RaceAtlas

Alcatraz Island Tides: Sunday, December 13, 2026

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

4.6 ft3:21 AM3.4 ft7:52 AM5.3 ft1:23 PM-0.2 ft8:26 PM0 ft2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 5.3 ft at 1:23 PM, low -0.2 ft at 8:26 PM. Gate: flood 2.5 kt at 12:39 AM, ebb 1.4 kt at 6:08 PM.
Modelled current at the Golden Gate on a 2.5 kt floodThe Gate at max flood, 2.5 kt
Tide height
TimeHeight
3:21 AMHigh4.6 ft
7:52 AMLow3.4 ft
1:23 PMHigh5.3 ft
8:26 PMLow-0.2 ft
Current · Golden Gate
TimeStateSpeed
12:39 AMmax flood ENE (074°)2.5 kt
5:22 AMslack–
7:09 AMmax ebb SW (235°)0.5 kt
8:54 AMslack–
11:48 AMmax flood ENE (074°)1.9 kt
2:56 PMslack–
6:08 PMmax ebb SW (235°)1.4 kt
9:28 PMslack–

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.