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December Weather in Santo Domingo, Mexico

Last updated: August 26, 2025

In December, the average temperature in Santo Domingo, Mexico reaches a pleasant 24°C (75°F). However, be prepared for a range, as it can drop to a cool 11°C (52°F) at night and soar up to a sweltering 35°C (96°F) during the day. Expect 18 mm (0.7 in) of precipitation over the course of 4 days, coupled with a high average humidity of 84% that can make the air feel quite muggy.

December Temperature in Santo Domingo

In December in Santo Domingo, the average temperature is 24°C (75°F), with maximums reaching up to 35°C (96°F) and minimums dropping as low as 11°C (52°F). It's advisable to pack light clothing for warm days and a sweater for cooler evenings during your travels.

December Weather in Santo Domingo: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Santo Domingo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Santo Domingo, December typically has an average temperature of 24°C (75°F), with highs reaching up to 35°C (96°F) and lows dropping to around 11°C (52°F).
JanFebMarAprMayJunJulAugSepOctNovDec747780848583838282817775
Data source: Temperature data for Santo Domingo generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Santo Domingo

In Santo Domingo in December, the total precipitation amount is 18 mm (0.7 in) spread over a duration of 4 days.

December Precipitation Trends in Santo Domingo

The chart displays monthly precipitation patterns in Santo Domingo, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Santo Domingo, December typically receives around 18 mm (0.7 inches) of precipitation spread over approximately 4 days.
JanFebMarAprMayJunJulAugSepOctNovDec236618401616684951023119
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Santo Domingo

In Santo Domingo in December humidity is 84%. With an average temperature of 24°C (75°F), this humidity feels like a warm, tropical embrace, making it essential for travelers to stay hydrated and plan outdoor activities for early mornings or late afternoons when the heat is more bearable.

December Average Humidity in Santo Domingo

This chart illustrates the average monthly humidity levels in Santo Domingo, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Santo Domingo is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec79%80%76%74%72%73%77%77%76%77%81%84%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Santo Domingo

In Santo Domingo in December, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Santo Domingo.

Maximum UV Index Levels in Santo Domingo for December

The chart shows the monthly maximum UV Index (UVI) for Santo Domingo in December, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In December, the maximum UV index in Santo Domingo typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec810131313131313121187
Data source: Santo Domingo December UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How December Weather in Santo Domingo Compares to Other Months

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.

This table compares monthly weather conditions in Santo Domingo, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather23°C (74°F)23 mm (0.9 inches)79%very high
February Weather25°C (77°F)6 mm (0.2 inches)80%very high
March Weather27°C (80°F)6 mm (0.2 inches)76%extreme
April Weather29°C (84°F)18 mm (0.7 inches)74%extreme
May Weather29°C (85°F)40 mm (1.6 inches)72%extreme
June Weather28°C (83°F)161 mm (6.3 inches)73%extreme
July Weather28°C (83°F)65 mm (2.6 inches)77%extreme
August Weather28°C (83°F)84 mm (3.3 inches)77%extreme
September Weather28°C (83°F)95 mm (3.7 inches)75%extreme
October Weather27°C (81°F)102 mm (4.0 inches)76%extreme
November Weather25°C (77°F)31 mm (1.2 inches)81%very high
December Weather24°C (75°F)18 mm (0.7 inches)84%high

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