Last updated: August 31, 2025
December in Comunas, Puerto Rico offers a delightful tropical experience, characterized by a pleasant average temperature of 26°C (78°F). With maximums reaching 28°C (83°F) and minimums around 23°C (74°F), the weather is comfortably warm, ideal for outdoor activities. However, this month also brings considerable rainfall, averaging 75 mm (2.9 in) over approximately 22 days, contributing to a humid atmosphere with a relative humidity of 77%. Visitors can expect a lush, vibrant landscape, perfect for enjoying the island's natural beauty amid the occasional shower.
In December, Comunas, Puerto Rico experiences a delightful transition into the winter months, with temperatures reflecting a warm tropical climate. The minimum temperature hovers around 23°C (74°F), while the average temperature reaches a pleasant 26°C (78°F), and the mercury can peak at 28°C (83°F) during the day. This month marks a subtle cooling trend compared to the hotter summer months, yet it preserves the island's inviting warmth. December’s temperatures are not just a break from the heat; they offer an ideal environment for outdoor festivities and exploration, making it a perfect time to soak in the vibrant local culture and stunning landscapes while enjoying mild and comfortable weather.
In December, Comunas, Puerto Rico experiences a notable dip in precipitation, with 75 mm (2.9 in) recorded across 22 days. This marks a significant decrease from the heavy rainfall seen in the preceding months, particularly September’s peak of 195 mm (7.7 in) and October's 179 mm (7.1 in). As the year draws to a close, December's precipitation pattern reflects a shift towards more stable weather, contrasting with the intense wet season that predominantly characterizes mid-year. This decline in precipitation not only influences local ecosystems but also provides a reprieve for communities after months of sustained rainfall.
In December, humidity in Comunas, Puerto Rico hovers around a comfortable 77%, marking a slight dip from the higher levels seen during the peak summer months of July and August, which recorded 81% and 80% respectively. This trend reflects a gradual decrease in humidity as the year draws to a close, following a pattern of consistent moisture throughout the earlier months, with January through May all registering above 75%. As autumn transitions to winter, humidity levels remain relatively high but stable, ensuring that the tropical ambiance of the region continues to envelop residents and visitors alike. Overall, December's humidity contributes to the unique climate of Puerto Rico, balancing the year with a sense of warmth and richness in the air.
In December, the UV Index in Comunas, Puerto Rico, reflects a notable trend as it returns to a very high exposure category, registering at 9 with a burn time of 15 minutes. This decline from the month of September's peak 14 signals a shift towards safer sun exposure, yet caution is still warranted. Over the previous months, from January through November, the UV Index predominantly hovered in the extreme category, particularly between 11 and 14, highlighting the importance of sun safety throughout much of the year. As we transition into winter, residents and visitors alike must remain vigilant, applying sunscreen and seeking shade even in the cooler months. For more details on UV Index trends, visit Comunas UV Index.
UV Risk Categories
December in Comunas, Puerto Rico, shines with 320 hours of sunlight, perfectly capping a year of abundant light. Notably, sunshine begins to swell in the spring, peaking in May with 359 hours as summer approaches. As the warmer months unfold, sunshine remains generous, with July and August recording impressive hours of 355 and 350, respectively. Despite a slight decline as the year winds down, December maintains a robust level of sunlight, far above January's 260 hours. This trend illustrates how Comunas enjoys a richly illuminated climate, making it a delightful destination even as the calendar year draws to a close.
In Comunas, Puerto Rico, the likelihood of sunny weather in December reaches a promising 61%, making it one of the brighter months of the year. This slight uptick from the 58% chance in November marks a trend where the end of the year brings more reliable sunshine compared to the dampness often associated with the mid-year months. Notably, while June and July experience significantly lower chances of sun at 21% and 42% respectively, the months leading into December, particularly February and March, show higher sunny probabilities, peaking at 67% and 64%. This overall trajectory suggests that as the year closes, residents and visitors alike can look forward to enjoying more favorable weather conditions in December, creating a delightful backdrop for holiday festivities.
In the Comunás of Puerto Rico, December marks a return to consistent daylight, offering 11 hours of sunlight each day. As the year unfolds, daylight duration slowly increases from January through June, peaking at 13 hours in the summer months of June and July. Following this high point, the days gradually shorten again, with daylight dipping back to 11 hours by October and lingering through December. This cyclical pattern highlights the region's consistent rhythm of shifting light, providing both residents and visitors with a predictable yet enchanting seasonal experience.
As December rolls into Comunas, Puerto Rico, the average wind speed typically reaches 5.5 m/s (12 mph), marking a slight uptick from the preceding months. This increase reflects a trend of growing winds during the latter part of the year after a dip in early fall, where winds were more subdued, particularly in September at 3.9 m/s (9 mph). The seasonal winds oscillate, with February peaking at 6.1 m/s (14 mph) and April displaying the gentlest breezes at just 4.4 m/s (10 mph). December's winds, while breezy, offer a mild and refreshing contrast to the warmer summer months when speeds hover around 6.0 m/s (13 mph). This shift heralds the onset of cooler temperatures, making December an inviting time for coastal strolls as the wind dances through the palm fronds and along the shoreline.
Weather in Comunas varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Comunas, focusing on differences in temperature, rainfall, humidity, and UV levels.
December and January showcase a mild tropical climate, with temperatures only slightly varying. In December, the average temperature hovers around 26°C (78°F), with a maximum of 28°C (83°F) and a minimum of 23°C (74°F). This month experiences higher precipitation, totaling 75 mm (2.9 in) over 22 days, contributing to a humidity level of 77%. In contrast, January sees a slight drop in temperature, averaging 25°C (77°F) with a maximum of 27°C (81°F) and a minimum of 22°C (72°F). Precipitation decreases to 52 mm (2.0 in) over 17 days, bringing humidity down to 76%. For further details on January weather, visit Comunas weather in January.
In December, the weather is generally warm with temperatures ranging from a minimum of 23°C (74°F) to a maximum of 28°C (83°F), averaging around 26°C (78°F). This month sees significant rainfall, with 75 mm (2.9 in) of precipitation recorded over 22 days, contributing to a humidity level of 77%. In contrast, February experiences slightly cooler temperatures, with minimums at 21°C (71°F) and maximums at 27°C (80°F), averaging 25°C (76°F). Rainfall decreases to 54 mm (2.1 in) occurring over 19 days, resulting in a marginally lower humidity of 75%. For a detailed look at the weather in February, you can check Comunas weather in February.
In December, the weather tends to be slightly warmer than in March, with average temperatures ranging from a minimum of 23°C (74°F) to a maximum of 28°C (83°F). In contrast, March features slightly cooler temperatures, averaging from 22°C (73°F) to a maximum of 27°C (82°F). Both months experience similar humidity levels, with December at 77% and March at 75%. Precipitation is also quite comparable, with December receiving 75 mm (2.9 in) over 22 days and March slightly less with 70 mm (2.8 in) over 21 days. For more detailed weather information in March, you can view Comunas weather in March.
In December, the weather features slightly warmer average temperatures, with a minimum of 23°C (74°F) and a maximum of 28°C (83°F). The month experiences a higher precipitation level of 75 mm (2.9 in) spread over 22 days, contributing to a humid environment with 77% humidity. In contrast, April presents slightly cooler temperatures with a minimum of 22°C (73°F) and a maximum of 27°C (82°F). Precipitation is also a bit lower in April, totaling 69 mm (2.7 in) across 20 days, and the humidity is marginally lower at 76%. For detailed insights into the weather conditions in April, you can visit Comunas weather in April.
In comparing the weather between December and May, we find that both months share a similar temperature range, with December having a minimum of 23°C (74°F) and an average of 26°C (78°F), while May sees slightly warmer conditions with a maximum of 29°C (84°F). Precipitation in May is notably higher at 101 mm (4.0 in), compared to December’s 75 mm (2.9 in), and May also experiences rain on more days, totaling 25 compared to December's 22. Interestingly, humidity remains consistent, with December registering at 77% and May at 76%. For a more detailed look at the specific weather patterns in May, you can check out Comunas weather in May.
In December, temperatures in the region are slightly milder, ranging from a minimum of 23°C (74°F) to a maximum of 28°C (83°F), with an average of 26°C (78°F). Although it experiences frequent rain, with precipitation occurring on 22 days and a total of 75 mm (2.9 in), the humidity remains relatively high at 77%. In contrast, June tends to be a bit warmer, with temperatures ranging from 24°C (75°F) to 29°C (85°F) and an average of 27°C (80°F). The month sees increased rainfall, totaling 103 mm (4.1 in) over 25 days, resulting in a humidity level of 78%. For more detailed insights, check out Comunas weather in June.
December and July showcase distinct weather patterns. In December, temperatures range from a minimum of 23°C (74°F) to a maximum of 28°C (83°F), with an average temperature of 26°C (78°F). The month experiences about 75 mm (2.9 in) of precipitation over 22 days, while humidity hovers around 77%. In contrast, July is slightly warmer, with temperatures ranging from a minimum of 24°C (76°F) to a maximum of 29°C (85°F) and an average of 27°C (81°F). However, it is also wetter, receiving 145 mm (5.7 in) of precipitation over 27 days, and it has a higher humidity level at 81%. For more details on July weather, you can refer to Comunas weather in July.
When comparing December and August weather, notable differences emerge in temperature and precipitation patterns. December tends to be slightly cooler, with temperatures averaging 26°C (78°F), compared to August's warmer average of 27°C (81°F). While December has a maximum of 28°C (83°F), August can reach up to 30°C (86°F). In terms of precipitation, August is considerably wetter, receiving 148 mm (5.8 in) over 27 days, compared to December’s 75 mm (2.9 in) across 22 days. Humidity levels are also higher in August at 80%, versus December's 77%. For more detailed insights, you can refer to Comunas weather in August.
When comparing the weather in December and September, we see some notable differences. December typically has milder temperatures, with a minimum of 23°C (74°F) and a maximum of 28°C (83°F), resulting in an average of 26°C (78°F). In contrast, September tends to be warmer, with temperatures ranging from a minimum of 25°C (77°F) to a maximum of 30°C (86°F), averaging around 27°C (82°F). Additionally, December experiences less precipitation, totaling 75 mm (2.9 in) across 22 days, while September is significantly wetter, with 195 mm (7.7 in) over 28 days. Humidity levels are somewhat similar, with December at 77% and September at 79%. For a closer look at conditions in September, you can visit Comunas weather in September.
In December, the weather is slightly cooler than in October, with average temperatures ranging from a minimum of 23°C (74°F) to a maximum of 28°C (83°F). While both months experience high humidity, December sees less precipitation, totaling 75 mm (2.9 in) over 22 days, compared to October, which has a wetter climate with 179 mm (7.1 in) spread over 26 days. Interestingly, October's average temperature is a bit warmer, with minimums of 24°C (76°F) and maximums reaching 29°C (85°F), making it feel more tropical. For more specific details on October’s weather, you can check Comunas weather in October.
In comparing the weather of December to November, we see a slight decline in temperature, with December experiencing average temperatures ranging from a minimum of 23°C (74°F) to a maximum of 28°C (83°F), whereas November's range is slightly warmer, with minimums at 24°C (75°F) and maximums at 29°C (84°F). Additionally, December tends to be drier, with 75 mm (2.9 in) of precipitation over 22 days compared to November's 129 mm (5.1 in) spread over 25 days. Humidity remains quite similar, hovering around 77% in December and 78% in November. For more detailed insights, check out Comunas weather in November.
In December, Comunas experiences a shift in weather patterns that set it apart from the warmer months. With mild temperatures and a humid climate, this month tends to be more comfortable, inviting residents and visitors to embrace outdoor activities. However, increased rainfall adds a twist, as December sees more precipitation days, creating a blend of cozy indoor moments and refreshing outdoor escapades. This unique weather dynamic encourages exploration of the stunning landscapes, making it an ideal time to enjoy the natural beauty of the area. For a more detailed understanding of what to expect, check out Comunas Climate.