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The climate in the Dominican Republic remains tropical throughout the year with temperatures averaging around 25°C (77°F). The summer and winter seasons differ only by a slight variation in temperature. Visitors who come to the Dominican Republic, at virtually any time of year, can expect to be treated to extended periods of sunny, blue skies, ideal weather for tanning.
The best time to visit Punta Cana is during the “cool” season from November to April. During these months, the weather is pleasantly warm with relatively low levels of humidity and little precipitation. Temperatures along the coast are a constant around 29°C (84°F) during the day and drop to a comfortable 20°C (68°F) at night.
The “hot” season runs roughly from May to October, when the average temperature rises to 87°F (31°C) during the day and drops to about 72°F (22°C) at night. But with the high humidity levels during this season, the temperature feels much hotter. The rains bring a respite from the heat from May to August, but usually this turns out to be a tropical shower of no more than 30 minutes. Travelers are recommended to pack light and include plenty of light, fresh cotton clothing.
Despite such a minimal difference between summer and winter temperatures, the climate tends to vary greatly from one year to another due to the influence of weather phenomena known as “El Niño” and “La Niña” among others. The biggest threat to the Dominican Republic comes from hurricanes. The Caribbean hurricane season lasts from June 1 to November 30. August and September are the months most prone to hurricanes. Major resorts have become adept at recovering quickly after a hurricane.
As in most tropical areas, in Punta Cana the threat of mosquitoes is also great. Mosquitoes usually appear after dark but are seasonal and more noticeable in the rainy season. Visitors are advised to wear long, comfortable cotton pants after dark and use insect repellant sprays before venturing outdoors.