Port of Isla San Marcos

PortsLast updated: 31 August 2026

Isla San Marcos is an open-roadstead anchorage in Mexico, registered under the UN/LOCODE code MXSMI.

This is a directory stub generated from the UN/LOCODE registry; a fuller write-up has not yet been added.

This record’s port function has not been confirmed by Mexico’s national authority — UN/LOCODE lists it as a “recognised location” (status RL), not an approved one. It may represent a distinct small port, a berth, terminal, or anchorage within a larger port, or a place with no distinct port facility.

Port characteristics

Size / type
Very small, Open roadstead
Shelter
Poor
Entrance restrictions
Affected by tide, swell
Charted depths
  • Anchorage17.1–18.2 m (56–60 ft)
  • Cargo pier12.5–13.7 m (41–45 ft)
Terminal infrastructure
  • Cargo handlingCargo pier charted (12.5–13.7 m (41–45 ft))

Container-terminal handling is not classified by the WPI dataset, so this entry does not infer it.

Mean tidal range
0 m
Max. vessel size
Up to 152 m (500 ft) length

Facilities and services

The port is a first port of entry. Pilotage is compulsory and available. Other quarantine services is available. Communications include radio and radiotelephone. Cargo can be worked at wharves.

The port offers medical facilities. Supplies on offer include water and diesel oil.

Repair capability is rated none.

Notes and references

  1. NGA Pub. 150, World Port Index, 27th ed. (2019), index no. 15880, Pub. 153, chart 21161. Port characteristics are historical reference data; verify current depths, restrictions, facilities, and services with official notices.
  2. NGA World Port Index database (WPI.mdb), 2019. Facilities and services data.
  3. Record status: WPI-classified port.