Constanza is a town and municipality in La Vega Province, Dominican Republic. Located in the Cordillera Central region, Constanza is known for having the coldest temperature for a settlement on the island of Hispaniola, as well as the entire Caribbean.

The Bahamas and the Dominican Republic are frequently cited as the "coldest" countries in the Caribbean, particularly during the northern hemisphere's winter months. Because the Bahamas is located further north, near the Florida coast, it is more susceptible to "cold fronts" moving down from North America, which can drop daytime highs to around 21°C–24°C (70°F–75°F). Within the Dominican Republic, the Central Cordillera mountain range features towns like Constanza, where temperatures can plummet to 5°C (41°F) or even reach freezing at higher altitudes, earning it the nickname "The Enchanted Valley." In contrast, islands like Aruba and Curaçao maintain a steady 30°C (86°F) year-round. While the Caribbean is generally a warm destination, those seeking the "chilliest" experience would find it in the northern archipelagos or the high-altitude interior of the larger islands, where the sea can sometimes be uncomfortably cool for swimming in January and February.