Last updated: January 18, 2025
Maunabo, Puerto Rico, features a tropical savanna climate classified as Aw under the Köppen-Geiger system. The region enjoys warm temperatures year-round, with January presenting a mild minimum of 21°C (70°F), while the average temperature hovers around 26°C (78°F). The peak warmth is typically experienced in September, when temperatures can soar to a maximum of 30°C (86°F). This climatic profile not only supports a rich diversity of flora and fauna but also influences local weather patterns, making it a unique study of tropical weather dynamics.
The temperature patterns in Maunabo, Puerto Rico, showcase a warm tropical climate with only slight variations throughout the year. From January to March, temperatures remain relatively stable, with minimal fluctuations in minimums around 21-22°C (70-71°F) and averages hovering at 24°C (76°F). As spring transitions into summer, particularly from April to June, temperatures gently rise, with averages increasing to 25-26°C (77-79°F) and maximums reaching 28-29°C (82-84°F). The warmest months are July through September, where both average and maximum temperatures peak at 27-30°C (81-86°F). Following this, a gradual cooling trend occurs in October and November, returning to preceding averages and minimums of 26°C (79°F) and 23°C (73°F) by December. This seasonal rhythm reflects the region's consistent warmth, characteristic of its tropical savanna climate.
In the region, the climate remains consistently warm throughout the year, with a minimum temperature of 21°C (70°F) in January and a maximum of 30°C (86°F) in September for Maunabo, Emajagua, and Palo Seco. For detailed monthly temperature records, you can refer to the links for each location: monthly temperatures in Maunabo, monthly temperatures in Emajagua, and monthly temperatures in Palo Seco.
Precipitation in Maunabo, Puerto Rico, exhibits a distinct seasonal pattern, with the wettest months typically occurring from July to September. During this period, the region experiences significant rainfall, peaking in September with an average of 190 mm (7.5 in) over 27 days. July and August also contribute substantial amounts, with 139 mm (5.5 in) and 134 mm (5.3 in), respectively. This wet season is crucial for local ecosystems, nourishing the lush vegetation and supporting the diverse wildlife that thrives in the tropical climate.
In contrast, the early months of the year generally receive less rainfall, with January to March seeing averages between 48 mm (1.9 in) and 64 mm (2.5 in). The month of May marks a transition into the wetter season, with precipitation increasing to 97 mm (3.8 in). Overall, the annual precipitation totals reveal a pattern of variability, with drier conditions from January to April and progressively wetter months from May through November. This seasonal distribution underscores the importance of understanding precipitation trends for water resource management and agricultural practices in the region.
In Maunabo, Puerto Rico, sunshine duration exhibits a clear seasonal trend, with hours of sunshine steadily increasing as the year progresses. Beginning in January with 260 hours of sunshine, the region gradually experiences brighter days, reaching notable peaks by mid-year. The transition into spring is marked by an upward trajectory, as February sees an increase to 305 hours and March jumps to 347 hours. By May, sunshine duration reaches its zenith at 359 hours, illustrating the abundant daylight typical of the late spring and early summer months, which are ideal for outdoor activities and tourism.
As summer transitions into fall, sunshine hours begin to gradually decline, yet remain substantial. The months of June and July maintain high sunshine totals of 345 hours and 355 hours, respectively, while August records a slight decrease to 351 hours. The downward shift continues into September and October—still bright months with 317 hours and 315 hours of sunshine—before concluding the year in slightly cooler months of November and December at 303 hours and 320 hours. This seasonal analysis highlights Maunabo’s consistent sunshine, with summer emerging as a particularly radiant period, contributing to the area’s vibrant landscapes and the experiences it offers to residents and visitors alike.
The UV Index in Maunabo, Puerto Rico, reflects the region's intense sun exposure throughout the year, with values consistently indicating very high to extreme levels. In January, the UV Index starts at 9, categorized as very high, suggesting a burn time of just 15 minutes for unprotected skin. The situation escalates in the following months; notably, February experiences a significant rise to 11, and by March, the index hits 13, categorizing the exposure as extreme with a reduced burn time of just 10 minutes. This trend continues from April to July, where the UV Index stabilizes at 13, emphasizing that precautions against sunburn are essential during these months.
As summer unfolds into early fall, Maunabo sees a peak UV Index of 14 in September—indicating extreme exposure—and maintaining high levels into October with an index of 12. The months of November and December see a slight decrease back to a UV Index of 9, categorized as very high, with burn times returning to 15 minutes. This consistent pattern of high UV levels throughout the year underscores the importance of sun safety measures, like wearing sunscreen and protective clothing, especially in the months characterized by extreme solar radiation.
UV Risk Categories
In Maunabo, Puerto Rico, daylight duration exhibits a relatively stable pattern throughout the year, with minor fluctuations that reflect the changing seasons. Both January and February experience approximately 11 hours of daylight, providing shorter days typical of winter. As spring approaches, daylight increases to 12 hours in March and continues to hold steady through April and May, marking a transition into longer days and more opportunity for outdoor activities. This early part of the year allows residents and visitors alike to enjoy the vibrant landscapes illuminated by extended sunlight.
As summer sets in during June and July, daylight reaches its peak at 13 hours, enhancing the region's opportunities for leisure and tourism under the sun. However, as August rolls into fall, daylight begins to decrease again, settling back to 12 hours and remaining consistent through September and October. The daylight duration then reverts to 11 hours in November and December, completing a yearly cycle that reflects the natural rhythm of the tropics. This predictable pattern of daylight not only influences local activities but also contributes to Maunabo’s rich biodiversity, as various ecosystems rely on consistent sunlight for their growth and health.
Emajagua, Puerto Rico, experiences a tropical climate characterized by warm temperatures and varied precipitation throughout the year. Average temperatures range from 24°C (76°F) in the cooler months to around 27°C (81°F) during the warmer summer months. Rainfall peaks in September at 190 mm (7.5 in), contributing to a wet season that spans from May to October, while sunshine hours remain plentiful, reaching up to 359 hours in May. For more detailed climate information, visit Emajagua climate.
Maunabo, Puerto Rico experiences a tropical climate with warm temperatures year-round. Average monthly temperatures range from about 24°C (76°F) in winter to 27°C (81°F) in summer, with maximums peaking at 30°C (86°F) in September. Precipitation is highest from May to October, with September receiving around 190 mm (7.5 in) of rain. Despite the rainfall, the area enjoys ample sunshine, peaking at 359 hours in May. For more details, visit Maunabo climate.
Palo Seco, Puerto Rico enjoys a tropical climate characterized by warm temperatures year-round, with average highs ranging from 24°C (76°F) in January to 29°C (84°F) in May. The area experiences a notable amount of rainfall, peaking in September with 190 mm (7.5 in) while January is the driest month at 48 mm (1.9 in). Sunshine is abundant, especially during the spring and summer months, with March and April boasting over 340 hours of sunshine. Overall, this coastal region offers a vibrant climate suitable for various outdoor activities throughout the year. For more detailed information, visit Palo Seco climate.
In conclusion, Maunabo, Puerto Rico, presents a unique climate characterized by warm temperatures, significant sunshine, high UV exposure, and consistent daylight duration throughout the year. With an average temperature range that supports lush tropical vegetation and vibrant wildlife, coupled with substantial sunshine hours, Maunabo is a haven for outdoor enthusiasts. However, the high UV Index during the summer months emphasizes the need for appropriate sun protection to ensure the safety of residents and visitors alike. The stable daylight patterns facilitate a range of activities, enhancing both the cultural and natural experiences of the region. Collectively, these climatic factors underscore the importance of understanding and adapting to Maunabo's environment, contributing to both its ecological and recreational richness.