Get the MarineRadar appSatellite AISSatellite live trackingTrack any shipLive alerts112,000+ ships trackedDownload free

Monbetsu Detached Breakwater North Head Lighthouse

Fl Green 3s🇯🇵Monbetsu, JPOperational

Location & Light Range

About Monbetsu Detached Breakwater North Head Lighthouse

This concrete lighthouse, built in 1972, stands 11 meters tall on the northern end of the detached breakwater at Monbetsu, Hokkaido Prefecture. The cylindrical, round hourglass-shaped tower is painted white and features a lantern and gallery. Its light emits a single green flash every 3 seconds from a focal height of 12 meters, providing a geographic range of 11 nautical miles. Located 0.9 kilometers from the port, it guides vessels navigating the Sea of Okhotsk. This structure was first lit in the same year it was built.

Why it matters: This lighthouse marks the northern edge of the outer breakwater, ensuring safe passage for vessels entering and leaving Monbetsu harbor, which is particularly important for the local fishing industry.

Light & Optic

Characteristic Signature
Fl Green 3s
Flash Type
Flashing
Light Color
Green
Interval
3s
Raw Code
Fl G 3s
Focal Height
12m
Geographic Range
11NM

Construction & History

Year Built
1972

References & Identifiers

Nearest Port
Monbetsu/Abashiri(0.9 km)
Admiralty No.
M6886.4
NGA No.
260
ARLHS No.
JPN-910

Tower & Structure

Tower Height
11m
Tower Shape
cylindrical
Tower Color
white
Material
concrete

Structure: round hourglass-shaped concrete tower with lantern and gallery

Location

City
Monbetsu
Country
🇯🇵Japan
Region
Hokkaido Prefecture
Sea Region
Monbetsu, at the north end of the outer breakwater
Latitude
44.3488°
Longitude
143.3611°

Nearby Vessels

Flag
Type
Name
Dist.
Live tracking · 50,000+ mariners

Find Monbetsu Detached Breakwater North Head Lighthouse on the live nautical map

Plan voyages near Japan, see nearby vessels in real time, and explore 14,900+ navigation aids in the app.

Nautical mapNearby vesselsVoyage planning
Get the App

Frequently Asked Questions

How do mariners identify Monbetsu Detached Breakwater North Head Lighthouse at night?+
Monbetsu Detached Breakwater North Head displays the characteristic Fl Green 3s. 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 green color may indicate a specific sector or warning zone.
Which ports and harbors does Monbetsu Detached Breakwater North Head Lighthouse guide vessels into?+
Monbetsu Detached Breakwater North Head Lighthouse assists vessels approaching 2 nearby ports. The closest is Tokoro at 34.6 NM to the ESE. Other ports served include Abashiri (44.7 NM ESE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Monbetsu Detached Breakwater North Head Lighthouse still active and maintained?+
Yes, Monbetsu Detached Breakwater North Head 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 Monbetsu Detached Breakwater North Head Lighthouse?+
You can track vessels near Monbetsu Detached Breakwater North Head 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.