RaceAtlas

Alcatraz Island Tides: Friday, December 11, 2026

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

4.6 ft2:10 AM3.5 ft6:23 AM5.8 ft12:04 PM-0.5 ft7:12 PM0 ft2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 5.8 ft at 12:04 PM, low -0.5 ft at 7:12 PM. Gate: flood 2.2 kt at 10:19 AM, ebb 1.5 kt at 4:30 PM.
Modelled current at the Golden Gate on a 2.2 kt floodThe Gate at max flood, 2.2 kt
Tide height
TimeHeight
2:10 AMHigh4.6 ft
6:23 AMLow3.5 ft
12:04 PMHigh5.8 ft
7:12 PMLow-0.5 ft
Current · Golden Gate
TimeStateSpeed
3:46 AMslack–
5:45 AMmax ebb SW (235°)0.6 kt
7:27 AMslack–
10:19 AMmax flood ENE (074°)2.2 kt
1:31 PMslack–
4:30 PMmax ebb SW (235°)1.5 kt
8:32 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.