RaceAtlas

Alcatraz Island Tides: Wednesday, December 30, 2026

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

5.7 ft5:03 AM1.6 ft11:27 AM4.0 ft5:07 PM1.3 ft10:49 PM2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 5.7 ft at 5:03 AM, low 1.3 ft at 10:49 PM. Gate: flood 3.1 kt at 2:05 AM, ebb 1.3 kt at 9:35 AM.
Modelled current at the Golden Gate on a 3.1 kt floodThe Gate at max flood, 3.1 kt
Tide height
TimeHeight
5:03 AMHigh5.7 ft
11:27 AMLow1.6 ft
5:07 PMHigh4.0 ft
10:49 PMLow1.3 ft
Current · Golden Gate
TimeStateSpeed
2:05 AMmax flood ENE (074°)3.1 kt
6:10 AMslack–
9:35 AMmax ebb SW (235°)1.3 kt
12:04 PMslack–
3:03 PMmax flood ENE (074°)1.9 kt
6:31 PMslack–
8:56 PMmax ebb SW (235°)1.0 kt
11:28 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.