Last updated: January 18, 2025
The climate of Vieques, Puerto Rico, is classified under the Köppen-Geiger system as Am (tropical monsoon), characterized by warm temperatures year-round. The region experiences a minimum temperature of approximately 22°C (72°F) in February, an average of 26°C (80°F), and peaks at 29°C (85°F) during the notably warm month of September. This warm climate, complemented by the tropical environment, significantly influences the island's biodiversity and overall ecological dynamics.
In Vieques, Puerto Rico, temperature patterns exhibit a warm tropical climate with minimal variations throughout the year. The coldest months, January and February, see minimum temperatures around 22-23°C (72-73°F) and average temperatures near 25°C (77°F). As the year progresses into spring and summer, temperatures gradually rise, peaking in August and September with maximums consistently reaching 29°C (85°F). Monthly averages fluctuate between 26°C (79°F) and 28°C (82°F), with the warmest averages occurring in June through September. This stability underscores Vieques’ characteristic warm climate, inviting year-round visitors to experience its lush landscapes and vibrant ecosystems.
Esperanza and Isabel Segunda share similar climate patterns, both experiencing a minimum temperature of 22°C (72°F) in February and a maximum of 29°C (85°F) in September. For a closer look at the monthly temperatures in Esperanza, visit monthly temperatures in Esperanza, and for Isabel Segunda, check out monthly temperatures in Isabel Segunda.
Vieques, Puerto Rico, experiences a distinct precipitation pattern characterized by a marked wet season from May through October. During this period, rainfall increases significantly, with monthly totals peaking in September at 184 mm (7.2 in), accompanied by an average of 24 rainy days. July and August also contribute to the higher precipitation levels, with 139 mm (5.5 in) and 143 mm (5.6 in) respectively. Conversely, the early months of the year, specifically January and February, record lower precipitation rates of 47 mm (1.9 in) and 46 mm (1.8 in), indicating a drier climate typical of the winter season.
The average number of rainy days varies each month, enhancing the tropical ambiance while providing essential moisture to Vieques' diverse ecosystems. Notably, June marks the transition to the wetter months with 87 mm (3.4 in) of rain and 22 rainy days, setting the stage for the monsoon-like conditions that follow. As the year progresses into late autumn, precipitation begins to taper off again, with October and November witnessing 160 mm (6.3 in) and 123 mm (4.9 in), respectively, suggesting a gradual return to drier conditions in the winter months.
In Vieques, Puerto Rico, sunshine duration demonstrates a clear seasonal trend, with hours of sunlight steadily increasing from the winter months into the summer. January starts the year with 259 hours of sunshine, but as the days progress into February and March, the hours rise significantly, reaching 303 and 348 hours, respectively. This upward trajectory continues into late spring, with May achieving the highest peak at 358 hours of sunshine, creating optimal conditions for outdoor activities and tourism.
As summer approaches, sunshine hours remain consistently high, with July and August recording 355 hours and 349 hours respectively. Interestingly, although September marks the transition into autumn, hours of sunshine still sustain a respectable 319 hours, reflecting the lingering warmth. However, a gradual decline occurs as the year closes, with October through December seeing hours hover between 316 and 320 hours. Ultimately, the sunshine patterns in Vieques underscore the island's inviting tropical climate, making it a desirable destination year-round, particularly during the peak summer months.
In Vieques, Puerto Rico, the UV Index presents significant variations throughout the year, with notable peaks during the spring and summer months. January starts off with a UV Index of 9, categorized as very high, indicating a burn time of just 15 minutes. However, from February to June, the trend shifts dramatically, with the UV Index climbing to extreme levels, reaching 11 in February and maxing out at 14 in September. Throughout this period, burn times diminish to 10 minutes, underscoring the urgent need for sun protection and prudence during outdoor activities.
As autumn approaches, the UV Index gradually decreases, although it remains at noticeable levels. In October, the index drops to 12 before settling back to a very high range of 9 by November and December. Despite these lower readings, the prevalence of high UV exposure means that residents and visitors alike should continue to employ sun safety measures throughout the year. This changing landscape highlights the importance of being vigilant about UV radiation, especially in a tropical paradise like Vieques, where sunshine is abundant.
UV Risk Categories
In Vieques, Puerto Rico, daylight duration remains relatively consistent throughout the year, with only minor fluctuations indicative of the subtropical climate. The year begins with 11 hours of daylight in January and February, providing ample opportunity for exploration and outdoor activities. As spring arrives in March, daylight duration increases slightly to 12 hours, a trend that continues through April and May, allowing for longer evenings and more time to enjoy the island's natural beauty.
The peak daylight hours occur during the summer months of June and July, with each month offering a generous 13 hours of sunlight. Following the summer, daylight duration begins to taper off, returning to 12 hours in August and September, before settling back to 11 hours in the latter part of the year from October through December. This predictability in daylight duration enhances how residents and visitors plan their activities year-round, benefiting from the island's vibrant atmosphere while enjoying the lasting warmth of the Caribbean sun.
Esperanza, Puerto Rico experiences a tropical climate characterized by warm temperatures throughout the year. Monthly average temperatures range from 25°C (77°F) in winter to a peak of 28°C (82°F) in summer, with highs reaching up to 29°C (85°F). Rainfall is most significant from July to September, peaking at 179 mm (7.0 in) in September, while annual sunshine averages around 320 hours per month. The combination of warmth and ample sunshine makes Esperanza a vibrant destination. For more details, visit Esperanza climate.
Isabel Segunda, Puerto Rico, experiences a tropical climate characterized by warm temperatures and distinct wet and dry seasons. Monthly average temperatures range from 25°C (77°F) in winter to about 28°C (82°F) in summer, with highs reaching up to 29°C (85°F). Rainfall is heaviest from July to September, peaking in September at 189 mm (7.4 in), while the sunniest months are May and June, with over 350 hours of sunshine. For more detailed information, visit Isabel Segunda climate.
In conclusion, Vieques, Puerto Rico, showcases a captivating climate characterized by warm temperatures, significant rainfall during the wet season, ample sunshine, high UV exposure, and stable daylight duration throughout the year. These climatic features not only contribute to the island's lush ecosystems and rich biodiversity but also make it a popular destination for tourists seeking sun and outdoor activities. Understanding these patterns enables visitors and residents alike to make informed choices about their time spent outdoors, ensuring enjoyable and safe experiences while embracing the vibrant natural beauty that Vieques has to offer.