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Gummerholmen

Natural harbour

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Region: Sweden (2119), Stockholm (495), Stockholms skärgård (457) and Nynäshamn (38)

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Facilities

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Mooring

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Map of Gummerholmen

Facilities

We don't have any data on available facilities in this harbour. If you know which facilities are available here, please update this site to help your fellow sailors. Update facilities.

Mooring

We don't have any data on how to moor in this harbour. If you know how to moor here, please update this site to help your fellow sailors. Update mooring.

Wind protection

Protection next night

67 points

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Want to know how the wind score works? Then you should read this explanation.

The wind forecasts come from yr.no (Norwegian Meteorological Institute), and was last updated 1 hour and 55 minutes ago (Thursday 28 August 11:27 AM). The next night score shows you the worst hour between 22:00 and 08:00 the next night. We recommend that you check multiple sources for wind forecasts. windy.com is a good website to show larger wind systems.

The safe wind directions for this harbour has been decided by an algorithm, based on how elevated the land around the harbour is. It's mostly correct, but sometimes the underlying data about elevation levels is not good enough to make correct decisions. It's a great help to other if you can validate or adjust the safe wind directions. You can see the data used by the algorithm to decide the safe wind directions by clicking here.

Last visits to Gummerholmen

Sat 16 Aug 2025

GREVEN [MMSI: 265025600]

Mon 21 Jul 2025

ELLOISE [MMSI: 265772010]

Thu 17 Jul 2025

ELLOISE [MMSI: 265772010]

Tue 15 Jul 2025

LEVA [MMSI: 265816940]

Mon 14 Jul 2025

EXLIBRIS IV [MMSI: 265611750]

The visits are retrieved from AIS data. You can click to see all visiting ships to Gummerholmen, as well as statistics about the ships that visits

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