Koper Outer Bay Anchorage Guide

The Anchorage

The outer bay approach to Koper in 5–12m over mud with good holding. Protected from W by the Izola peninsula; exposed to N, NE, E, and S. Commercial vessel traffic is the primary operational consideration — the anchorage is clear of the main shipping lane, but VHF Ch 16 monitoring and a continuous watch for cargo vessel movements is mandatory. Marina Koper (75 berths, 70-tonne lift) is inside the commercial port — call ahead on VHF Ch 16 before entering the port area. Anchor in minimum 8m at high tide to account for the 1m+ tidal range. Good mud holding once set.

Setting Your Anchor

The bottom at Koper Outer Bay is primarily mud with reliable holding when properly set.

1. Contact Marina Izola on VHF Ch 16 before arrival — 24-hour landing assistance is guaranteed. Max draft 4.5m. Confirm berth availability and depth for your keel.
2. Anchor in 5–12m, adding 1–1.5m to the charted depth to account for the 1m+ Northern Adriatic tidal range.
3. Deploy at least 5:1 scope (60m chain at 12m depth) — tidal movement increases rode workload compared to Mediterranean anchorages.
4. Set firmly in reverse — 30–60 seconds at moderate throttle. Use the scope calculator to confirm adequate chain.

Recommended anchor types: Rocna, Mantus, Spade, Delta, CQR.

Overnight Anchoring & Anchor Alarm

Overnight stays at Koper Outer Bay are best in settled conditions — the anchorage is exposed to N and NE and E and S winds. The Northern Adriatic tidal range of 1m+ means your boat will swing through a wider arc than in most Mediterranean anchorages as the rode angle changes through the tidal cycle.

Set your GPS anchor alarm to 80m radius before going below. 80m radius in 8–10m mud. Good mud holding. Commercial port traffic — keep well clear of shipping lanes. 1m+ tidal range adds to alarm radius requirement.

Best May–September as a transit waypoint. Most useful as an overnight stop on passage between the Slovenian coast and Trieste or Venice. The commercial port operates 24 hours — expect vessel movements at any hour. Not suitable as a leisure anchorage destination. October–April: Bora frequency increases significantly from the Karst plateau directly above Koper; Marina Koper inside the port is the appropriate winter shelter.

Navigation Hazards

• Commercial port traffic — cargo vessels and ferries; monitor VHF Ch 16 at all times; keep well clear of the main shipping lane into Koper commercial port
• N/NE and S exposure — Bora from NE has no obstruction from the Karst plateau above Koper; Jugo (SE gale) builds significant swell from S; leave for Marina Koper if either is forecast
• Large swell in strong S (Jugo) conditions — muddy bottom good holding but seas can build quickly in the outer bay
• Tidal range 1m+ at springs — anchor in minimum 8m at high tide; this is an exposed outer bay where the tidal factor is significant

Rules & Regulations

• EU/Schengen — no customs formalities for EU boats arriving from EU ports. Non-EU citizens: register with police within 3 days. Non-EU flagged boats: 18-month temporary importation relief (TIR).
• Anchoring fee: Free — outer bay anchorage; commercial port traffic nearby
• Restrictions: Monitor VHF Ch 16 continuously — commercial port traffic; cargo vessels and ferries have right of way. Keep well clear of shipping lanes and port approach channel. Anchor in minimum 8m at high tide for 1m+ tidal range. N/NE/S exposure — not suitable in strong Bora or Jugo conditions. Contact Marina Koper on VHF Ch 16 before entering port area.

For a full overview, see our overnight anchoring rules by region guide.

Facilities

• Fresh water: Not available on site
• Fuel: Not available — nearest: Izola old town (7nm)
• Restaurant: None — nearest at Izola old town (7nm)
• Provisions: None on site — Izola old town (7nm)

Skipper's Tips

1. Commercial traffic: monitor VHF Ch 16 and keep watch for cargo vessels entering and leaving the port of Koper at all times
2. Marina Koper (75 berths, 70-tonne lift) is inside the commercial port entrance — call ahead on VHF Ch 16; the marina handles visiting yachts alongside commercial operations
3. Koper old town (Venetian loggia, historic Tito Square) is accessible by dinghy from Marina Koper — the most complete Venetian old town on the Slovenian coast
4. Trieste is 20 minutes by car from Koper — practical for crew changes, provisioning at large supermarkets, or airport connections
5. This is the northernmost Adriatic — Venice is approximately 2 hours N by car, or accessible by seasonal Venezia Lines ferry from Piran