RaceAtlas

Alcatraz Island Tides: Thursday, September 25, 2025

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

4.5 ft2:47 AM2.5 ft7:51 AM5.6 ft2:05 PM0.6 ft8:46 PM2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 5.6 ft at 2:05 PM, low 0.6 ft at 8:46 PM. Gate: flood 2.5 kt at 12:57 AM, ebb 1.3 kt at 6:06 PM.
Modelled current at the Golden Gate on a 2.5 kt floodThe Gate at max flood, 2.5 kt
Tide height
TimeHeight
2:47 AMHigh4.5 ft
7:51 AMLow2.5 ft
2:05 PMHigh5.6 ft
8:46 PMLow0.6 ft
Current · Golden Gate
TimeStateSpeed
12:57 AMmax flood ENE (074°)2.5 kt
4:41 AMslack–
6:55 AMmax ebb SW (235°)1.0 kt
9:08 AMslack–
12:07 PMmax flood ENE (074°)2.5 kt
3:27 PMslack–
6:06 PMmax ebb SW (235°)1.3 kt
9:58 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.