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St. Johns Light

Location: Mayport Naval Station near Jacksonsville, FL

Local Marine Forecast.

There are no active watches, warnings or advisories 

Latest Condiitions.

About St. Johns Light

The location of the light is Mayport Naval Station. The nearest city is Jacksonsville, FL. The station was first established in 1954. The current lighthouse was first lit in 1954.

The lighthouse is a white square tower.

The tower has a group-flashing white light at a focal plane height of 83 ft above mean high water. The light has a nominal range of 19 nautical miles. The tower height is 83 ft. The light has a period of 20 seconds.

Open to the Public?: No    Active?: Yes

Identification number: 575 (U.S.)

Obscured from 179 to 354. F R aerial obstruction light atop lantern.

1s fl 2.3s ec.
1s fl 2.3s ec.
1s fl 2.3s ec.
1s fl 9.1s ec.

A 'group-flashing' light is a flashing light in which a group of flashes, specified in number, is regularly repeated.

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