Last updated: August 31, 2025
In May, Bayamón, Puerto Rico, experiences a warm and humid climate, with maximum temperatures reaching 31°C (87°F) and an average of 26°C (79°F). The island sees a minimum temperature of around 22°C (72°F), providing a comfortable range for outdoor activities. However, be prepared for rainfall, as the month typically brings about 98 mm (3.9 in) of precipitation over approximately 24 days, resulting in a humidity level around 75%. Visitors should embrace the tropical feel while staying vigilant against the frequent showers that characterize this vibrant month.
In May, Bayamón, Puerto Rico, begins to embrace the warmth of summer, with temperatures reflecting a delightful upward trend. The month opens with a minimum of 22°C (72°F), climbing to an average of 26°C (79°F) and peaking at a comfortable 31°C (87°F). This steady rise from the cooler April temperatures signals a shift towards hotter days, while the pleasant evenings still maintain a hint of coastal breeziness. May’s warmth invites both locals and visitors to enjoy the outdoors, making it an ideal time for activities ranging from beach outings to vibrant evening strolls amidst the tropical backdrop. As the month progresses, the heat becomes more pronounced, heralding the arrival of summer, yet the balmy nights keep the atmosphere inviting.
In May, Bayamón, Puerto Rico experiences a notable uptick in precipitation, recording an impressive 98 mm (3.9 in) of rainfall over 24 days. This marks a continuation of the wet season, following closely behind April's rainfall of 77 mm (3.0 in). As spring transitions into summer, the region witnesses a steady increase in both the amount and frequency of rain, with May's precipitation almost matching the levels expected in June and July. The rain-soaked days serve as a prelude to the region's peak rainy season, with increasingly lush landscapes setting the stage for vibrant flora and a thriving ecosystem. This trend underscores the importance of understanding and preparing for the seasonal shifts that define Bayamón's unique climate.
In May, Bayamon, Puerto Rico, experiences a humidity level of 75%, mirroring the slightly lower humidity seen in April. This trend highlights a subtle stability in the region's moisture levels as spring transitions toward summer. With humidity levels gradually increasing, from 76% in January down to 75% in May, it sets the stage for the warmer, more humid months of June and July, where humidity peaks at 77% and 80% respectively. Overall, May serves as a transitional month, marked by comfortable humidity that invites both locals and visitors to enjoy the vibrant natural beauty of the island before the summer heat truly sets in.
In May, Bayamon, Puerto Rico, sees a significant rise in solar intensity, with the UV Index peaking at 14, categorized as extreme. This trend continues from the previous months, where UV levels reached 13 in March and April, underscoring the need for sun safety as burn times shrink to just 10 minutes. Following May, the UV Index gradually decreases, but it remains at high levels through the early summer months. As visitors and residents enjoy the beautiful weather, it's crucial to stay vigilant against harmful UV exposure. For more detailed information on UV levels throughout the year, check out Bayamon UV Index.
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May shines brightly in Bayamón, Puerto Rico, as the region experiences its sunniest month of the year with an impressive 356 hours of sunshine. This increase follows a gradual rise from 346 hours in both March and April, reflecting the onset of warmer weather. As spring transitions into summer, the daylight hours continue to be generous, ensuring that residents and visitors alike can bask in the sun's warmth. Notably, this month stands out as a peak point before the sunshine slightly dips to 343 hours in June. Overall, the trend showcases a vibrant spring bursting with light, setting an inviting stage for outdoor activities and cherished moments under the sun.
In Bayamon, Puerto Rico, the likelihood of sunny weather in May stands at 50%, reflecting a mild increase compared to the preceding month of April, which sees a lower chance of sunshine at 43%. As spring progresses, May marks a transition toward the sunnier months of the calendar year, although it still falls shy of the brighter days experienced in February (65%) and March (60%). The following months, particularly June through August, show a significant dip in sunshine probability, plummeting to as low as 20% in June. Overall, May offers a pleasant balance of sunny days, making it an appealing month for outdoor activities before the summer heat takes hold.
In Bayamon, Puerto Rico, the daylight duration experiences a gradual shift throughout the year. As the year begins, January and February offer a consistent 11 hours of sunlight, ideal for those who enjoy the cooler mornings and evenings. March marks the onset of longer days with an increase to 12 hours, a trend that continues into April and May, allowing for more outdoor activities as spring unfolds. The days peak in June and July, boasting a generous 13 hours of daylight, perfect for sun-seekers. However, as summer transitions to fall, daylight duration gradually tapers back to 12 hours in August and September, before settling back to 11 hours from October to December. This natural ebb and flow of daylight fosters a vibrant cycle of seasonal activities in Bayamon.
In May in Bayamon, Puerto Rico, the winds are gently refreshing, with an average speed of 3.4 m/s (8 mph). This month marks a slight resurgence from the calmer April, which recorded a breeze of 2.9 m/s (6 mph). As spring transitions to summer, the winds begin to strengthen, hinting at the changing season. Notably, May’s winds mirror those of March, showcasing a consistent breeze that persists into late spring. This trend sets the stage for the upcoming summer months, where wind speeds increase further, peaking at 4.0 m/s (9 mph) in July. Thus, May serves as a transitional period, balancing the mellow winds of early spring with the lively gusts that characterize the summer ahead.
Weather in Bayamon varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Bayamon, focusing on differences in temperature, rainfall, humidity, and UV levels.
In May, the weather is typically warmer and more humid than in January, with average temperatures ranging from a minimum of 22°C (72°F) to a maximum of 31°C (87°F). This month also experiences significantly more precipitation, totaling 98 mm (3.9 in) over about 24 days. In contrast, January enjoys slightly cooler temperatures, averaging between 19°C (66°F) and 29°C (84°F), with less rainfall of 48 mm (1.9 in) spread over 16 days. Both months maintain high humidity levels, but May's warmth and rainfall create a noticeably more tropical atmosphere. For a detailed look at the January weather, you can visit Bayamon weather in January.
When comparing the weather in May and February, we see a noticeable increase in temperature during May. The minimum temperature in May starts at 22°C (72°F) while February's minimum is slightly lower at 20°C (69°F). The average temperatures also rise from 24°C (75°F) in February to 26°C (79°F) in May, reaching a maximum of 31°C (87°F) in May compared to February's peak of 28°C (83°F). Additionally, May experiences higher precipitation levels, with 98 mm (3.9 in) over 24 days, whereas February sees only 53 mm (2.1 in) across 18 days. Interestingly, both months share the same humidity level of 75%, creating a consistently humid atmosphere. For more detailed insights, you can check Bayamon weather in February.
In comparing the weather of May and March, May typically sees warmer temperatures, with a minimum of 22°C (72°F) and an average of 26°C (79°F), peaking at 31°C (87°F). In contrast, March has slightly cooler temperatures, ranging from a minimum of 20°C (69°F) to an average of 24°C (76°F), and a maximum of 29°C (85°F). While both months experience considerable rainfall, May tends to be wetter, with 98 mm (3.9 in) of precipitation over 24 days, compared to March's 80 mm (3.2 in) over 21 days. Humidity levels are quite similar, with May at 75% and March at 74%. For more detailed insights on March weather, check Bayamon weather in March.
In comparing the weather of May and April, we see a slight increase in temperatures, with May averaging 26°C (79°F) compared to April’s 25°C (77°F). While both months share similar minimum temperatures, May reaches a higher maximum of 31°C (87°F) against April's 30°C (86°F). Precipitation is notably heavier in May, with 98 mm (3.9 in) falling over 24 days, compared to April's 77 mm (3.0 in) over 20 days. Both months maintain the same humidity level of 75%, but May's increased rainfall may make the atmosphere feel even more humid. For more detailed information on April weather, you can visit Bayamon weather in April.
In comparing the weather between May and June, we see a slight increase in both temperature and humidity. May features a minimum temperature of 22°C (72°F) and an average temperature of 26°C (79°F), while June starts with a minimum of 23°C (74°F) and an average of 27°C (80°F). The maximum temperature remains consistent at 31°C (88°F) for both months. Precipitation levels are nearly identical, with May recording 98 mm (3.9 in) over 24 days and June closely following with 99 mm (3.9 in) across 23 days. Humidity also rises slightly from 75% in May to 77% in June. For more detailed information, check out Bayamon weather in June.
In May, the weather features a minimum temperature of 22°C (72°F) and an average of 26°C (79°F), peaking at a maximum of 31°C (87°F). The month sees significant precipitation, with 98 mm (3.9 in) of rain spread over 24 days and humidity levels around 75%. In contrast, July offers slightly warmer temperatures, with a minimum of 23°C (74°F) and an average of 27°C (81°F), while still maintaining the same maximum of 31°C (88°F). However, July experiences a higher precipitation total of 124 mm (4.9 in) over the same number of days, along with increased humidity at 80%. For more detailed information, you can check Bayamon weather in July.
In May, the weather typically features warm temperatures ranging from a minimum of 22°C (72°F) to a maximum of 31°C (87°F), with an average of 26°C (79°F). Precipitation is relatively high, with about 98 mm (3.9 in) falling over 24 days, while humidity hovers around 75%. In contrast, August sees a slight increase in temperature, with a minimum of 23°C (74°F) and an average of 27°C (81°F), peaking at 31°C (89°F). The month is also wetter, receiving approximately 130 mm (5.1 in) of rain over 25 days, along with higher humidity at 80%. For more detailed insights, you can check Bayamon weather in August.
May and September present a warm tropical climate, but there are notable differences in their weather patterns. In May, temperatures range from a minimum of 22°C (72°F) to a maximum of 31°C (87°F), with an average of 26°C (79°F) and a total precipitation of 98 mm (3.9 in) spread across 24 days. Humidity in May is a comfortable 75%.
In contrast, September sees slightly warmer temperatures with a minimum of 23°C (74°F) and a maximum of 32°C (90°F), averaging 27°C (81°F). However, it's also wetter, with 200 mm (7.9 in) of rain over 27 days and increased humidity at 79%. For more details, you can check out Bayamon weather in September.
In comparing the weather between May and October, we find that both months feature similar temperature ranges, with May averaging between 22°C and 31°C (72°F to 87°F) and October showing a slightly higher minimum of 23°C (74°F) and an average of 27°C (80°F). However, October tends to be wetter, with 183 mm (7.2 in) of precipitation over 27 days compared to May's 98 mm (3.9 in) over 24 days. The humidity levels are also slightly higher in October at 78%, compared to May's 75%. For more detailed information on October weather, you can check Bayamon weather in October.
May and November share similar temperature profiles, with both months featuring minimum temperatures around 22°C (72°F), average temperatures of 26°C (79°F), and maximum temperatures slightly varying between 31°C (87°F) in May and 30°C (86°F) in November. However, November tends to be wetter, with a total precipitation of 120 mm (4.7 in) compared to May's 98 mm (3.9 in), and it experiences slightly higher humidity levels at 78% versus May's 75%. Interestingly, both months have a similar number of rainy days, with May seeing 24 days of precipitation and November having 23 days. For more details about November weather specifically, check Bayamon weather in November.
May and December both feature warm temperatures, but May tends to be slightly hotter, with daily averages around 26°C (79°F) compared to December's 25°C (77°F). The max temperature in May reaches up to 31°C (87°F), while in December it peaks at 30°C (86°F). Additionally, May experiences higher precipitation, totaling 98 mm (3.9 in) across 24 days, compared to December's 66 mm (2.6 in) over 22 days, which contributes to a more humid atmosphere in May at 75%, slightly higher than December's 76%. For more details on December weather, check out Bayamon weather in December.
As May settles in, Bayamon experiences a striking shift in weather patterns, marked by higher temperatures and increased humidity. While the average temperature hovers comfortably, it often reaches warm peaks that make this month feel more tropical compared to others. One notable characteristic of May is the frequent rainfall, with nearly every day drenching the area, contributing to a distinctly humid atmosphere. This combination of warmth and moisture makes May a transitional period, paving the way for the heavier rains of the upcoming summer months. For a deeper understanding of what to expect throughout the year, explore Bayamon Climate.