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Fort Saint-Louis Lighthouse

Fl WRG 15s🇲🇶Martinique, MQInactive

Location & Light Range

About Fort Saint-Louis Lighthouse

The Fort Saint-Louis lighthouse in Martinique is no longer operational. It had a focal height of 31 meters. The light emitted an occulting red signal, with a 4-second cycle. This former navigational aid had a geographic range of 6 nautical miles. Its light colors included white, red, and green.

Light & Optic

Characteristic Signature
Fl WRG 15s
Flash Type
Flashing
Light Color
WRG
Flash Count
1 flash
Interval
15s
Raw Code
Oc.R. period 4s
Focal Height
31m
Geographic Range
6NM

References & Identifiers

Admiralty No.
J5785.8
NGA No.
14980

Location

City
Martinique
Country
🇲🇶MQ
Latitude
14.5985°
Longitude
-61.0666°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Fort Saint-Louis Lighthouse at night?+
Fort Saint-Louis displays the characteristic Fl WRG 15s — 1 wrg flash every 15 seconds. Each lighthouse has a unique flash pattern published in the List of Lights, allowing mariners to positively identify it and distinguish it from other navigation aids in the area. The wrg color may indicate a specific sector or warning zone.
Which ports and harbors does Fort Saint-Louis Lighthouse guide vessels into?+
Fort Saint-Louis Lighthouse assists vessels approaching 5 nearby ports. The closest is Fort-de-France at 1 NM to the ESE. Other ports served include Port de Fort-de-France Pt. (1 NM E), Case-Pilote (4.4 NM WNW), Les Anses-d'Arlet (7 NM S), La Trinite (8.8 NM SSE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Fort Saint-Louis Lighthouse still active and maintained?+
Fort Saint-Louis Lighthouse is currently listed as inactive. It may have been decommissioned, replaced by a different navigation aid, or temporarily taken out of service. Mariners should check the latest Notices to Mariners for current status.
How can I track vessels near Fort Saint-Louis Lighthouse?+
You can track vessels near Fort Saint-Louis Lighthouse in real time using MarineRadar. The platform shows live AIS positions of ships in the area, including vessel name, type, flag, speed, and course. Use the "Track Vessels Nearby" button on this page to open the live map centered on this lighthouse.