The shaded overlays indicate night and civil twilight. See more current weather Annual Weather Averages Near Santo Domingo Averages are for Santo Domingo, which is 4 miles from Santo Domingo. The lightly tinted areas at the boundaries of the cardinal compass points indicate the implied intermediate directions (northeast, southeast, southwest, and northwest). Dominican Republic weather in September has a lower risk of rain than most Caribbean destinations. Cowboys and equestrians gather on the north coast for this annual September festival featuring horseback riding competitions and live music. var path = 'hr' + 'ef' + '='; //