Last updated: August 21, 2025
In December, Santo Domingo experiences warm and inviting weather, with maximum temperatures reaching 32°C (90°F) and an average of 25°C (77°F). The evenings bring a pleasant coolness, dropping to a minimum of 18°C (65°F). Despite frequent rainfall, with 15 days of precipitation totaling 45 mm (1.8 in), the tropical humidity remains a consistent 69%, creating a lush atmosphere. Visitors to this vibrant city can enjoy the balance of warmth and occasional showers, making December a unique time to experience Santo Domingo's lively culture and stunning landscapes.
In December, Santo Domingo experiences delightful temperatures that signal the onset of the dry season. With minimums averaging 18°C (65°F) and maximums climbing to 32°C (90°F), the climate is perfect for outdoor adventures and festivities. The average temperature hovers around 25°C (77°F), offering a warm and inviting atmosphere for both locals and travelers. This month serves as a bridge between the cooler temperatures of late fall and the warmer embrace of January, highlighting a trend of relatively consistent warmth throughout the year while maintaining a touch of mildness that makes December particularly enjoyable.
In December, Santo Domingo experiences a notable dip in precipitation, receiving an average of 45 mm (1.8 in) of rain over approximately 15 days. This marks a shift from the wetter months of late summer and fall, where rainfall often surpasses 100 mm. The city's yearly pattern showcases a peak in rainfall during the summer and early autumn, with June through October consistently delivering the highest amounts. By December, the rainy season winds down, bringing a drier yet still humid atmosphere as the city transitions into the cooler winter months. This makes December an ideal time for visitors seeking to enjoy more comfortable weather while still experiencing occasional rain showers.
In December, Santo Domingo experiences a noticeable shift in humidity, averaging 69%. This month falls amidst a broader trend of fluctuating humidity levels throughout the year, which peaks in the late summer and early fall. Notably, August and September see the highest readings at 71% and 73% respectively, contributing to a muggy atmosphere. As the year progresses toward a close, humidity begins to ease slightly, dropping from a high of 72% in both October and November. Compared to earlier months, like April and May, when the humidity hovers around 57%, December's levels reflect a transitional phase that blends the lingering warmth of the Caribbean with the fresh coolness of winter, making the air feel vibrant yet comfortable.
In December, Santo Domingo continues to bask in the warmth of the tropics, with a UV Index of 8, categorized as very high. This moderate dip from the extreme levels seen in earlier months signals a slight easing of sun exposure, yet caution is still warranted. The burn time remains at 15 minutes, allowing a little extra time before needing to seek shade or apply sunscreen. Throughout the year, the UV Index often hovers in the extreme range from February to November, peaking at 13 during the summer months of March to August. This trend highlights the consistent intensity of the sun, making it crucial for residents and tourists alike to stay sun-safe. For more insights on UV levels, check out Santo Domingo UV Index.
UV Risk Categories
December in Santo Domingo basks in an impressive 314 hours of sunshine, offering a radiant conclusion to the year's weather trends. This month showcases a delightful brightness that transitions smoothly from the cooler days of November, which recorded 282 hours. As the year progresses, sunlight peaks in the summer months, with July leading the way at 347 hours, but December still proudly stands among the top performers. With sunshine hours steadily increasing from November to December, visitors can expect vibrant days filled with warmth and clarity, making it an ideal time to explore the rich culture and stunning landscapes of the Dominican Republic.
December in Santo Domingo, Dominican Republic, brings a 61% chance of sunny days, making it an appealing choice for those seeking warmth and light during the holiday season. This likelihood is notably higher than the summer months, where the chances drop to around 32% to 42%. As the year draws to a close, December offers a pleasant escape from the rainier spells of June and August, and aligns closely with November’s 64%, ushering in a cozy atmosphere ideal for outdoor festivities. With a welcome blend of sun and mild temperatures, December promises a delightful backdrop for holiday adventures in this vibrant Caribbean city.
In Santo Domingo, December ushers in a delightful return to a consistent 11 hours of daylight, a pattern reminiscent of both January and February. As the year progresses, daylight gradually increases, peaking at 13 hours in June and July, before gently tapering off in the latter months. The transition from the longer days of summer to the shorter daylight hours of winter creates a rhythm that enhances the city's vibrant atmosphere. With 12 hours of daylight in the spring and early fall, Santo Domingo offers a perfect balance throughout the year, ensuring that residents and visitors alike can enjoy the beauty of its sunny skies, regardless of the season.
As December arrives in Santo Domingo, the winds begin to sing a slightly stronger tune, with an average speed of 3.0 m/s (7 mph). This marks a notable increase compared to the more tranquil breezes of the preceding months, where speeds hovered around 2.4 m/s to 2.1 m/s. As the year closes, this invigorating gust brings a refreshing change, hinting at the cozy festive season ahead. Notably, December's winds are among the highest of the year, trailing only behind the livelier currents felt in March. This seasonal uplift not only enhances the island’s charm but also invigorates outdoor activities, inviting locals and visitors alike to embrace the fresh air during this vibrant time of year.
Weather in Santo Domingo varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Santo Domingo, focusing on differences in temperature, rainfall, humidity, and UV levels.
In comparing the weather of December and January, December tends to be slightly warmer, with average temperatures ranging from a minimum of 18°C (65°F) to a maximum of 32°C (90°F), while January sees a slight drop, with temperatures between 15°C (60°F) and 31°C (88°F). December experiences more precipitation, averaging 45 mm (1.8 in) over approximately 15 days, compared to January's 36 mm (1.4 in) over 11 days. Additionally, humidity levels are a bit higher in December at 69%, compared to 65% in January. For more details on January weather trends, visit Santo Domingo weather in January.
In December, the weather typically ranges from a minimum temperature of 18°C (65°F) to a maximum of 32°C (90°F), with an average temperature of 25°C (77°F). This month experiences about 45 mm (1.8 in) of precipitation over 15 days, accompanied by a relatively high humidity level of 69%.
In contrast, February sees slightly cooler averages, with temperatures ranging from a minimum of 18°C (65°F) to a maximum of 31°C (88°F), and an overall average of 24°C (76°F). Precipitation increases slightly to 49 mm (1.9 in) but occurs over 18 days, and humidity drops to 63%. For more detailed information on February’s weather, visit Santo Domingo weather in February.
The weather in December and March shows some similarities and notable differences. December typically has a slightly warmer average temperature of 25°C (77°F), compared to March's 24°C (76°F), although both months experience maximum temperatures reaching as high as 32°C (90°F) and 32°C (89°F) respectively. Precipitation levels in both months are relatively close, with December receiving 45 mm (1.8 in) over 15 days and March slightly higher at 52 mm (2.1 in) over 16 days. Additionally, December has a higher humidity level at 69%, while March experiences a more comfortable 59%. For more detailed information about March weather in Santo Domingo, you can visit Santo Domingo weather in March.
In December, the weather in Santo Domingo showcases warm temperatures, with a minimum of 18°C (65°F) and a maximum of 32°C (90°F). The average temperature stays around 25°C (77°F), accompanied by 45 mm (1.8 in) of precipitation over 15 days, contributing to a relatively humid 69%. In contrast, April brings slightly warmer conditions with a minimum temperature of 19°C (66°F) and a maximum of 32°C (91°F), while maintaining an average of 25°C (78°F). However, April sees a significant increase in rainfall, with 76 mm (3.0 in) spread over 18 days, and lower humidity at 58%. For a detailed overview of the weather conditions in April, you can visit Santo Domingo weather in April.
In December, the weather tends to be warm and relatively dry, with average temperatures ranging from a minimum of 18°C (65°F) to a maximum of 32°C (90°F), and only 45 mm (1.8 in) of precipitation over about 15 days. The humidity is also higher at 69%, contributing to a more tropical feel. In contrast, May experiences slightly warmer temperatures, with a minimum of 20°C (68°F) and a maximum of 33°C (91°F). However, it also sees significantly more rainfall, totaling 108 mm (4.3 in) over 24 days, and lower humidity at 57%. For more detailed information on May's weather, you can visit Santo Domingo weather in May.
In comparing the weather of December and June, we observe notable differences in temperature, precipitation, and humidity. December tends to be milder, with temperatures ranging from a minimum of 18°C (65°F) to a maximum of 32°C (90°F) and an average of 25°C (77°F). The month experiences about 45 mm (1.8 in) of rain over 15 days and has a relatively high humidity level of 69%. In contrast, June is slightly warmer, with temperatures ranging from 19°C (67°F) to 33°C (92°F) and an average of 27°C (80°F). Rainfall increases significantly during this month, totaling 87 mm (3.4 in) over 24 days, while humidity is lower at 57%. For more specifics about the weather in June, you can visit Santo Domingo weather in June.
In December, the weather tends to be milder with temperatures ranging from a minimum of 18°C (65°F) to a maximum of 32°C (90°F), averaging around 25°C (77°F). This month experiences some rainfall, with about 45 mm (1.8 in) falling over approximately 15 days, while the humidity hovers around 69%. In contrast, July is typically warmer, featuring temperatures that range from a minimum of 22°C (71°F) to a maximum of 34°C (93°F), with an average temperature of 27°C (81°F). However, it also sees significantly more precipitation, totaling 107 mm (4.2 in) across about 24 days, although the humidity is slightly lower at 63%. For more details on weather conditions during this summer month, check out Santo Domingo weather in July.
When comparing the weather between December and August, significant differences emerge. December tends to be milder, with average temperatures ranging from a minimum of 18°C (65°F) to a maximum of 32°C (90°F), and it sees relatively lower precipitation of 45 mm (1.8 in) over about 15 days. In contrast, August is warmer, with temperatures ranging from a minimum of 22°C (72°F) to a peak of 34°C (93°F) and significantly higher rainfall, totaling 150 mm (5.9 in) over around 24 days. Humidity levels are quite similar, hovering at 69% in December and 71% in August, but the increased precipitation in August makes it feel more humid overall. For more details on the August weather in Santo Domingo, you can check out Santo Domingo weather in August.
December and September in Santo Domingo offer distinct weather experiences. In December, temperatures range from a minimum of 18°C (65°F) to a maximum of 32°C (90°F), with an average of 25°C (77°F). The month typically sees 45 mm (1.8 inches) of precipitation over 15 days, and humidity levels hover around 69%. Conversely, September is noticeably warmer, with temperatures ranging from 22°C (72°F) at night to a high of 35°C (95°F) during the day, averaging 27°C (81°F). Precipitation is more abundant in September, with 107 mm (4.2 inches) spread across 21 days, and humidity slightly higher at 73%. For more details, check out Santo Domingo weather in September.
In comparing the weather between December and October, we observe that December experiences slightly lower temperatures, with an average of 25°C (77°F) compared to October's 26°C (79°F). October has a higher minimum temperature of 21°C (70°F) and a maximum of 33°C (92°F), while December's temperatures range from a minimum of 18°C (65°F) to a maximum of 32°C (90°F). Additionally, December sees significantly less precipitation, with 45 mm (1.8 in) over 15 days, compared to October's 123 mm (4.9 in) over 23 days. Humidity remains fairly consistent between the two months, with December at 69% and October at 72%. For more details, you can check Santo Domingo weather in October.
In comparing the weather of December to that of November, we notice a slight drop in minimum temperatures, with December recording a minimum of 18°C (65°F) compared to November's 20°C (67°F). However, the average temperature remains similar, hovering around 25°C (77°F) in both months. December experiences slightly less precipitation at 45 mm (1.8 in) over 15 days, whereas November sees a significant increase in rainfall with 113 mm (4.4 in) also over 15 days. Humidity levels are comparable, with December at 69% and November at 72%. For a more detailed overview, you can check Santo Domingo weather in November.
As December settles in Santo Domingo, the weather transforms into a delightful balance of warmth and mildness, offering a charming escape from the hotter months. The average temperature hovers comfortably around 25°C (77°F), while maximums can reach a pleasant 32°C (90°F). Although precipitation becomes a factor with around 15 rainy days throughout the month, it's often brief and refreshing, making it a great time for travelers to explore the lush landscapes without the oppressive humidity typical of summer. For anyone planning a visit, the unique December climate provides an inviting backdrop for both leisure and adventure. Discover more about the year-round weather patterns by visiting Santo Domingo Climate.