Is it rainy in Aug and what about Occidental Allegro Playa Real resort?

For weather information, see http://dr1.com/travel/expect/weather.shtml

Only on very very rare occasions will be rain all day on consecutive days in Juan Dolio, quite a dry, very sunny area.

For what to do and what's near Juan Dolio, see http://dr1.com/travel/juandolio/

Juan Dolio is centrally located as you are near Boca Chica, Santo Domingo and La Romana.

You may want to read through those destination reports by going to the travel index page at http://www.dr1.com/travel/index.shtml