Last updated: August 31, 2025
December in Isabel Segunda, Puerto Rico offers a delightful tropical experience, with average temperatures hovering around 26°C (79°F), peaking at a maximum of 28°C (83°F) and dipping to a minimum of 24°C (75°F). While this picturesque month welcomes visitors with its warm climate, it also brings a fair share of rain, accumulating about 74 mm (2.9 in) over 22 days. The humidity level stands at a substantial 76%, contributing to the island's lush beauty and vibrant landscapes. Whether you're exploring charming streets or relaxing on a sun-kissed beach, December promises a captivating blend of warmth and occasional refreshing showers.
In December, Isabel Segunda, Puerto Rico experiences pleasant temperatures that herald the arrival of winter warmth. With minimums averaging around 24°C (75°F) and maxima reaching up to 28°C (83°F), it's a time when the island enjoys a mild climate that remains consistent throughout the holiday season. The average temperature hovers at 26°C (79°F)—a slight increase from the preceding months, indicating a gentle transition into winter. This trend of inviting warmth makes December an ideal time for outdoor adventures, allowing visitors to bask in the sun while enjoying the vibrant atmosphere of the island. Whether you’re strolling on the beach or sipping a cool drink, Isabel Segunda offers a delightful retreat from the chill of winter elsewhere.
In Isabel Segunda, Puerto Rico, December experiences a mild precipitation total of 74 mm (2.9 in), marking a noticeable decrease compared to the wettest months of the year, particularly September and October. Although December sees a significant reduction in rainfall, with an average of 22 days of precipitation, this is consistent with the trend of late autumn transitioning into drier winter months. The overall pattern reflects a shift from the earlier, more intense summer rains, particularly evident in July and August, where precipitation exceeds 140 mm (5.5 in). As the year concludes, the island embraces a slightly drier spell, preparing for the change in seasons while still holding onto the lush greenery nourished by the preceding months.
As December arrives in Isabel Segunda, Puerto Rico, humidity levels settle at 76%, marking a slight drop from the peaks of 80% observed in July and August. This month retains a comfortable balance, maintaining similar humidity levels to those in January and February, where figures hover around 75-76%. Interestingly, after a gradual rise during the summer months, which saw levels peak in July, the fall season brings a subtle decline, reflecting the island's transition from the humid warmth of summer to the cooler, drier winter months. The overall trend suggests a stable climate where humidity remains consistently high throughout the year, yet December's figures comfortably align with the annual averages, offering a refreshing reprieve as the year draws to a close.
In Isabel Segunda, Puerto Rico, the UV Index reveals a distinct trend as the year progresses, reflecting the region's tropical climate. While December marks a slight decrease with a UV Index of 8, placing it in the very high exposure category, it follows months of consistently high levels, peaking at 14 in September. Throughout the late spring and summer, the UV Index hovers between 12 and 13, indicating an extreme risk of harm from unprotected sun exposure, with a burn time of only 10 minutes being crucial for sun safety. In contrast, the beginning and end of the year, specifically January and November, see more moderate levels at 9, requiring about 15 minutes before a burn might occur. For a deeper understanding of how these UV readings can impact your sun safety practices, check the detailed information at Isabel Segunda UV Index.
UV Risk Categories
In Isabel Segunda, Puerto Rico, December stands out with 320 hours of sunshine, concluding the year on a bright note. As temperatures cool, this month reflects a slight increase from the previous November's 302 hours, maintaining a steady glow during the holiday season. The sunshine hours this month are part of a broader trend observed throughout the year, with the region peaking in May with an impressive 357 hours. After a slight dip in the summer months, December's sun gives residents and visitors a delightful dose of warmth as they enjoy the festive atmosphere. With sunshine hours consistently high from February through July, Isabel Segunda promises a vibrant escape for anyone seeking a blend of cool breezes and bright days during the winter months.
In Isabel Segunda, Puerto Rico, the trend of sunny weather in December is quite promising, with a 66% chance of clear skies. This statistic is notably higher than the probabilities seen earlier in the year, such as June (23%) and July (45%), indicating a significant shift towards brighter days as the year comes to a close. While December's sun likelihood is on par with the favorable conditions of November (63%), it stands out when compared to the dip in April (48%) and the generally cloudier months of summer. As winter approaches, residents and visitors alike can anticipate a delightful blend of warmth and sunshine to enjoy during this festive season.
In December, Isabel Segunda, Puerto Rico, enjoys about 11 hours of daylight, a figure consistent with both January and February. As the year progresses from the early months into spring, daylight begins to increase, peaking at 13 hours during the summer months of June and July. Following this seasonal high, daylight starts to gradually decline again, returning to 11 hours by early winter. This cyclical pattern reflects the island's subtropical climate, where longer days in summer give way to slightly shorter days as winter approaches, making December a month where the warmth of the sun is still cherished, even as daylight begins to dwindle.
As December unfolds in Isabel Segunda, Puerto Rico, the average wind speed reaches 6.9 m/s (equivalent to 15 mph), marking a refreshing shift in the month’s breezy character. This increase offers a pleasant contrast to the calmer winds experienced in September and October, which dipped to their lowest points of 4.9 m/s (11 mph) and 5.3 m/s (12 mph) respectively. Notably, December's winds are slightly stronger than November's 5.7 m/s (13 mph), contributing to the island's vibrant atmosphere as it moves into the new year. Throughout the year, the winds typically fluctuate between the 5 to 7.8 m/s range, with the summer months of July and August consistently experiencing elevated speeds. Thus, December not only wraps up the year but also invites a revitalizing breeze that locals and visitors alike enjoy in this picturesque coastal setting.
Weather in Isabel Segunda varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Isabel Segunda, focusing on differences in temperature, rainfall, humidity, and UV levels.
In December, the weather typically sees a minimum temperature of 24°C (75°F), with an average of 26°C (79°F) and a maximum reaching 28°C (83°F). This month experiences higher precipitation, totaling 74 mm (2.9 in) across 22 days, all while maintaining a consistent humidity level of 76%.
In contrast, January enjoys slightly cooler temperatures, with a minimum of 23°C (73°F), an average of 25°C (78°F), and a maximum of 27°C (80°F). Precipitation decreases to 51 mm (2.0 in) over 17 days, but the humidity remains steady at 76%.
For a more detailed look at the weather patterns, you can check out Isabel Segunda weather in January.
In December, the weather tends to be slightly warmer than in February, with average temperatures ranging from a minimum of 24°C (75°F) to a maximum of 28°C (83°F). This month also experiences higher precipitation levels, averaging 74 mm (2.9 in) over 22 days, alongside a humidity of 76%. In contrast, February sees slightly cooler temperatures, with averages from 22°C (72°F) to a maximum of 27°C (80°F). Precipitation decreases to 51 mm (2.0 in) over 20 days, and humidity drops marginally to 75%. For more detailed insights, you can check Isabel Segunda weather in February.
In December, temperatures in Isabel Segunda range from a minimum of 24°C (75°F) to a maximum of 28°C (83°F), averaging around 26°C (79°F). The month experiences 74 mm (2.9 in) of precipitation over approximately 22 days, with humidity levels at 76%. In contrast, March sees slightly cooler temperatures, with a minimum of 23°C (73°F) and a maximum of 27°C (80°F), averaging 25°C (77°F). Precipitation decreases to 64 mm (2.5 in) over about 20 days, accompanied by a slight drop in humidity to 74%. For more detailed information, you can visit Isabel Segunda weather in March.
In December, temperatures in Isabel Segunda range from a minimum of 24°C (75°F) to a maximum of 28°C (83°F), with an average around 26°C (79°F). The month experiences relatively high humidity at 76% and receives about 74 mm (2.9 in) of precipitation over 22 days. In contrast, April sees slightly cooler temperatures, with a minimum of 23°C (73°F) and a maximum of 27°C (81°F), averaging 25°C (78°F). Precipitation decreases to 60 mm (2.4 in) spread over 17 days, and humidity remains quite consistent at 75%. For more detailed information, you can check Isabel Segunda weather in April.
In both December and May, the weather remains quite similar, with temperatures ranging from a minimum of 24°C (75°F) to a maximum of 28°C (83°F), and an average of 26°C (79°F). However, May tends to be slightly wetter, with a total precipitation of 85 mm (3.4 in) compared to December's 74 mm (2.9 in). Additionally, both months see rain on about 22 days, but May has a marginally lower humidity level at 75%, compared to December's 76%. For a detailed overview of the weather in Isabel Segunda during May, you can check Isabel Segunda weather in May.
In December, temperatures typically range from a minimum of 24°C (75°F) to a maximum of 28°C (83°F), with an average temperature of 26°C (79°F). The month sees about 74 mm (2.9 in) of precipitation spread over 22 days, and humidity levels hover around 76%. In contrast, June experiences slightly warmer weather, with temperatures ranging from 24°C (76°F) to 29°C (84°F) and an average of 27°C (81°F). Rainfall in June increases to 94 mm (3.7 in) over 23 days, with humidity slightly higher at 77%. For more detailed weather information, you can check Isabel Segunda weather in June.
In December, the weather features a pleasant average temperature of 26°C (79°F), with daily humidity levels at 76% and a relatively low precipitation of 74 mm (2.9 in) over 22 days. In contrast, July is slightly warmer, with an average temperature of 27°C (81°F) and higher humidity at 80%. However, it also brings significantly more rainfall, totaling 148 mm (5.8 in) and occurring on 25 days. For more details, you can check Isabel Segunda weather in July.
When comparing December and August weather, December tends to be slightly cooler with average temperatures ranging from a minimum of 24°C (75°F) to a maximum of 28°C (83°F), while August has a higher average temperature ranging from 25°C (77°F) to 29°C (85°F). Precipitation also contrasts significantly; December receives 74 mm (2.9 in) over 22 days, whereas August sees a much higher total of 151 mm (5.9 in) over 25 days, contributing to a more humid atmosphere in August with humidity levels reaching 80% compared to December's 76%. For a more detailed look at the weather during this period, you can check Isabel Segunda weather in August.
In comparing the weather of September and December, we see notable differences in temperature and precipitation patterns. December features slightly cooler temperatures, with a minimum of 24°C (75°F) and an average high of 28°C (83°F), while September boasts a minimum of 25°C (78°F) and an average maximum of 29°C (85°F). Precipitation is more significant in September, where it totals 189 mm (7.4 in) over 25 days, compared to December's 74 mm (2.9 in) over 22 days. Humidity remains relatively high in both months, with December at 76% and September reaching 79%. For more detailed information about September weather in Isabel Segunda, you can visit Isabel Segunda weather in September.
In comparing the weather between October and December, we see that December features slightly cooler temperatures, with a minimum of 24°C (75°F) and a maximum of 28°C (83°F), while October holds a minimum of 25°C (77°F) and reaches up to 29°C (85°F). Precipitation levels are markedly different, with December experiencing 74 mm (2.9 in) of rain compared to October's 166 mm (6.5 in), which contributes to a wetter October overall despite both months having the same number of rainy days at 22. Humidity remains similar, with December recording 76% and October slightly higher at 78%. For more details about the weather in October, you can refer to Isabel Segunda weather in October.
In comparing the weather between November and December, we see some notable differences. December maintains a similar temperature range, with a minimum of 24°C (75°F), an average of 26°C (79°F), and a maximum of 28°C (83°F), but it is slightly cooler on average compared to November, which has an average temperature of 27°C (80°F). Precipitation also decreases significantly from November's 128 mm (5.1 in) to December's 74 mm (2.9 in), although both months experience rain on 22 days. Humidity is marginally lower in December at 76%, compared to November's 78%. For a detailed look at November weather in Isabel Segunda, you can check this link: Isabel Segunda weather in November.
December in Isabel Segunda brings a notable shift in weather compared to other months, with mild temperatures averaging around 26°C (79°F) and a pleasant yet humid atmosphere at 76%. This month typically experiences more precipitation than the drier months, with rain covering about three-quarters of the days, contributing to a total of 74 mm (2.9 in) of rainfall. As the year wraps up, visitors can expect a comfortable tropical climate contrasted with frequent, short-lived showers, making December a unique time to enjoy the lush landscape of Vieques. For more insights into the climatic conditions throughout the year, check out Isabel Segunda Climate.