Santo Domingo vs San Juan

Based on sunshine hours, rain days, comfortable temperatures, and humidity levels, San Juan edges ahead as the better destination in January. San Juan offers 11 hours of daily sunshine with only 11 rain days, while Santo Domingo sees 10 sunshine hours and 12 rain days.

Santo Domingo sits in the comfortable travel range at 27°C. San Juan is also comfortable at 28°C.

For travelers who prioritize dry weather, San Juan is the stronger choice in January. San Juan receives 1 more hour of sunshine per day, which matters for sightseeing and outdoor activities.

Santo Domingo reaches an average high of 27°C (81°F) and drops to 20°C (68°F) at night during January. 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 January.

Santo Domingo receives approximately 33 mm of rainfall across 12 rain days during January. You can expect rain roughly every other day.

San Juan sees 43 mm over 11 rain days. That makes San Juan the drier option by 1 rain day and 10 mm of total precipitation.

Both cities share similar humidity levels at 78%.