Hurricane season, really June to December (typically impacting the eastern part of DR), but if no storms it’s an excellent time to travel.
Temperatures don’t vary much (mountains an exception).
Deeply discounted room rates and some properties in resort areas like Cabarete close up in October.
You may see short but strong daily rains in Santo Domingo (through October).
March is generally one of the drier months in Samaná and April weather can be idyllic throughout the country – also breezy months.
Standard May to June forecast is pretty much always partly cloudy or partly sunny with chance of afternoon showers.
July to August and the week before Easter are also high season.
Expect significantly higher hotel prices and crowded beaches.
Most water sports are prohibited throughout the DR during the week before Easter.