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Ritidian Point Lighthouse

Fl W 6s🇬🇺Guam, GUOperational

Location & Light Range

About Ritidian Point Lighthouse

This navigational aid at Ritidian Point, Guam, stands as a column topped with a white checkered, black diamond daymark. It emits a single white flash every 6 seconds. The light has a focal height of 175 meters above sea level. Its geographic range extends for 9 nautical miles.

Light & Optic

Characteristic Signature
Fl W 6s
Flash Type
Flashing
Light Color
White
Flash Count
1 flash
Interval
6s
Raw Code
Fl.W. period 6s
Focal Height
175m
Geographic Range
9NM

Location

City
Guam
Country
🇬🇺GU
Latitude
13.6501°
Longitude
144.8617°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Color
white and black

Structure: Column, black diamond (rhombus) daymark white checkered

References & Identifiers

Admiralty No.
M8382
NGA No.
10981
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Frequently Asked Questions

How do mariners identify Ritidian Point Lighthouse at night?+
Ritidian Point displays the characteristic Fl W 6s — 1 white flash every 6 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.
Which ports and harbors does Ritidian Point Lighthouse guide vessels into?+
Ritidian Point Lighthouse assists vessels approaching 4 nearby ports. The closest is Barrigada at 11.9 NM to the SSW. Other ports served include Guam (17.4 NM SW), Apra (Agana) (18.7 NM SW), ROTA (33.2 NM NNE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Ritidian Point Lighthouse still active and maintained?+
Yes, Ritidian Point Lighthouse is currently operational. It is actively maintained and continues to emit its characteristic light signal for marine navigation. Most modern lighthouses are automated and monitored remotely by the national maritime authority.
How can I track vessels near Ritidian Point Lighthouse?+
You can track vessels near Ritidian Point 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.