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Portland Marina at Osprey Quay
Portland Marina, illustrated for Old Sea Dogs Guides. · Artwork supplied by Old Sea Dogs

Old Sea Dogs Guides

Portland Marina

All-tide, 24-hour, deep and sheltered inside Portland’s breakwaters — the easy late arrival on the Dorset coast.

Marina · Weymouth & Portland

Welcome to Portland Marina

Portland Marina lies on the north side of Portland, protected by the harbour breakwaters, with the Jurassic Coast and Chesil Beach on the doorstep.

Guide TypeMarina Guide
OperatorPremier Marinas
AddressOsprey Quay, 6 Hamm Beach Road, Portland, DT5 1DX
Telephone01305 866190
Email[email protected]
Marina VHFCh 80
Harbour VHFPortland Harbour Radio Ch 74
Harbour AuthorityPortland Harbour Authority Ltd (Portland Port), Castletown, DT5 1PP
Harbour leisure enquiries01305 825336 · [email protected]
Harbour DuesPayable by all vessels in Portland Harbour, including SUPs and kayaks
No anchoringCastle Cove seagrass area (LNtM 07/2021)
Reception24 hours
AccessAll states of tide (Premier)
FuelE5 petrol and red diesel — visitors’ area fuel pontoon and by the boatyard hoist; 0800–1700 (last request 1630), to 1900 Thu–Sun at peak times
Boatyard50-tonne travel lift and transporter
Speed limit6 knots (yellow buoys off the marina)
DepthsMarina and fairway maintained to around 4–4.5 m at chart datum (Premier Marinas). Check with the marina before arrival

Arrival by Sea

Use the North Ship Channel and tell Portland Harbour Radio on Ch 74 you are entering; the East Ship Channel is for commercial traffic unless cleared by the Harbour Master, and the South Ship Channel is obstructed. Enter the marina through the north side of its breakwater — not the shallow southern gap — then call Ch 80. Visitors turn to port inside the entrance. Pre-booking is recommended in peak season. Check with the marina before arrival.

Portland Harbour & Anchoring

Portland Harbour is a busy mixed-use port: cruise ships and tankers share it with yachts, dinghies, divers and kitesurfers. Of its three entrances, the North Ship Channel is for leisure traffic and the East Ship Channel is the main commercial entrance; when three vertical lights show there, a large commercial vessel is transiting and has right of way. Anchoring is prohibited in the Castle Cove seagrass area off Torpedo Pier. Read the Port’s current Notices in Force (watersports zones, foiling, diving) before choosing a spot, and ask the Port’s leisure team if unsure.

Ashore

Weymouth is a short hop away; Portland itself offers coast walks and the Isle’s heights.

Information checked against official sources

The practical information in this Guide was checked against the official source record below on 12 October 2026. Operational details can change.

  • Premier Portland Marina
  • Portland Port navigational safety

Related Guides

Weymouth Harbour and Custom House Quay

Harbour

Weymouth Harbour

Raft up on council pontoons along Custom House Quay, with pubs, fish and the Nothe Fort a step away.

Weymouth Marina in the inner harbour above the Town Bridge

Marina

Weymouth Marina

A sheltered town marina inside the lifting bridge — plan around bridge times and you are a short walk from station, beach and quays.

Weymouth Bay with the Isle of Portland behind

Cruising Area

Weymouth & Portland

Two very different stops a few miles apart: a lively Georgian town harbour and a vast, all-tide naval harbour under the Isle of Portland.

Local knowledge

Know this area?

Old Sea Dogs welcomes constructive feedback from local sailors, harbour users and cruising skippers. If you have spotted something that has changed, or have local knowledge that would improve this Guide, we would be pleased to hear from you.

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