RaceAtlas

Alcatraz Island Tides: Saturday, December 12, 2026

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

4.6 ft2:46 AM3.4 ft7:05 AM5.6 ft12:42 PM-0.4 ft7:49 PM0 ft2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 5.6 ft at 12:42 PM, low -0.4 ft at 7:49 PM. Gate: flood 2.6 kt at 12:17 AM, ebb 1.5 kt at 5:20 PM.
Modelled current at the Golden Gate on a 2.6 kt floodThe Gate at max flood, 2.6 kt
Tide height
TimeHeight
2:46 AMHigh4.6 ft
7:05 AMLow3.4 ft
12:42 PMHigh5.6 ft
7:49 PMLow-0.4 ft
Current · Golden Gate
TimeStateSpeed
12:17 AMmax flood ENE (074°)2.6 kt
4:39 AMslack–
6:29 AMmax ebb SW (235°)0.6 kt
8:07 AMslack–
11:02 AMmax flood ENE (074°)2.0 kt
2:11 PMslack–
5:20 PMmax ebb SW (235°)1.5 kt
9:01 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.