KOEN
South Portland Breakwater Light in the middle, with the lights within 20 km, in their listed colours.
South Portland Breakwater Light — light characteristic, height, range
One white flash every 4 seconds
Count 4 seconds.Flash white, once.Begin again.
- Characteristic
- Fl W 4s
- Height
- 30 ft · 9 m
- Nominal range
- 3 nmi = 6 km
- Structure
- White.
- Remarks
- Private Aid.
- Position
- 43.6555°N, 70.2348°W · ME

Lights nearby
- Dredged Channel Lighted Buoy 5One green flash every 4 seconds · 254 m
- Seventeen-Foot Shoal Lighted Buoy 3One green flash every 4 seconds · 522 m
- Spring Point Pier LightSteady white light · 539 m
- South Portland Pier LightSteady white light · 717 m
- Portland Harbor Channel Lighted Buoy 1One green flash every 2.5 seconds · 773 m
- Spring Point Ledge LightOne white flash every 6 seconds · 958 m
- Fort Georges Island Ledge Lighted Buoy 4One red flash every 2.5 seconds · 1.0 km
- Fish Point Lighted Buoy 1One green flash every 4 seconds · 1.0 km
Not for navigation. Use official NOAA charts and USCG Local Notices to Mariners.
Real periods; the phase is reconstructed from a fixed clock (real lights don't keep time with each other).
Sources: U.S. Coast Guard Light List (opens in a new tab) · Checked