we?re technically in hurricane/rain season now, and there has not been a lot of rain here in Puerto Plata *knock on wood*
hopefully it will be nice and sunny skies in January. But I wouldn~t worry anyway... most of the time there is a strong shower and then it is clear again... although last January there were some strong strong rains.... who knows really.
You~ll have to wait and see...but I wouldn~t be too worried if I were you