Santo Domingo vs San Juan

Based on sunshine hours, rain days, comfortable temperatures, and humidity levels, Santo Domingo edges ahead as the better destination in December. Santo Domingo offers 11 hours of daily sunshine with only 12 rain days, while San Juan sees 11 sunshine hours and 13 rain days.

Santo Domingo sits in the comfortable travel range at 28°C. San Juan is also comfortable at 28°C.

For travelers who prioritize dry weather, Santo Domingo is the stronger choice in December.

Santo Domingo reaches an average high of 28°C (82°F) and drops to 21°C (70°F) at night during December. The daily temperature range is 7°C, meaning relatively stable temperatures from day to night.

San Juan averages 28°C (82°F) for the high and 22°C (72°F) for the low, with a daily range of 6°C. The two cities feel quite similar in terms of temperature.

Both cities are in the Northern Hemisphere, so they share the same seasonal pattern in December.

Santo Domingo receives approximately 42 mm of rainfall across 12 rain days during December. You can expect rain roughly every other day.

San Juan sees 49 mm over 13 rain days. That makes Santo Domingo the drier option by 1 rain day and 7 mm of total precipitation.

Both cities share similar humidity levels at 78%.