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Cape Portman Lighthouse

Fl White 5s🇮🇳INOperational

Location & Light Range

About Cape Portman Lighthouse

Also known as: Cape Portman (North Passage Island)

The Cape Portman Lighthouse is a 14-meter tall square masonry tower situated on North Passage Island at the northern entrance to Diligent Strait. It features a gallery and an enclosed equipment shelter at its base, painted white. The lighthouse emits a single white flash every 5 seconds. Its light has a geographic range of 15.1 nautical miles, with the focal plane at 29 meters above sea level. The nearest port is Port Blair, approximately 33.1 kilometers away. This facility is operational and serves as a guide for mariners.

Why it matters: This lighthouse is essential for vessels navigating the northern entrance to Diligent Strait, a key waterway in the region. Its strategic placement on North Passage Island helps prevent groundings and ensures safe passage through potentially hazardous waters.

Light & Optic

Characteristic Signature
Fl White 5s
Flash Type
Flashing
Light Color
White
Interval
5s
Raw Code
Fl W 5s
Focal Height
29m
Geographic Range
15.1NM

Location

Country
🇮🇳India
Region
Andaman and Nicobar Islands
Sea Region
Diligent Strait, northern entrance, North Passage Island, India
Latitude
12.1962°
Longitude
92.9330°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
14m
Tower Shape
square
Tower Color
white
Material
masonry

Structure: square skeletal tower with gallery and an enclosed equipment shelter in the base, painted white

References & Identifiers

Nearest Port
Port Blair(33.1 km)
Admiralty No.
F1202.58
NGA No.
26539
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Frequently Asked Questions

How do mariners identify Cape Portman Lighthouse at night?+
Cape Portman displays the characteristic Fl White 5s. 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 white color may indicate a specific sector or warning zone.
Which ports and harbors does Cape Portman Lighthouse guide vessels into?+
Cape Portman Lighthouse assists vessels approaching 3 nearby ports. The closest is Elphinstone Harbour at 5.7 NM to the N. Other ports served include Meadows (15.2 NM SW), Port Blair (33.5 NM SSW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Cape Portman Lighthouse still active and maintained?+
Yes, Cape Portman 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 Cape Portman Lighthouse?+
You can track vessels near Cape Portman 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.