RaceAtlas

Alcatraz Island Tides: Monday, September 15, 2025

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

0.0 ft1:06 AM4.5 ft8:42 AM3.5 ft12:56 PM6.0 ft6:48 PM0 ft2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 6.0 ft at 6:48 PM, low 0.0 ft at 1:06 AM. Gate: flood 2.3 kt at 4:18 PM, ebb 0.5 kt at 11:12 AM.
Modelled current at the Golden Gate on a 2.3 kt floodThe Gate at max flood, 2.3 kt
Tide height
TimeHeight
1:06 AMLow0.0 ft
8:42 AMHigh4.5 ft
12:56 PMLow3.5 ft
6:48 PMHigh6.0 ft
Current · Golden Gate
TimeStateSpeed
1:52 AMslack–
5:25 AMmax flood ENE (074°)2.2 kt
9:17 AMslack–
11:12 AMmax ebb SW (235°)0.5 kt
1:02 PMslack–
4:18 PMmax flood ENE (074°)2.3 kt
8:02 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.