Southampton Shoal Light
| Location | Southampton Shoals San Francisco Bay California United States |
|---|---|
| Coordinates | 37°52′54.981″N 122°24′00.837″W / 37.88193917°N 122.40023250°W |
| Tower | |
| Constructed | 1905 (first) |
| Foundation | wooden piles |
| Construction | wooden tower (first) metal pole (current) |
| Automated | yes |
| Height | 10 m (33 ft) |
| Shape | square tower with balcony and lantern on a 3-storey keeper's house (first) pole with beacon on platform (current) |
| Markings | white tower, black lantern (first) white pole (current) |
| Operator | St. Francis Yacht Club (first) United States Coast Guard (current) |
| Light | |
| First lit | n/a (current) |
| Deactivated | 1960 |
| Focal height | 10 m (33 ft) |
| Lens | 5th order Fresnel lens (on display at the Angel Island Interpretive Centre) |
| Characteristic | Fl W 4s. (first) Iso R 6s. (current) |
Southampton Shoal is a former lighthouse site in California, United States. A platform sits at the southwest edge of Southampton Shoals, northeast of Angel Island in the San Francisco Bay. The platform is all that remains of the original structure and supports an automated bell which chimes every ten seconds and red light mounted on a pole, which flashes on for three seconds and is then dark for three seconds in each six second cycle (Iso R 6s).