RaceAtlas

Alcatraz Island Tides: Saturday, September 27, 2025

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

4.1 ft4:49 AM3.3 ft8:59 AM5.4 ft3:12 PM0.8 ft10:25 PM2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 5.4 ft at 3:12 PM, low 0.8 ft at 10:25 PM. Gate: flood 2.1 kt at 1:21 PM, ebb 1.1 kt at 7:14 PM.
Modelled current at the Golden Gate on a 2.1 kt floodThe Gate at max flood, 2.1 kt
Tide height
TimeHeight
4:49 AMHigh4.1 ft
8:59 AMLow3.3 ft
3:12 PMHigh5.4 ft
10:25 PMLow0.8 ft
Current · Golden Gate
TimeStateSpeed
2:26 AMmax flood ENE (074°)2.0 kt
6:52 AMslack–
8:25 AMmax ebb SW (235°)0.5 kt
10:08 AMslack–
1:21 PMmax flood ENE (074°)2.1 kt
4:30 PMslack–
7:14 PMmax ebb SW (235°)1.1 kt
11:13 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.