Last updated: January 18, 2025
Arecibo, Puerto Rico, is characterized by a tropical monsoon climate, designated by the Köppen-Geiger classification as Am. The region experiences a moderate temperature range throughout the year, with a minimum of 18°C (65°F) in January and an average temperature of 26°C (79°F). The warmth peaks in May, reaching a maximum of 33°C (91°F). This climate profile underscores Arecibo's warm and inviting atmosphere, making it a unique environment for both residents and visitors alike.
Arecibo, Puerto Rico, showcases a distinct temperature pattern throughout the year, characterized by relatively stable conditions that reflect its tropical monsoon climate. The year begins with cooler temperatures in January, featuring a minimum of 18°C (65°F) and an average of 24°C (76°F). As the months progress towards May, temperatures gradually rise, reaching an average high of 33°C (91°F) during this peak month. The summer months of June through September maintain warm averages around 27°C (81°F), with maximums consistently at 32°C (90°F). A slight cooling trend occurs in the fall, with November and December returning to averages of around 25°C (77°F), yet temperatures remain comfortably warm, ensuring that Arecibo retains its inviting tropical feel year-round.
Bajadero, Animas, and Arecibo experience similar temperature ranges throughout the year, with a minimum of 18°C (65°F) in January and a maximum of 32°C (91°F) in May. For detailed monthly temperatures, you can explore the links for each location: monthly temperatures in Bajadero, monthly temperatures in Animas, and monthly temperatures in Arecibo.
Arecibo, Puerto Rico, experiences a diverse precipitation pattern throughout the year, characterized by distinct wet and dry periods. The rainy season typically begins in March, with precipitation increasing from 85 mm (3.3 in) to a peak of 201 mm (7.9 in) in September. January and February are relatively dry months, receiving 41 mm (1.6 in) and 46 mm (1.8 in) of rain, respectively. However, the precipitation levels surge significantly during the summer and early autumn months, particularly in September and October, when Arecibo averages around 158 mm (6.2 in) and 201 mm (7.9 in), marking a critical time for rainfall in the region.
The number of rainy days also reflects this seasonal trend, with a gradual increase as the summer progresses. On average, Arecibo experiences around 11 to 12 rainy days in January and February, while this number escalates to 23 days in both September and October. The presence of heavy rainfall during these months reinforces the tropical environment of Arecibo, contributing to its lush vegetation and vibrant ecosystems. Despite the high precipitation levels, the distribution throughout the year allows for brief dry spells, ensuring a balance that supports both local agriculture and water resources.
Arecibo, Puerto Rico, enjoys an abundance of sunshine throughout the year, with clear trends reflecting changing seasons. Beginning in January, the region receives 258 hours of sunshine, which gradually increases as temperatures rise toward summer. The peak sunshine months occur from May to July, showcasing an impressive average of 358 hours in May and 357 hours in July. This surge during the late spring and early summer months not only enhances outdoor activities but also plays a vital role in supporting the lush tropical environment of the region.
As summer transitions into fall, sunshine hours remain relatively stable but show a slight decline, with September and October averaging around 312 and 313 hours, respectively. Arecibo continues to receive substantial sunlight in the cooler months, such as December with 319 hours, but it is notable that February and March mark a particularly bright period, with 305 and 346 hours respectively. These variations in sunshine duration highlight the region's ability to enjoy sunny days year-round, making Arecibo a favorable destination for those seeking warmth and outdoor experiences.
Arecibo, Puerto Rico, experiences notably high ultraviolet (UV) exposure throughout the year, with the UV Index fluctuating but consistently remaining in the higher categories. The year begins in January with a UV Index of 9, categorized as very high, indicating a burn time of just 15 minutes. This trend escalates dramatically in February, where the UV Index peaks at 11 and continues to rise to 14 in May, representing extreme exposure levels. Such conditions necessitate diligent sun protection measures, particularly for those spending extended time outdoors during the spring and early summer months.
Throughout the summer, the UV Index stabilizes at 13, reflecting the ongoing risk for skin damage if precautions are not taken. Even as the year transitions into fall and winter, the UV Index remains substantial; October holds a value of 12, while November and December drop slightly to 9 and 8, respectively, but still indicate very high exposure levels. This persistent intensity underscores the importance of awareness regarding sun safety in Arecibo, where year-round vigilance is essential to prevent harmful effects from UV radiation.
UV Risk Categories
Arecibo, Puerto Rico, benefits from a relatively stable daylight duration throughout the year, averaging between 11 and 13 hours of sunlight per day. The year begins with 11 hours of daylight in January and February, setting a consistent foundation as the island transitions into spring. By March, daylight begins to increase, reaching 12 hours and remaining consistent through April and May. This gradual extension of daylight hours enhances opportunities for outdoor activities and exploration, reflecting the region's vibrant tropical environment.
As summer arrives in June and July, daylight peaks at 13 hours, providing ample time for residents and visitors to enjoy the warm sun. Following this peak, daylight duration begins to decrease slightly, with 12 hours in August and September. By October, November, and December, the duration returns to 11 hours, completing the cycle for the year. This pattern reinforces Arecibo's characteristic climate, allowing for enjoyable daytime experiences while illustrating the rhythmic changes in daylight that accompany the shifting seasons.
The climate in Animas, Puerto Rico, is characterized by warm temperatures throughout the year, with average highs ranging from 24°C (76°F) in January to a peak of 32°C (91°F) during the summer months. Rainfall is notable, particularly in September with 205 mm (8.1 in), while the dry season typically falls between December and April. Sunshine hours are abundant, peaking at 359 hours in May and July. Overall, Animas enjoys a tropical climate with a balance of warm weather and substantial precipitation, making it a vibrant location for both residents and visitors. For more details, visit Animas climate.
Arecibo, Puerto Rico enjoys a tropical climate characterized by warm temperatures year-round, with averages ranging from 24°C (76°F) in winter to 27°C (81°F) during the summer months. Precipitation varies significantly, peaking in September with 205 mm (8.1 in) and marking the wettest month, while January is the driest with 41 mm (1.6 in). Sunshine is abundant, especially from March to May, where hours exceed 350. For more detailed insights, visit Arecibo climate.
Bajadero, Puerto Rico, features a tropical climate characterized by warm temperatures year-round, with average highs ranging from 24°C (76°F) in January to 27°C (81°F) from June to September. The rainy season peaks in September, which sees considerable precipitation of 205 mm (8.1 in), while January and December are the driest months. Sunshine is abundant, with May averaging the most hours at 359, creating ideal conditions for outdoor activities. For more detailed information, visit Bajadero climate.
The climate in La Alianza, Puerto Rico, features warm temperatures throughout the year, with average monthly highs ranging from 25°C (76°F) in January to 28°C (82°F) in August. Rainfall is more pronounced from May to October, peaking in September with 195 mm (7.7 in) of precipitation. This period also sees the highest humidity and lower sunshine hours, while December offers a more temperate climate with 44 mm (1.7 in) of rain and 319 hours of sunshine. The region enjoys up to 356 hours of sunshine in May, making it an appealing destination for outdoor activities. For detailed weather insights, visit La Alianza climate.
Sabana Hoyos, Puerto Rico, experiences a tropical climate characterized by warm temperatures and varying precipitation throughout the year. Average temperatures range from about 25°C (76°F) in January to a peak of 28°C (82°F) in August, with maximums occasionally reaching 33°C (91°F) in May. Rainfall is heaviest from September to November, with September recording an average of 195 mm (7.7 in), while the dry months exhibit significantly less precipitation. The region enjoys ample sunshine, peaking in May with 356 hours. For more details, visit Sabana Hoyos climate.
In conclusion, Arecibo, Puerto Rico, presents a dynamic and inviting climate characterized by warm temperatures, substantial sunlight, and high UV exposure throughout the year. With a notable increase in sunshine and daylight duration during the summer months, the region fosters an environment that is ripe for outdoor activities and exploration. However, residents and visitors must remain vigilant about sun safety due to the extreme UV Index readings, particularly in the spring and summer. Overall, Arecibo's climate not only enhances its natural beauty but also underscores the importance of environmental awareness and responsible outdoor practices to fully enjoy the richness that this tropical destination has to offer.