Last updated: August 31, 2025
May in Basseterre, Saint Kitts and Nevis offers a delightful tropical climate, with maximum temperatures reaching around 28°C (82°F) and an average of 26°C (79°F). The month experiences a minimum temperature of 24°C (75°F), providing warm evenings perfect for outdoor enjoyment. While precipitation amounts to 53 mm (2.1 in) over roughly 14 days, the humidity level hovers around a comfortable 79%, creating a lush environment. Visitors can expect a mix of sunny days and refreshing showers, making May a vibrant time to explore this enchanting Caribbean destination.
In May, Basseterre, Saint Kitts and Nevis, embraces the warmth of the approaching summer, with temperatures reflecting a delightful transition. The month begins with a minimum of 24°C (75°F), gradually rising to an average of 26°C (79°F), and peaking at a pleasant 28°C (82°F). This slight upward trend from April indicates a comfortable climate, perfect for enjoying the island's beautiful beaches and vibrant outdoor activities. As the month unfolds, the temperatures herald the arrival of summer, providing a warm, inviting atmosphere that attracts both residents and visitors. With each passing day, the tropical sun shines brighter, making May an ideal time to explore all the vivid hues of this Caribbean paradise.
May marks a noticeable uptick in precipitation for Basseterre, Saint Kitts and Nevis, with 53 mm (2.1 in) of rain falling over 14 days. This increase follows the wetter April, reflecting the transition into the early wet season as summer approaches. The rain during May contributes to the lush landscapes the region is known for, setting the stage for even higher levels of precipitation in the upcoming months. As the year progresses, June typically sees a slight decrease in rainfall with 51 mm (2.0 in) expected, yet the trend indicates a pattern of increasing humidity and moisture leading into the peak of the rainy season. Overall, May encapsulates the burgeoning vibrancy of the Caribbean climate, as the islands embrace the transformative power of the rains.
As May arrives in Basseterre, Saint Kitts and Nevis, humidity levels begin to rise, reaching 79% this month. This slight increase from 78% in April marks the beginning of a humid trend that continues throughout the summer months. Following May, June sees a further uptick to 81%, paving the way for July's peak at 83%. This progressive climb reflects the tropical climate's characteristic warmth and moisture, providing a lush backdrop to the island's stunning landscapes. As the year progresses, humidity gradually stabilizes, dipping to 80% in September and settling back to 79% by November, illustrating a rhythmic ebb and flow typical of this idyllic Caribbean setting.
In May, Basseterre, Saint Kitts and Nevis experiences an extreme UV Index of 13, similar to both April and the upcoming months. With a burn time of just 10 minutes, it’s crucial for residents and visitors alike to take necessary precautions to protect their skin from harmful UV radiation. This trend of extreme UV levels persists through the summer months, highlighting the importance of sun safety as temperatures rise. As you enjoy the beautiful Caribbean sun, be sure to stay informed and protected. For more details, visit the Basseterre UV Index.
UV Risk Categories
May in Basseterre, Saint Kitts and Nevis, is truly a gem, basking in an impressive 358 hours of sunshine. This delightful month continues the upward trend of increasing daylight, following the already luminous April, which recorded 347 hours. As spring gives way to summer, May stands out not only for its warmth but also for its brightness, outshining both the preceding months and heralding the vibrant sunshine of June. A peak of 362 hours awaits just around the corner in July, but May holds its own, making it a splendid time for outdoor adventures and soaking in the radiant Caribbean vibes. With this generous sunshine, visitors and locals alike are encouraged to embrace the beautiful weather, creating memories that shine just as brightly as the sun.
In Basseterre, Saint Kitts and Nevis, the likelihood of sunny weather in May stands at 53%, indicating a moderate chance for sunshine during this month. As you glance at the surrounding months, a notable trend emerges: January starts the year with a 57% chance of sun, which peaks in February at 72% before gradually declining to April's 46%. Following this dip, May offers a slight resurgence, suggesting that while the sun may not shine as brightly, it's still a favorable time for outdoor activities. This pattern hints at the island's shifting weather, with sunnier days returning later in the year, particularly as September sees a 60% chance of sunlight. Overall, May presents a balanced opportunity for sun-seekers, nestled between the extremes of early and late spring conditions.
In Basseterre, Saint Kitts and Nevis, the progression of daylight duration throughout the year unveils a captivating seasonal rhythm. January and February start with a steady 11 hours of daylight, inviting gradual changes as March and April usher in an extra hour, bringing the total to 12 hours. This trend continues into May, where the daylight remains consistent at 12 hours before June and July elevate the experience to 13 hours, maximizing outdoor enjoyment during the peak of summer. As the year unfolds, daylight gradually retreats through August and September, settling back at 12 hours, before returning to the initial 11 hours in the closing months of the year. This natural ebb and flow of daylight not only highlights the beauty of nature but also creates an inviting atmosphere for both residents and visitors.
In May, Basseterre experiences a delightful blend of warmth and breezy conditions, with an average wind speed of 7.5 m/s (17 mph). As spring transitions into summer, the winds remain fairly consistent, slightly higher than in April but not as robust as in the earlier months of the year. This mild increase from 7.5 m/s reflects a pattern where the winds typically begin to gain strength heading into the summer, often peaking in June and July. Such gentle yet invigorating breezes make May an ideal time for outdoor activities, allowing residents and visitors to enjoy the stunning landscapes of Saint Kitts and Nevis under a refreshing sky.
Weather in Basseterre varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Basseterre, focusing on differences in temperature, rainfall, humidity, and UV levels.
May and January in Basseterre present relatively similar weather patterns, though there are notable differences. In May, temperatures range from a minimum of 24°C (75°F) to a maximum of 28°C (82°F), while January sees slightly cooler temperatures, with a minimum of 23°C (73°F) and a maximum of 27°C (81°F). Precipitation is higher in May, totaling 53 mm (2.1 in) over 14 days, compared to January's 35 mm (1.4 in) over 13 days. Humidity in May is slightly higher at 79%, compared to January's 77%. Overall, May tends to be a bit warmer and wetter than January, making it a more humid month. For a more detailed look at January weather, visit Basseterre weather in January.
In comparing the weather between May and February, May generally experiences slightly warmer temperatures, with a minimum of 24°C (75°F) and an average of 26°C (79°F), while February sees a minimum of 22°C (72°F) and an average of 25°C (77°F). Precipitation levels are higher in May, with 53 mm (2.1 in) over 14 days, compared to February's 35 mm (1.4 in) across 12 days. Humidity is also marginally higher in May at 79%, compared to February's 77%. For a more detailed look at February weather, you can visit Basseterre weather in February.
In comparing the weather of May and March, May tends to be slightly warmer with average temperatures ranging from 24°C (75°F) to a maximum of 28°C (82°F), while March sees a narrower range from 22°C (73°F) to 26°C (80°F). May also experiences more precipitation, with 53 mm (2.1 in) falling over 14 days, compared to March's 27 mm (1.1 in) over 10 days. Humidity levels are similar, with May at 79% and March at 77%, making both months feel quite tropical. For more detailed insights on March weather, you can check Basseterre weather in March.
In comparing the weather of April and May, we observe that May tends to be slightly warmer, with average temperatures ranging from a minimum of 24°C (75°F) to a maximum of 28°C (82°F), compared to April's range of 23°C (74°F) to 27°C (81°F). Additionally, May experiences more rainfall, with a total precipitation of 53 mm (2.1 in) over 14 days, compared to April's 41 mm (1.6 in) across 13 days. Both months have similar humidity levels, with May at 79% and April at 78%. For a more detailed view of April's conditions, you can check Basseterre weather in April.
May and June present similar weather patterns, but with some notable differences. In May, temperatures range from a minimum of 24°C (75°F) to a maximum of 28°C (82°F), with an average temperature of 26°C (79°F). The month experiences about 53 mm (2.1 inches) of precipitation over 14 days and boasts a humidity level of 79%. In contrast, June sees slightly warmer temperatures, with a minimum of 25°C (77°F) and a maximum of 28°C (83°F), averaging 27°C (80°F). Additionally, June has marginally less rainfall, totaling 51 mm (2.0 inches) over 12 days, while humidity rises slightly to 81%. For a more detailed outlook, check out Basseterre weather in June.
May and July feature warm temperatures, with May averaging around 26°C (79°F) and July slightly warmer at 27°C (81°F). Both months experience high humidity levels, with May at 79% and July increasing to 83%. However, July sees a bit more precipitation, with 78 mm (3.1 in) over 18 rainy days, compared to May's 53 mm (2.1 in) over 14 days. For more detailed information, you can check out Basseterre weather in July.
When comparing the weather in May and August, we see that both months have warm temperatures, with May averaging around 26°C (79°F) and August slightly warmer at 27°C (82°F). May sees a minimum temperature of 24°C (75°F) and a maximum of 28°C (82°F), while August's temperatures range from a minimum of 25°C (77°F) to a maximum of 29°C (84°F).
However, August experiences significantly more rainfall, with 101 mm (4.0 in) across 16 days compared to May's 53 mm (2.1 in) over 14 days, leading to higher humidity levels of 82% in August versus May's 79%. For further details on the climate during this period, you can refer to Basseterre weather in August.
In comparison to May, September tends to be slightly warmer, with average temperatures ranging from a minimum of 25°C (78°F) to a maximum of 29°C (84°F), compared to May's range of 24°C (75°F) to 28°C (82°F). However, September also experiences significantly higher precipitation, with 146 mm (5.7 in) of rain over about 20 days, whereas May sees only 53 mm (2.1 in) over 14 days. Additionally, the humidity remains quite similar, with both months hovering around 79-80%. For more details on the conditions during September, you can check Basseterre weather in September.
May and October exhibit similar warmth, with October slightly edging out in temperature averages; May has a minimum of 24°C and an average of 26°C, while October starts at 25°C and averages at 27°C. Both months experience high humidity levels of 79%, creating a consistently tropical feel. However, October is notably wetter, receiving 112 mm of precipitation over 18 days compared to May’s 53 mm over 14 days. This increase in rainfall can lead to a more vibrant landscape in October, making it a unique time to experience the region. For more detailed insights, you can check Basseterre weather in October.
May and November both showcase warm temperatures, with May experiencing a slightly lower average temperature of 26°C (79°F) compared to November's average of 27°C (80°F). While the maximum daily temperatures remain similar, the amount of precipitation increases from 53 mm (2.1 in) in May to 94 mm (3.7 in) in November, along with a rise in the number of rainy days from 14 to 17. Despite the increased rainfall in November, humidity levels remain consistent at 79% in both months, creating a tropical atmosphere. For a detailed look at the weather in November, you can check this link: Basseterre weather in November.
In both May and December, the weather in Basseterre showcases warm temperatures, with minimums and maximums consistently around 24°C (75°F) and 28°C (82°F) respectively, maintaining an average of 26°C (79°F) for both months. However, May experiences slightly higher precipitation, totaling 53 mm (2.1 in) over 14 days, compared to December's 50 mm (2.0 in) spread over 17 days, indicating more frequent rain during the latter month. Humidity levels are comparable, with May at 79% and December marginally lower at 78%. For more detailed insights into December’s climate, check Basseterre weather in December.
As May arrives in Basseterre, the weather begins to warm up with an average temperature that hovers around a pleasant 26°C (79°F). While the sun shines brightly, the month also sees an increase in rainfall, marking a shift as the island transitions into the wetter season. Humidity levels rise, creating a lush, tropical atmosphere that’s characteristic of this time of year. Compared to the cooler and drier months preceding it, May offers a unique blend of warmth and moisture that enriches the landscape. Those looking to explore the vibrant flora and fauna will find this an enchanting time to visit. For more detailed insights into the region's weather patterns, check out Basseterre Climate.