidity levels at 87%, compared to May's 83%. For a more detailed look at June's weather patterns, you can visit San Andres weather in June.
In comparing the weather of May and July, both months feature similar temperature patterns, with minimums at around 25°C (77°F), averages at 27°C (81°F), and maximums reaching 29°C (84°F). However, July is notably wetter than May, with precipitation increasing from 156 mm (6.2 in) in May to 230 mm (9.1 in), and the number of rainy days rising from 23 to 27. Additionally, July's humidity is slightly higher, averaging 86% compared to May's 83%. For those interested in more details, refer to San Andres weather in July.
In May, the weather features a minimum temperature of 25°C (78°F) and an average of 27°C (81°F), with maximum temperatures reaching 29°C (84°F). Although it remains humid at 83%, May experiences significant rainfall, totaling 156 mm (6.2 in) over 23 days. Conversely, August shares similar temperatures, with a minimum of 25°C (78°F), an average of 27°C (82°F), and a maximum of 29°C (85°F). However, August sees an increase in precipitation, amounting to 231 mm (9.1 in) across 27 days, while maintaining the same humidity level of 83%. For more detailed weather information, you can check San Andres weather in August.
May and September share similar warm temperatures, with May showing a minimum of 25°C (78°F) and an average of 27°C (81°F), while September has slightly higher averages at 28°C (82°F). Both months experience highs of around 29°C (84°F to 85°F), creating a consistently warm climate. However, September tends to be a bit wetter, with precipitation measuring 188 mm (7.4 in) over 24 days, compared to May's 156 mm (6.2 in) across 23 days. Humidity levels remain relatively high in both months, with May at 83% and September slightly lower at 80%. For more detailed information about the weather conditions in September, you can visit San Andres weather in September.
In comparing the weather of May and October, both months boast similar temperature ranges, with a minimum of 25°C (78°F), an average of 27°C (81°F), and a maximum of 29°C (84°F in May and 85°F in October). However, October is notably wetter, receiving 268 mm (10.5 in) of precipitation over 27 days, compared to May's 156 mm (6.2 in) across 23 days. Additionally, October features slightly lower humidity levels at 79% compared to May's 83%. For more detailed insights, you can check the San Andres weather in October.
May and November share similar temperature ranges, with minimums around 25°C (78°F), averages of 27°C (81°F), and maximums peaking at 29°C (84°F). However, November tends to be wetter, with precipitation increasing to 205 mm (8.1 in) over 28 days compared to May's 156 mm (6.2 in) over 23 days. Despite the higher rainfall, November maintains a slightly lower humidity level at 81%, compared to May’s 83%. For a more detailed look at November weather, you can check San Andres weather in November.
In comparing the weather of May and December, both months feature similar average temperatures, with May experiencing slightly warmer conditions, averaging around 27°C (81°F), while December hovers at a comparable average of 27°C (80°F). However, May is characterized by higher humidity at 83% and more substantial rainfall, accumulating 156 mm (6.2 in) over about 23 days, compared to December’s 139 mm (5.5 in) spread across 26 days. This results in a slightly drier environment in December, despite its increased number of rainy days. For more detailed insights into December weather, you can refer to San Andres weather in December.
As May unfolds in San Andres, visitors can expect a warm and humid atmosphere, with temperatures hovering around comfortable averages. However, this month stands out due to the notable increase in rainfall, with precipitation occurring on nearly three-quarters of the days, making for a lush and vibrant backdrop. Though the beaches are still inviting, travelers should prepare for occasional downpours that differentiate May from the typically drier months. For more detailed insights on weather patterns throughout the year, check out the comprehensive guide on San Andres Climate.