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Eastham to Portsmouth by boat

Eastham to Portsmouth

Distance - 80.9 Nm

Avg Speed
5 kts
10 kts
20 kts
30 kts
Time Estimate
16 hours, 11 minutes
8 hours, 5 minutes
4 hours, 3 minutes
2 hours, 42 minutes
Eastham to Portsmouth

Eastham to Portsmouth

Pilotage Plan: Eastham, Massachusetts to Portsmouth, Rhode Island

Overview
Embarking on a voyage from Eastham, Massachusetts to Portsmouth, Rhode Island offers a delightful mix of scenic waters, notable landmarks, and charming ports of call. The route stretches approximately 30 nautical miles, navigating through the picturesque waters of Cape Cod and the southern Massachusetts coast. This itinerary is designed for experienced boaters looking for a safe, enjoyable trip with the flexibility to adjust for changing weather conditions.

Route and Navigation Considerations

Departure: Eastham, Massachusetts
As you leave Eastham, be sure to set your initial course toward the entrance of Cape Cod Bay. The waters can be relatively shallow close to the shore, so maintain a keen awareness of your chart plotting and local conditions.

Navigational Aids:
Nauset Lighthouse: This iconic landmark will come into view as you make your way out of Eastham. Located just north of the Chatham Inlet, it is an excellent visual reference.
Fishers Island Sound: As you travel south, watch for buoys marking the channel through the sound. Use your marine charts for depth awareness and avoid shallow areas.

Sheltering Bays Along the Route:
Stage Harbor: Approximately 5 nautical miles from Eastham, Stage Harbor is a great spot to consider for a brief layover or harboring if weather conditions worsen. It features a well-marked channel, and nearby amenities provide options for rest and supplies.
Chatham Harbor: Another excellent stop, about 10 nautical miles in, this harbor offers good protection from prevailing winds. The nearby town provides dining options and local charm.

Open Waters:
After leaving Stage Harbor, you will head further south into the open waters. Keep an eye on the weather and pay attention to the local forecasts, as coastal weather can be unpredictable.

Navigational Aids:
Monomoy Island: To your west, this wildlife refuge is a point of interest. While it's tempting to explore, be cautious here, as tidal currents can be strong, and shallow waters abound. Use your GPS and charts to avoid hazards.

Southern Route:
As you round Monomoy Island, your course will bring you toward Point Judith, Rhode Island. Maintain a steady watch for commercial fishing vessels in this area, as it is a bustling focal point for local fishermen.

Points of Interest
Block Island Sound: Since you will be navigating close to the sound, consider taking a detour if time permits to visit Block Island. Known for its stunning landscapes and recreational opportunities, it’s a classic New England destination.

Final Approach to Portsmouth
As you continue towards Portsmouth, navigate carefully through the East Passage of Narragansett Bay. Be aware of the swift currents and the need for vigilance as you approach the mouth of the bay.

Navigational Aids:
Sakonnet Light: This distinctive lighthouse marks the entrance to the Sakonnet River. It serves as a key reference point as you navigate into the more enclosed waters of Rhode Island.

Arrival: Portsmouth, Rhode Island
Upon reaching Portsmouth, you’ll find several marinas offering safe docking options. Take the opportunity to explore this historic town, known for its beautiful waterfront and great local eateries.

Safety Considerations

  • Always check local weather before departure and keep an eye on changes in the forecast during your trip.
  • Ensure that you have all necessary safety equipment on board, including life jackets, flares, and a functional VHF radio.
  • Attend to state and local regulations regarding fishing and marine wildlife, including maintaining safe distances from swimming areas and protected zones.

Recommended Apps
For navigation, I recommend using savvy navvy; it provides up-to-date charts, real-time alerts, and a course plotting feature that will enhance your sailing experience. Additional apps to consider include BoatUS for tow assistance and Windy for wind and weather forecasts.

This route presents a safe and enriching experience for seasoned boaters, allowing for exploration while keeping safety as a priority. Enjoy your journey from Eastham to Portsmouth!

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