COPENHAGEN HARBOUR AND THE SOUND (ØRESUND)

Copenhagen: boating safety

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Copenhagen lies on the Sound (Øresund), the busy strait between Denmark and Sweden. Visiting yachts berth in the city's marinas or in the inner harbour at Nyhavn and Ofelia Plads, and the harbour has its own speed limits and rules. Large ships pass close by on their way between the Baltic and the Kattegat.

LIFE IN DANGER AT SEA
Call +45 72 85 03 80
Call JRCC Denmark on +45 72 85 03 80. On the radio: MAYDAY on VHF 16, or DSC on channel 70.

Denmark: all rescue numbers → On the rescue map → Print an emergency card →

Harbour and marinas

By & Havn's maritime duty phone (for bridge openings, the lock and ship calls) is 4042 3977; the duty line is staffed around the clock but outside office hours is for urgent matters only. Copenhagen Malmö Port's harbour watch (staffed 24 h) is 3546 1111.

By & Havn · By & Havn · By & Havn ▾
byoghavn.dk (2026-10-14): “Den maritime vagttelefon i Københavns Havn er bemandet døgnet rundt”
byoghavn.dk (2026-10-14): “Uden for alm. arbejdstid kan telefonen anvendes ved akut og uopsætteligt behov for kontakt. Maritim vagt - fx broåbninger, slusen og skibsanløb T: 4042 3977”
byoghavn.dk (2026-10-14): “CMP havnevagt (døgnbemandet) T: 3546 1111”

Boats under 25 m cannot book a guest berth in the inner harbour; at Nyhavn and Ofelia Plads you pay the harbour fee at the ticket machine on arrival. Svanemøllehavnen marina: 39 20 22 21.

By & Havn · By & Havn · By & Havn ▾
byoghavn.dk (2026-10-14): “Der kan ikke reserveres plads for både under 25 meter.”
byoghavn.dk (2026-10-14): “Havneafgift betales i billetautomaten ved ankomst.”
byoghavn.dk (2026-10-14): “Svanemøllehavnen: 39 20 22 21”

Weather

DMI weather warnings are sent out by the same means as the Danish Maritime Authority's warnings (including the SejlSikkert app). By & Havn's weather station (byoghavn.dk/vejrstation) shows wind, current speed and current direction in the harbour.

Danish Maritime Authority · Danish Maritime Authority · By & Havn ▾
dma.dk (2026-10-14): “via the SejlSikkert App (in Danish)”
dma.dk (2026-10-14): “Meteorological warnings are transmitted by the DMI via the above-mentioned means of transmission”
byoghavn.dk (2026-10-14): “På hjemmesiden byoghavn.dk/vejrstation kan du altid se vindforhold, strømhastighed, strømretning og andre vejrdata i området.”

Local rules

Speed limits (measured by GPS): 6 knots in the main channel (Hovedløbet) and Sluseløbet but 4 knots in all marinas; 5 knots in Kalvebodløbet; 4 knots in all canals, basins and side channels.

By & Havn · By & Havn · By & Havn ▾
byoghavn.dk (2026-10-14): “6 knob i Hovedløbet og Sluseløbet, dog 4 knob i alle lystbådehavne”
byoghavn.dk (2026-10-14): “5 knob i Kalvebodløbet”
byoghavn.dk (2026-10-14): “4 knob i alle kanaler, bassiner og sideløb”

Sailing under sail is prohibited inside Copenhagen harbour.

By & Havn ▾
byoghavn.dk (2026-10-14): “Det er forbudt at fremdrive et fartøj eller en genstand med sejl i Københavns Havn.”

Swimming in Copenhagen harbour is prohibited except at facilities or areas approved for bathing.

By & Havn ▾
byoghavn.dk (2026-10-14): “Det er forbudt at bade i Københavns Havn, medmindre et anlæg eller område er godkendt til badning af havnemyndigheden eller Trafikstyrelsen.”

Hazards

In Kronløbet leisure boats must keep to the south and commercial traffic to the north. When the red lights flash, entering the harbour is prohibited. These rules apply until a permanent arrangement is in place; also check the Danish Maritime Authority's notices to mariners.

By & Havn · By & Havn · By & Havn ▾
byoghavn.dk (2026-10-14): “alle fritidsfartøjer holde mod syd i Kronløbet, mens erhvervssejladsen skal holde mod nord”
byoghavn.dk (2026-10-14): “Indsejling til havnen er forbudt, når de røde lamper blinker.”
byoghavn.dk (2026-10-14): “Indtil da vil de nuværende sejladsregler ind og ud ad Københavns Havn være gældende.”

The Sound has a mandatory ship reporting system (SOUNDREP) for vessels over 300 GT, run by Sound VTS on VHF 73 (northern sector) and VHF 71 (southern sector).

Sjöfartsverket · Sjöfartsverket ▾
sjofartsverket.se (2026-10-14): “Participation in the SOUNDREP Ship Reporting System is mandatory for all vessels above 300 GT transiting through the SOUNDREP operational area.”
sjofartsverket.se (2026-10-14): “VHF: Sector 1 (Northerly) VHF Ch 73 Sector 2 (Southerly) VHF Ch 71”

Hospital and medical

Call the medical helpline 1813 before going to an emergency room in Copenhagen, and bring your health card.

City of Copenhagen ▾
international.kk.dk (2026-10-14): “Remember to call 1813 before you go to an emergency room in Copenhagen and bring along your yellow health card.”

Frequently asked

Who do I call in an emergency at sea near Copenhagen?

Call JRCC Denmark on +45 72 85 03 80. On the radio: MAYDAY on VHF channel 16, or a DSC distress alert on channel 70.

How do I contact the harbour in Copenhagen?

By & Havn's maritime duty phone (for bridge openings, the lock and ship calls) is 4042 3977; the duty line is staffed around the clock but outside office hours is for urgent matters only. Copenhagen Malmö Port's harbour watch (staffed 24 h) is 3546 1111.

Where do I get the marine forecast for Copenhagen?

DMI weather warnings are sent out by the same means as the Danish Maritime Authority's warnings (including the SejlSikkert app). By & Havn's weather station (byoghavn.dk/vejrstation) shows wind, current speed and current direction in the harbour.

Read before you sail

Nearby destinations

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