RaceAtlas

Alcatraz Island Tides: Friday, April 25, 2025

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

0.4 ft4:24 AM4.9 ft10:41 AM0.6 ft4:21 PM5.9 ft10:52 PM0 ft2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 5.9 ft at 10:52 PM, low 0.4 ft at 4:24 AM. Gate: flood 3.4 kt at 8:29 PM, ebb 1.7 kt at 2:52 AM.
Modelled current at the Golden Gate on a 3.4 kt floodThe Gate at max flood, 3.4 kt
Tide height
TimeHeight
4:24 AMLow0.4 ft
10:41 AMHigh4.9 ft
4:21 PMLow0.6 ft
10:52 PMHigh5.9 ft
Current · Golden Gate
TimeStateSpeed
2:52 AMmax ebb SW (235°)1.7 kt
5:35 AMslack–
8:36 AMmax flood ENE (074°)2.7 kt
11:58 AMslack–
2:34 PMmax ebb SW (235°)1.4 kt
5:15 PMslack–
8:29 PMmax flood ENE (074°)3.4 kt
11:58 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.