It is all about the weather conditions, if you see whitecaps out there from the wind, don't go out it will only get worse. If winds are below 10mph you will typically be okay. I fish the area around Block Island with a 19' center console, the trip is about 20 miles each way.
The other suggestion I can give you, is base your trip on how the water looks outside the harbor, there have been many days where the weather was predicted to be rough and it turned out nice.
The other suggestion I can give you, is base your trip on how the water looks outside the harbor, there have been many days where the weather was predicted to be rough and it turned out nice.