RaceAtlas

Alcatraz Island Tides: Monday, August 31, 2026

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

5.1 ft2:14 AM1.2 ft7:57 AM5.9 ft2:32 PM0.9 ft8:43 PM2 ft4 ft6 ft12 AM6 AM12 PM6 PM12 AM
High 5.9 ft at 2:32 PM, low 0.9 ft at 8:43 PM. Gate: flood 3.4 kt at 12:08 PM, ebb 1.6 kt at 6:19 PM.
Modelled current at the Golden Gate on a 3.4 kt floodThe Gate at max flood, 3.4 kt
Tide height
TimeHeight
2:14 AMHigh5.1 ft
7:57 AMLow1.2 ft
2:32 PMHigh5.9 ft
8:43 PMLow0.9 ft
Current · Golden Gate
TimeStateSpeed
12:09 AMmax flood ENE (074°)2.7 kt
3:40 AMslack–
6:20 AMmax ebb SW (235°)1.4 kt
8:55 AMslack–
12:08 PMmax flood ENE (074°)3.4 kt
3:28 PMslack–
6:19 PMmax ebb SW (235°)1.6 kt
9:53 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.