The weather forecast is for an active Atlantic Basin Hurricane Season. This means it is a good idea to bring a light rain jacket -- short one. We can expect more than the usual days of rain. This is a big island. For instance, this morning there were torrential rains in Santo Domingo, and got a report from Jarabacoa, in the middle of the country, that the sun was shining there. Also note that rain in the Caribbean is not cold, so you can enjoy walking in the rain!