RaceAtlas

Alcatraz Island Tides: Tuesday, January 12, 2021

Tide heights at Alcatraz Island with the flood, ebb and slack schedule at the Golden Gate.

3.0 ft4:11 AM6.9 ft10:16 AM-1.4 ft5:19 PM0 ft2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 6.9 ft at 10:16 AM, low -1.4 ft at 5:19 PM. Gate: flood 3.2 kt at 9:46 PM, ebb 1.9 kt at 4:05 PM.
Modelled current at the Golden Gate on a 3.2 kt floodThe Gate at max flood, 3.2 kt
Tide height
TimeHeight
4:11 AMLow3.0 ft
10:16 AMHigh6.9 ft
5:19 PMLow-1.4 ft
Current · Golden Gate
TimeStateSpeed
12:42 AMslack–
3:10 AMmax ebb SW (235°)1.0 kt
5:10 AMslack–
8:15 AMmax flood ENE (074°)3.1 kt
11:30 AMslack–
4:05 PMmax ebb SW (235°)1.9 kt
6:38 PMslack–
9:46 PMmax flood ENE (074°)3.2 kt

Not for navigation. These are harmonic predictions, not live measurements. Tide heights: station 9414792 (Alcatraz Island). Currents: station SFB1203 (San Francisco Bay Entrance, Golden Gate). · RaceAtlas, the SF Bay current atlas.