Punta Cana weather can make or break a vacation in this resort town in Dominican Republic, so knowing the best months to go is a critical part of planning a trip.

This nation that shares an island with Haiti is one of the most popular vacation destinations in the Caribbean because of beautiful beaches and a large number of all-inclusive resorts. Weather is a major factor in vacationing at Punta Cana and Puerto Plata, two of the most popular resort destinations.

In a typical month, the average Punta Cana weather forecast on a monthly basis is a high temperature of about 85 degrees Fahrenheit and the average low temperature is about 74 degrees, according to the World Meteorological Organization. Average temperatures vary only a few degrees each month, with a high point of 87 in August and September and 82 in January and December.

Punta Cana receives about 43 inches of rain each year with 9.5 rain days in a typical month. Rainfall has a strong increase during May with an historical average of five inches. That makes May the second rainiest month of the year after October, which sees about six inches of rain. In contrast, February and March have only about 2 inches of rain per month.

As a result, weather impacts the popularity of the island among visitors each month. July is the most popular month for visiting Dominican Republic, followed by March. September and October are the least popular because of heavy rains from the annual Caribbean hurricane season.

Anyone planning to visit Dominican Republic will find that the best months based on both rainfall and temperatures are March, April and July. The months when there is a higher risk of bad weather are May, September, October and November.

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