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Raffles Lighthouse

Fl (3) W 20s🇸🇬Singapore, SGOperational

Location & Light Range

About Raffles Lighthouse

Constructed in 1855, Raffles Lighthouse stands 29 meters tall on Pulau Satumu. The light's focal plane reaches 32 meters above sea level, and it emits three white flashes every 20 seconds. This light has a geographic range of 20 nautical miles. The structure has been operational since its initial lighting in 1855.

Background
Raffles Lighthouse is a lighthouse located on Pulau Satumu in the Singapore Strait, about 14 kilometres (8.7 mi) south of the main island of Singapore.

Light & Optic

Characteristic Signature
Fl (3) W 20s
Flash Type
Flashing
Light Color
White
Flash Count
3 flashes
Interval
20s
Raw Code
Fl.(3)W. period 20s
Focal Height
32m
Geographic Range
20NM

Construction & History

Year Built
1855

References & Identifiers

Admiralty No.
F1693
NGA No.
21500
Wikipedia
Read on Wikipedia →
Wikidata
Q3652320 →
OpenStreetMap
View on OSM →

Tower & Structure

Tower Height
29m

Location

City
Singapore
Country
🇸🇬SG
Latitude
1.1600°
Longitude
103.7406°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Raffles Lighthouse at night?+
Raffles displays the characteristic Fl (3) W 20s — 3 white flashes every 20 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 Raffles Lighthouse guide vessels into?+
Raffles Lighthouse assists vessels approaching 5 nearby ports. The closest is Pulau Sebarok at 4.3 NM to the NE. Other ports served include Pulau Bukom (4.7 NM NNE), Singapore (6 NM N), Pulau Ayer Chawan (6.9 NM NNW), Pasir Panjang (6.9 NM NNE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Raffles Lighthouse still active and maintained?+
Yes, Raffles 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.
What shipping routes pass near Raffles Lighthouse?+
Raffles Lighthouse is located within the Strait of Malacca — the primary shipping route between the Indian and Pacific Oceans, carrying over 25% of global traded goods. This makes it an important navigation reference for commercial shipping traffic in the region.
How can I track vessels near Raffles Lighthouse?+
You can track vessels near Raffles 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.