The Dominican Republic is a tropical country located in the Caribbean Sea. The weather in August is typically hot and humid with temperatures averaging in the low 90s. August is also the month with the most rainfall, so be sure to pack your rain gear! Hurricane season officially runs from June 1st to November 30th, so August is definitely a month to be aware of the potential for severe weather. However, most hurricanes that do form in August tend to stay offshore and away from the Dominican Republic.