Santo Domingo vs San Juan

Santo Domingo and San Juan are closely matched in August. Neither city has a clear advantage across all metrics. Your decision should come down to personal preference, cultural interests, and travel logistics rather than weather alone.

Santo Domingo can feel quite hot at 30°C, so plan for heat. San Juan runs hot at 31°C.

For travelers who prioritize dry weather, San Juan is the stronger choice in August. Santo Domingo receives 5 more hours of sunshine per day, which matters for sightseeing and outdoor activities.

Santo Domingo reaches an average high of 30°C (86°F) and drops to 23°C (73°F) at night during August. The daily temperature range is 7°C, meaning relatively stable temperatures from day to night.

San Juan averages 31°C (88°F) for the high and 24°C (75°F) for the low, with a daily range of 7°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 August.

Santo Domingo receives approximately 131 mm of rainfall across 22 rain days during August. Rain is frequent, so waterproof gear is essential.

San Juan sees 175 mm over 15 rain days. That makes San Juan the drier option by 7 rain days and 44 mm of total precipitation.

Both cities share similar humidity levels at 78%.