Last updated: August 31, 2025
In May, Carolina, Puerto Rico experiences a warm tropical climate, with maximum temperatures reaching up to 32°C (90°F) and an average temperature of 27°C (80°F). The month is marked by high humidity levels averaging 75%, creating a sultry atmosphere. Rainfall is notable, with 64 mm (2.5 in) of precipitation spread over 13 days, adding to the lush greenery of the region. Whether basking in the sun or enjoying the refreshing occasional rain, May in Carolina offers a vibrant blend of warmth and picturesque landscapes.
As May arrives in Carolina, Puerto Rico, temperatures begin to rise, setting the stage for the warmest months of the year. The month starts with a comfortable minimum temperature of 23°C (73°F), reflecting a trend of gradual warmth from previous months. The average temperature ticks up to 27°C (80°F), while midday highs can soar to 32°C (90°F), marking a transition into the humid summer season. This increase in warmth is a clear indicator of the tropical climate's influence, with May showcasing a seamless blend of sunny days and inviting evenings, ideal for outdoor adventures. With these rising temperatures, residents and visitors alike can look forward to the vibrant energy that this time of year brings.
In May, Carolina, Puerto Rico experiences a moderate precipitation level of 64 mm (2.5 in), accompanied by 13 rainy days. This marks a slight increase from the previous month, highlighting a trend of rising moisture as the region transitions toward the wetter summer months. With rainfall on nearly half the days in May, residents can expect an invigorating environment, setting the stage for a lush, vibrant landscape. Despite the uptick in precipitation, the month remains relatively drier compared to the upcoming summer peak, where July and August average around 87 mm (3.4 in) and 99 mm (3.9 in), respectively. As the seasonal shift unfolds, these May showers act as a prelude to the lushness that defines the Caribbean summer.
In Carolina, Puerto Rico, the month of May offers a comfortable humidity level of 75%, consistent with the averages seen in the preceding months. As the region transitions from the early part of the year, where humidity hovers around 76% to 74%, May marks a key point where the moisture levels stabilize before the summer months kick in. Notably, June and July see an uptick, reaching 77% and 80%, respectively. This gradual rise hints at the approaching summer, establishing a pattern where humidity peaks in the hotter months of July and August, making May a pleasant interlude before the sweltering heat sets in. Overall, May serves as a bridge, maintaining moderate humidity while setting the stage for the more humid conditions that follow.
As May rolls into Carolina, Puerto Rico, residents and visitors should brace themselves for a significant rise in UV exposure, boasting an impressive UV Index of 14. This places it firmly in the extreme exposure category, with a burn time of just 10 minutes. The trend from previous months is evident, as UV levels have steadily crept upwards since January, where the index began at 9. Specifically, the UV Index hit peaks of 13 in April and again in June, but May stands out as the month with the highest intensity. With the sun's rays becoming more intense, it's crucial to stay informed and take appropriate sun protection measures. For more detailed insights on UV levels throughout the year, check out the Carolina UV Index.
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May in Carolina, Puerto Rico, welcomes an impressive 356 hours of sunshine, marking it as one of the sunniest months of the year. This trend of increasing daylight is evident as the island transitions from the cooler depths of winter, where January offered only 257 hours, to the vibrant warmth of spring. From a steady climb through the early months — 303 hours in February and peaking at 346 hours in both March and April — May shines brightly, outpacing its predecessors. This sunny momentum continues into the summer, with 343 hours in June and 353 hours in July, suggesting that the embrace of sunlight nurtures both the landscape and the spirit as the season unfolds. Overall, the gradual rise in sunshine hours throughout the spring and early summer captures the essence of Puerto Rico’s radiant and inviting climate.
In Carolina, Puerto Rico, the likelihood of sunny weather in May stands at a moderate 56%, reflecting a slight uptick from the previous month. This trend marks a recovery from the generally overcast April, which saw only a 49% chance of sunshine. As we glance at the broader yearly perspective, May fits into a pattern of fluctuating sunshine, peaking in February at a bright 70%. The months leading into summer, particularly June with a mere 24%, suggest that while May brings more sun than its predecessor, the approaching summer could see a dip in sunny days. Overall, May strikes a balance—a transitional month that offers a pleasant chance of sun before the heat and humidity of summer set in.
In Carolina, Puerto Rico, the daylight duration begins at a steady 11 hours in January and February, gradually expanding to a more sun-drenched 12 hours by March and April. As May rolls in, residents continue to bask in 12 hours of daylight, maintaining this pleasant length through August. The longer days peak in June and July, where the sun shines brightly for 13 hours, inviting more outdoor activities and summer fun. As the year transitions toward fall, daylight begins to wane again, returning to 12 hours in September and October, and finally settling back to 11 hours in the final months of the year. This rhythm of increasing and decreasing daylight not only marks the changing seasons but also enhances the vibrant lifestyle that characterizes this beautiful region.
In Carolina, Puerto Rico, the winds of May bring a pleasant average speed of 4.4 m/s (10 mph), maintaining a steady breeze reminiscent of the preceding months. This gentle wind contrasts with the sharper gusts of July, which peak at 5.3 m/s (12 mph), while the earlier months of the year show a diverse pattern, ranging from a calm 3.8 m/s (9 mph) in April to a brisk 5.2 m/s (12 mph) in February. As the year progresses into the summer, wind speeds rise, creating an inviting atmosphere perfect for beach outings and outdoor activities. Notably, September marks a decline to 3.2 m/s (7 mph), signaling the transition towards a more tranquil wind pattern as the island approaches autumn. Overall, May fits seamlessly into this rhythm, offering a delightful balance of moderate wind that enhances the island's enchanting allure.
Weather in Carolina varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Carolina, focusing on differences in temperature, rainfall, humidity, and UV levels.
May weather tends to be warmer than January, with average temperatures reaching 27°C (80°F) compared to January's 25°C (77°F). While both months share similar minimum temperatures, May boasts a higher maximum temperature of 32°C (90°F) compared to January's 29°C (85°F). Additionally, May experiences more precipitation, with 64 mm (2.5 in) over 13 days, whereas January has only 38 mm (1.5 in) across 12 days. Humidity levels remain comparable, at 75% in May and 76% in January, making both months feel quite humid. For more detailed insights into January weather specifically, visit Carolina weather in January.
When comparing the weather in May and February, we see some notable differences. May typically offers warmer temperatures, with a minimum of 23°C (73°F) and an average of 27°C (80°F), peaking at 32°C (90°F). In contrast, February's temperatures are slightly cooler, with a minimum of 21°C (70°F) and an average of 25°C (77°F), reaching a maximum of 29°C (85°F). Additionally, May experiences higher precipitation, totaling 64 mm (2.5 in) over 13 days, compared to February's 43 mm (1.7 in) over 12 days. However, both months share a consistent humidity level of 75%. For more insights into February's climate, you can explore Carolina weather in February.
In comparing the weather between May and March, both months exhibit warm temperatures and similar humidity levels. May boasts slightly higher averages, with minimum temperatures around 23°C (73°F), an average of 27°C (80°F), and a maximum of 32°C (90°F). In contrast, March's temperatures range from a minimum of 21°C (71°F) to a maximum of 30°C (86°F), offering just a bit cooler feel overall. Precipitation is also quite similar, with May receiving about 64 mm (2.5 in) over 13 days, while March has slightly more rainfall at 67 mm (2.6 in) over 14 days. For more details on March weather specifically, you can check out Carolina weather in March. Overall, both months are characterized by warm, humid conditions with comparable precipitation patterns.
In comparing the weather between April and May, we can see that May tends to be slightly warmer, with minimum temperatures reaching 23°C (73°F) and average temperatures hitting 27°C (80°F), compared to April's minimum of 22°C (71°F) and average of 26°C (78°F). The maximum temperatures are also marginally higher in May, reaching up to 32°C (90°F) as opposed to April's 31°C (88°F). However, May experiences more precipitation, totaling 64 mm (2.5 in) over 13 days, while April has 56 mm (2.2 in) over 10 days. Interestingly, both months share the same humidity level of 75%. For a more detailed look at weather patterns, you can visit Carolina weather in April.
In comparing the weather between May and June, both months exhibit similar average temperatures, with May ranging from a minimum of 23°C (73°F) to a maximum of 32°C (90°F), while June slightly increases to a minimum of 24°C (75°F). The average temperature in both months hovers around 27°C (81°F). However, June sees a slight increase in precipitation, totaling 68 mm (2.7 in) over 15 days, compared to May's 64 mm (2.5 in) across 13 days. Additionally, June has marginally higher humidity at 77%, compared to May's 75%. For more detailed insights, you can explore Carolina weather in June.
In comparing the weather between May and July, we observe that July tends to be slightly warmer, with average temperatures rising from 27°C (80°F) in May to 28°C (82°F) in July. Notably, the minimum temperature in July is also a degree higher at 24°C (76°F) compared to May's 23°C (73°F). Both months experience a maximum temperature of 32°C (90°F), but July sees increased precipitation, accumulating 87 mm (3.4 in) over 18 days, compared to May's 64 mm (2.5 in) over 13 days. Additionally, humidity levels rise from 75% in May to 80% in July, making July feel a bit more sultry. For more details on the weather in Carolina during this month, you can check Carolina weather in July.
When comparing the weather in May and August, both months exhibit warm temperatures, yet August tends to be slightly warmer overall. In May, the temperatures range from a minimum of 23°C (73°F) to a maximum of 32°C (90°F), with an average of 27°C (80°F). In contrast, August sees a minimum of 24°C (76°F) and an average of 28°C (82°F), maintaining the same maximum of 32°C (90°F) as May.
Precipitation levels also rise significantly in August, with 99 mm (3.9 in) of rainfall over 18 days compared to May's 64 mm (2.5 in) across 13 days. Moreover, humidity increases slightly in August to 80%, up from May's 75%. This creates a more humid environment, making it feel warmer despite the similar temperature ranges. For more detailed information, check out Carolina weather in August.
In comparing May and September, both months showcase warm temperatures, with average highs reaching up to 32°C (90°F). However, May tends to be slightly cooler, featuring average temperatures of 27°C (80°F) compared to September's average of 28°C (82°F). May experiences less rainfall, with 64 mm (2.5 in) of precipitation over 13 days, while September sees a significant increase in rainfall, totaling 173 mm (6.8 in) over 23 days. Additionally, humidity levels are relatively high in both months, with September being marginally more humid at 79% compared to May's 75%. For more specific details on the weather conditions in September, you can check Carolina weather in September.
In comparing the weather between May and October, both months exhibit warm temperatures, with May featuring a minimum of 23°C (73°F) and an average of 27°C (80°F), while October has a slightly higher minimum of 24°C (75°F) and the same average temperature of 27°C (81°F). The maximum temperatures remain comparable at 32°C (90°F) in May and 32°C (89°F) in October. However, October experiences significantly more precipitation, with 145 mm (5.7 in) falling over 22 days compared to May's 64 mm (2.5 in) over 13 days. Additionally, October's humidity levels increase slightly to 78% from May's 75%. For a deeper dive into October's climate, you can explore Carolina weather in October.
In comparing the weather of May and November, both months exhibit warm temperatures, with minimums around 23°C (73-74°F) and averages hovering near 27-26°C (80°F). However, May tends to be slightly warmer with maximum temperatures reaching up to 32°C (90°F), while November peaks at 31°C (87°F). Precipitation increases in November to 106 mm (4.2 in) over 16 days, compared to 64 mm (2.5 in) over 13 days in May, indicating a wetter month as the year comes to a close. Humidity levels also see an uptick in November, rising to 78% from May's 75%. For more details on the specific weather patterns during this month, check out Carolina weather in November.
May and December exhibit relatively similar weather patterns, but there are some notable differences. In May, temperatures range from a minimum of 23°C (73°F) to a maximum of 32°C (90°F), with an average of 27°C (80°F). The month also sees 64 mm (2.5 in) of precipitation over 13 days, paired with a humidity level of 75%. December, on the other hand, has a slightly cooler overall temperature range, with a minimum of 23°C (73°F), an average of 26°C (78°F), and a maximum of 31°C (87°F). Precipitation in December is less, totaling 51 mm (2.0 in) over 16 days, and comes with a slightly increased humidity of 76%. For a closer look at December's climate specifics, visit Carolina weather in December.
As May unfolds in Carolina, you can expect warm temperatures that often make this month stand out from the cooler spring months. With average highs around 27°C (80°F) and a pleasant yet humid atmosphere, the daytime heat juxtaposes with mild evenings. While precipitation is noticeable with about 64 mm over roughly 13 days, May typically marks the onset of a wetter period compared to earlier months. This blend of warm weather and frequent rainfall prepares the landscape for the vibrant tropical blooms of summer. For a detailed look at Carolina's weather patterns throughout the year, visit Carolina Climate.