Last updated: August 27, 2025
In Santo Domingo, Mexico, the average temperature in December hovers around 13°C (55°F). Expect a wide range of temperatures, with a minimum dipping as low as -7°C (20°F) and a rare maximum peaking at 27°C (80°F). During this month, precipitation is modest, totaling 16 mm (0.6 in) over just 1 day. With an average humidity of 87%, it's safe to say you'll feel the dampness in the air.
In December in Santo Domingo, the average temperature is 13°C (55°F), with maximums reaching up to 27°C (80°F) and minimums dropping as low as -7°C (20°F). This means you should be prepared for a range of weather conditions, making it a great time for adventurous travelers.
In Santo Domingo in December, the precipitation amount is 16 mm (0.6 in) over the course of 1 day.
In Santo Domingo in December, humidity is 87%. With an average temperature of 13°C (55°F), this humidity feels like a heavy blanket wrapping around you, making travel sluggish and slightly uncomfortable, as each step seems to cling to the damp air.
In Santo Domingo in December, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Santo Domingo.
UV Risk Categories
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.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 12°C (54°F) | 12 mm (0.5 inches) | 75% | very high |
| February Weather | 15°C (59°F) | 8 mm (0.3 inches) | 69% | extreme |
| March Weather | 18°C (65°F) | 7 mm (0.3 inches) | 65% | extreme |
| April Weather | 20°C (69°F) | 7 mm (0.3 inches) | 64% | extreme |
| May Weather | 22°C (72°F) | 31 mm (1.2 inches) | 75% | extreme |
| June Weather | 21°C (70°F) | 59 mm (2.3 inches) | 78% | extreme |
| July Weather | 20°C (69°F) | 66 mm (2.6 inches) | 67% | extreme |
| August Weather | 21°C (69°F) | 41 mm (1.6 inches) | 64% | extreme |
| September Weather | 19°C (67°F) | 80 mm (3.2 inches) | 81% | extreme |
| October Weather | 18°C (65°F) | 36 mm (1.4 inches) | 85% | extreme |
| November Weather | 15°C (60°F) | 10 mm (0.4 inches) | 87% | very high |
| December Weather | 13°C (55°F) | 16 mm (0.6 inches) | 87% | very high |